JPH0796295A - Method and apparatus for treating suspension or mud - Google Patents

Abstract

PURPOSE:To eliminate or decrease labor, simplify installation, and reduce the driving power consumption by carrying out treatment selected from sterilization or germ suppressing treatment and adsorption purifying treatment for water or filthy water produced in excavating work and containing fine particles. CONSTITUTION:Wastewater or waste mud produced in excavating work is sent to a storage treatment base apparatus 41, thrown to a decomposition tank 2 and after passing a dehydrating and vibrating sieve and a vibrating sieve 5, the wastewater or waste mud goes to a tank section 51. There sand and pebbles precipitate. The resultant muddy water is sent to a cyclone 6 by a pump 7 and circulated. Overflowing water goes to a tank section 52 from a flow outlet 14 and is sent to a two-step cyclone 17 by a pump 16. The processes are carried out in the same way. At that time, a swing type switching apparatus 11 is operated based on the specific gravity measured by a specific gravity measuring apparatus 10 and it is determined whether muddy water should be sent to the tank section 52 or not. When the specific gravity is high, carbon dioxide gas is injected through a nozzle 61 to adjust pH to be, for example, 8-10, and a sodium hypochlorite solution, etc., are added through a sterilizing agent injecting system 62. In this way, together with treatment by a cyclone, sterilizing treatment is carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is a method for excavating mud or mud generated in site cast piles, connecting walls, general excavation, rivers, dredging in ports, etc., classification, dehydration, purification, drainage treatment suitable for soil purification. , A method and a device suitable for recycling with improved safety and economy.

[0002]

2. Description of the Related Art Conventionally, there has been no low-cost, simple or environmentally hygienic treatment method for treating and recycling muddy water containing sediment discharged from excavation work for excavating while using muddy water. There was neither a technical idea nor a method of recycling harmful substances while managing them. Sedimentation itself from muddy water is mainly a sedimentation tank, sometimes using a single-stage cyclone, but it is not perfect, and muddy water that does not meet the drilling condition standards is discharged from the system and discarded, and newly prepared It caused a large amount of sludge. In addition, dewatering equipment and wastewater treatment were expensive, and sludge and other problems were often caused by cement solidification and ocean dumping. The inventor is Japanese Patent Application No. 4-302808, Japanese Patent Application No. 4-3.
No. 61818, Japanese Patent Application No. 4-362128 also describes a system including transportation up to recycling, and separation water purification technology. It has been proposed and carried out that carbon dioxide treatment is performed to separate the sediment in mud or sludge to obtain reusable mud for excavation, while on the other hand to obtain landfill or earth and sand that is easily dehydrated.

[0003]

Problems to be Solved by the Invention It is acknowledged that wide-area soil, groundwater harmful substances, chemical contamination, and microbial contamination pose problems in excavation, dredging sludge, coarse sediment containing sediment, mud collection, treatment, and reuse of reuse. And of course, there was no solution. Equipment costs, operating electricity costs, and personnel costs are often unprocessable, but a new method of cost reduction was needed. Conventionally, bentonite mud and drilling mud are often prepared with tap water, well water, etc. each time they are used.
Since there is little risk of wide-area environmental pollution, there was no example of purification of mud itself, and there were unknown problems such as purification and storage methods. As a result of research, when using recycled mud in other drilling sites, harmful substances,
It was found that microorganisms, radioactive substances, and other pollutants could cause environmental pollution accidents such as widespread, soil at unspecified sites, projection into groundwater veins, and diffusion. Therefore, analysis method, management method,
It was necessary to solve many problems such as device characteristics. For example, in the analysis and addition of an oxidizing disinfectant, mud water has a high viscosity and mixing of processing gas and chemicals is poor, and useful additives such as CMC may be decomposed. High specific gravity muddy water can be diluted with water to reduce its specific gravity, but tap water is expensive and sewage, sewage, etc. require treatment. Drilling or dredging mud water has large instantaneous water quality fluctuations and is not suitable for biochemical water treatment. High specific gravity mud has a poor UV transmittance and cannot be irradiated as a thin film. Activated carbon adsorption treatment is easy with water, but activated carbon adsorption etc. of muddy water and muddy water is considered to be difficult to apply because there is no bentonite solution or muddy water treatment example. It was Also, activated carbon adsorption is good for collecting harmful substances in the exhaust gas aerated with muddy water. We would like to make this portable by paying attention to a low-temperature oxidation / regeneration device that is relatively lightweight and has few inorganic obstacles.
This requires a heat source and exhaust treatment, and wants to improve economic efficiency for multiple purposes. Conventional dewatering screen with muddy cyclone was unstable. Diluted liquid could not be treated, and dehydrated matter adhered to the sieve of clay and earth and sand containing a large amount of silt. For water treatment of polluted water, soil purification drainage, contaminated wells, etc., new development of transportation, testing and practical operation, equipment loading, installation, equipment that is easy to use, transportation method, and vehicle equipment was required. In the conventional liquid cyclone, the concentration downstream pipe was severely worn and damaged, and the countermeasure was expensive. Axial cyclones can save power consumption. The small-diameter cyclone aggregate has improved performance, but is difficult to manufacture, and has problems of clogging of sand and abrasion. The same applies to the flow path switching valve. When storing drilling mud, it is polluted by spoilage plants, harmful fallout, etc. when exposed to the atmosphere. There was a film cover, but there was no convenient one that could be opened and closed. Securing the fluidity of the separated sedimentation mud and sediment is an essential condition for labor saving, and the oscillating flow is simple, but the increase in the number of equipment, the complication of power wiring, and the increase in power consumption were problems.

[0004]

[Means for Solving the Problems] Drilling mud recycling is advantageous for treatment, storage of regenerated liquid, wide area distribution, and reuse. However, preventive measures are necessary from the standpoint of preventing contamination of widespread harmful substances and pathogenic bacteria. This problem has not been recognized in the past and no countermeasure was known. The same is true for dredging. The present invention is based on the viewpoint of economical treatment of coarse mud and the like and prevention of disposal as sludge. Cyclone or centrifugal treatment of muddy water to separate and purify soil and sand, or to process or purify separated water from mud to remove contaminants such as harmful substances, fungi, bacteria, toxins and harmful microorganisms. Substantially removed or sterilized (or growth suppression, the same applies below), or also controlled storage and shipping conditions, substantially rendered treated products harmless, and improved the quality of recycled mud. Further, the present inventor discovered and invented that muddy water or a stabilized bentonite solution can be directly purified by chemical treatment or adsorption treatment. Direct treatment of muddy water containing sediment has problems such as equipment wear due to sediment, cake, scale sticking, blockage, difficulty of mixing and stirring, and consumption of excessive amount of chemicals and the like due to it. For this purpose, as a preliminary operation, muddy water containing mud or mud is passed through a vibrating screen, strainer or cyclone to remove the mud and then treated. In addition, the sediment separated according to the present invention has few fine particles, and dehydration and chemical treatment are relatively easy. Addition of chemicals to the separated mud water causes the injection nozzle to project into the pipe or cylinder to prevent local reaction, and also has the function of dispersing while applying shearing force, giving a swinging motion to some extent and giving a swinging center. It is appropriate to put the chemical in the vicinity. This is made easier by placing the guide vane in front of the injection point. Subsequent mixing equipment or hydrocyclone gives strong shearing force and disintegrates particles and separates sand or particles while dispersing the chemical solution, so addition, reaction, dispersion, separation, which was difficult when each operation was performed alone, Disinfection and sterilization can be performed at once. In the same way as before the liquid cyclone, carbon dioxide or an acidic substance is sent to itself as a pH adjuster to disinfect, disinfect, treat or suppress the growth of, for example, hydrogen peroxide solution, sodium percarbonate, ozone, chlorine (chlorine generated by on-site electrolysis). Machine may be used), sodium hypochlorite, cyanuric chloride, etc. are added, treated with strong stirring or shearing force, simultaneously performing sediment separation, holding at disinfection temperature for a required time, by cyclone or centrifugation Purification of water or muddy water system by direct contact with carbonaceous adsorbent such as activated carbon after sedimentation, removal of salts and harmful metal ions by ion exchanger, combined use of sedimentation or storage tank, pH after treatment
Treatment is performed by selection and combination such as addition of alkali for adjustment. By this, construction, civil engineering excavation work, purification work,
Treatment and purification of waste mud or mud generated from dredging work,
Dehydrated, purified, stored, and used conditioned soil can be safely realized at a relatively low cost.

Microbial killing is concerned with pathogenic fungi and microbial ecosystems in soil, but basically to eliminate microbial growth conditions in storage. Contamination must also take into account transmission by small animals. The above-mentioned disinfection and adsorption purification treatment are suitable for the conditions. By the way, according to the Japan Basic Construction Association's stable liquid management guidelines, the pH of the excavating liquid is 7-1.
At 1.5, 8-11.5 is common during or after the work and liquid transfer depending on the soil quality, work conditions, and so on. Focusing on the fact that the optimum growth condition of pathogenic bacteria is pH 7-8, it has been found that it is possible to prevent infection accidents by removing the disadvantageous conditions and adjusting the work and storage pH. The storage and use pH are preferably higher than the upper limit pH at which development is possible. The limit pH is a pH at which bacteria that can be present in soil or sewage in a large amount can grow, such as tetanus 8.3, anthrax 8.5,
Since Escherichia coli is 8.8, it is preferable to store the recycled mud water at about 8.5-8.8 or more. Since cholera, salmonella, and shigella are also about 9.6, it is safe to store them at a relatively high pH when their presence is a concern. Even when increasing the pH is a problem, ie when gelation is a concern, it can be ensured by the addition of the fungicide according to the method of the invention. The storage temperature is also the optimum growth condition 35
~ 37 ° C should be avoided. In general, pathogenic bacteria also have an antagonistic effect on bacteria and thus do not survive for a long time. Therefore, it is preferable to store them for a certain period of time without treatment, for example, for 6 hours or more, especially for about 24 hours or more. Disinfection near the time of shipment is also effective. According to the water supply standard, the residual chlorine is 0.1 ppm or more, but in suspended water, it is alkaline and decays slowly, but does not affect excavation. Actually, equivalent to 0.1-50 ppm of free chlorine can be used. If the final residual chlorine is below the same level as when using tap water, the same conditions as before will be obtained. Sediment separation operation is easy at a relatively low pH, for example, about 8-8.5, but when it becomes 8.5 or less after the separation work, it is adjusted to 8.5 or more by addition of an alkaline substance or a bactericide is added. can do. On the other hand, in the vicinity of neutrality, an oxidizing bactericidal agent such as sodium hypochlorite becomes active, and the pH is relatively high.
, The control effect of the bactericide is easily preserved and meets the chlorine residue standard equivalent to tap water.

In such a case, the alkali addition is performed before the cyclone, the pump and the mixer near the end to make the mixture intimate.
This is because if there is a population of particles or agglomerates, it is possible that the conditions for bacterial growth are satisfied therein, and therefore, according to the present invention, shearing force is applied so that the treatment extends to the particle aggregates and the thixotropic fluidity is maintained, It is often operated before re-agglomeration, processes involving hydrocyclone, which also serves as a reactor for particle disintegration, separation and agitation, disinfection and neutralization, their fixed or portable plant, multiple storage of treated mud Single or combined installation of bases is advantageous in solving problems. The same applies to the adsorption treatment with activated carbon, and it is effective to terminate the treatment promptly after the treatment system is subjected to shearing and dispersion forces. These operations are most efficient when applied to the extruded stream portion of particle processing. From a phenomenological point of view, this seemed to be similar to the case of a highly viscous fluid reaction. This is because the mixed and diffused state of the reaction system is not good in storage in a tank that is stationary or in a gently stirred state. Especially in a large-scale storage tank, the circulation and batch type reaction operations have poor power efficiency. It was found that there is a condition that is substantially harmless as the treated drilling mud and the like, and this condition is required for the experiment. For example, it was also found that the stabilized mud of bentonite or its recycled mud can be disinfected and adsorbed and purified by direct contact with activated carbon or a carbonaceous adsorbent. If disinfection produces harmful substances such as trihalomethane, these can also be removed by placing an activated carbon or carbonaceous adsorbent treatment device at the rear of the treatment process.

When the deterioration of the activated carbon or the carbonaceous adsorbent as an adsorption purification agent is small, it can be discarded or reused by conventional high-temperature regeneration, but in sewage treatment, especially in direct treatment, the life is generally short, and preliminary microbial treatment is carried out. However, it is difficult to select operating conditions and operate because it requires a long aeration tank and a large aeration tank, so purification of small-scale water pools has been difficult due to the difficulty of wastewater treatment. It was difficult for me. With activated carbon purification, the operation is simple, the odor of sewage can be easily removed, low temperature oxidation regeneration can be advantageously used repeatedly, and it can be easily regenerated on site. Power, heat, and exhaust can be used in on-vehicle equipment and engine generators, and cooling and exhaust purification can be facilitated by using target wastewater. That is, it is natural that this type of portable purification device can be used for large-scale objects, but even for relatively small-scale objects, which was a problem in the past, due to the combined use of the device and equipment,
It can be cleaned relatively advantageously. Moreover, it is possible to carry out purification treatment while avoiding site conditions, site area restrictions, residents' opposition to the allowable limit that tends to occur with permanent equipment, and environmental problems. This utilizes the advantages of low temperature and small size of the low temperature oxidation regenerator of carbonaceous adsorbent and low temperature operation that can use exhaust gas.Moreover, whether or not to apply the technology is promptly determined by the field practical test so that many environmental treatments can be taken. It also enables actual operation. Clarification of water is difficult and expensive, but low-temperature regeneration has the advantage of facilitating environmental purification by allowing activated carbon treatment of muddy water. Activated carbon is now available, although it was previously considered unusable for particulate suspensions. The adsorbent regeneration conditions are preferably lower than the sintering temperature of mineral substances such as bentonite and clay fine particles, and for a short time, and the air or free oxygen is at a temperature sufficient for low temperature combustion, decomposition and desorption of adsorbed carbonaceous substances, combustible substances and others. It was found that the purpose can be achieved by maintaining the porosity without carbon accumulation by fluidized low temperature oxidation regeneration using an atmosphere containing, or combustion gas, engine exhaust, etc. Note that regardless of the internal combustion engine or the combustor, the exhaust gas at the time of soot generation in the initial stage of ignition may contain tar substances, so it is preferable to introduce or release the purification system, but there is a problem except that the low temperature regeneration condition is extended. Few. That is, low temperature regeneration of activated carbon by using exhaust gas from engine exhaust, combustor, etc. is not only used as heat but also exhausted by the design of the device.
It can also be used for wastewater purification. In such a case, it is preferable to finish by contacting the activated carbon with fresh air in the subsequent stage. The air used here is used as internal circulation air for temperature control of regeneration and is easy to use for adjustment. is there.

As the adsorbent, hard, high-strength, high-density granular coal is convenient in terms of separation from muddy water. Unlike conventional activated carbon, activated carbon containing iron may be used, since drilling mud is used in the neutral pH range because of its good adsorption efficiency and drilling mud is used on the weakly alkaline side. It may contain magnetic iron oxide or ferrite in order to facilitate magnetic recovery. The activated carbon itself may be weakly acidic, which has not previously been known. To remove harmful metals and the like, ferrite or a ferrite-forming substance is used, and magnetic separation and centrifugation can be used in combination for separation. This also applies to powdered coal. Since the adsorption conditions and the bacterial growth conditions tend to match, in that case, it is necessary to add a bactericide or alkali after the treatment.
An example of low temperature oxidative regeneration is the inventor's patent 103141.
8, Japanese Patent Applications 63-294945 and 63-315146
However, since it is possible that coexistence of muddy water and fine particles of low melting point containing iron in the soil, coexist with 500-550.
Oxidation and regeneration at temperatures of around ℃ or below, particularly 500 ° C. or above and about 350 ° C. or above are preferable, and it is appropriate to use a fluidized bed, stirring or vibrating fluidized bed as a regenerating atmosphere under the condition that air or combustion gas does not violently combust. Before or after regeneration, the regenerated carbon is preferably subjected to acid treatment with sulfuric acid, hydrochloric acid, sulfurous acid, or a substance containing them, each time or whenever necessary. Adsorption is preferably performed with a fluidized bed having a granular activity from the viewpoints of clogging of the adsorption layer with suspended particles and surface separation of adsorbent particles. Powdered activated carbon or a powdered carbonaceous adsorbent can be used in water with a small amount of fine particles such as separated water from separated sediment. If the mineral concentration is high, it will separate. Thus possessing an adsorption purification device not only mud or water separated from muddy water. Industrial water, sewage, rainwater, reclaimed water, general wastewater can be treated and drilling mud can be used as water.
The reason why the adsorbent can be brought into direct contact with the drilling mud is that the mud contains CMC and the like, which makes the particle size of the fine particles appearing to be coarse, and the used chemical such as C
MC, CMC-based so-called polymer compounds are adsorbed to pentonite, clay, and silt particles and are in adsorption equilibrium, and the amount of free dissolution in the liquid is small, while impurities and microorganisms to be removed are mostly present in the liquid or particles. It is presumed that the impurities are weakly adsorbed on the surface and impurities are preferentially removed in the sterilization reaction or adsorption operation for a limited time.

By monitoring and treating harmful substances mixed from excavated soil, substantially all of them can be reused. In order to carry out this, individual contractors can treat sludge equivalent products in addition to the conventional high-quality sludge treatment. The treatment conditions, equipment, and muddy water that minimize waste by combining the muddy water treatment of multiple small-scale excavation sites and treatment bases or multiple excavators at a large-scale site through a transportation system to exchange substances. Adjustment and improvement of fine particle conditions in
Standard control such as specific gravity can be performed. Well-known measuring instruments and simple analytical means can be used for monitoring, but it is difficult to sufficiently strip volatile harmful substances into the gas phase by simple aeration. Therefore, a shearing force is applied to mud or muddy water by stirring or the like, and aeration or aeration is performed within the thixotropy effective time to analyze the gas phase, or the removal treatment is performed. Although there is little possibility of radioactive contamination of groundwater, it is difficult to recover if contamination to other sites spreads. Therefore, it is preferable to install a radiation detector such as a Geiger counter or a batch dosimeter at the storage base. It is an advantage of the activated carbon treatment that the trace amount of adsorbed carbonaceous matter in the drilling mud after the mud treatment is unrelated to the drilling environmental pollution. Contamination of carbonaceous soil is said to be beneficial, and adsorbed harmful substances are rendered harmless by microbial decomposition. Among the organic chlorine compounds that may be mixed in sludge and drilling mud, the solvent components such as trichlorethylene are the most likely. (They are also accompanied by trace amounts of amines and phenols, but these are likely to decompose and disappear.) Since drilling mud tends to gel and flocculate to some extent, it is simply removed by bubbling in the case of analysis and detected by collection or analysis. Inferior in power. Therefore, in the present invention, a pump, a stirrer, gas is supplied to the vicinity of a cyclone, gas-liquid contact is made within the thixotropic effective time of disintegration and dispersion thereof, and after the chlorine compound is distributed in the gas phase, the gas is extracted and analyzed. Or concentrate analysis. As an analytical instrument, a known method such as a gas chromatograph, a halogen detector or a detector tube can be used.

Muddy water, which contributed to the difficulty of mechanical separation of soil and sand,
For irregular concentration fluctuations of sand and silt in stabilized mud, vibrating sieve, controlled liquid cyclone, intermediate pump function, settling tank, improved dewatering sieve, sediment separating fine particles, silt storage function , A function of removing fine particles, a function of concentrating and storing fine particles, a function of reducing the same to muddy water, or a combination of functions selected from those functions can be used.
The main components are the combination of separation and reuse of fine particles that hinder recycling or dehydration, the function of adjusting concentration and specific gravity and disinfection, removal of harmful substances, transportation and storage functions.
The muddy water obtained by the treatment is adjusted in characteristics such as specific gravity, viscosity, filterability, and electrical conductivity so that it can be easily adapted to the excavation standard and the situation at the treatment equipment itself, transportation means or on-site equipment, or at the time of shipment and at the excavation site. It is adjustable and secures flexibility, and such an idea does not emerge from the way of shipping industrial products of a certain standard using a certain level of modern raw materials. That is, the characteristic of the present invention is a system that responds to the demands of excavation sites that have various requirements by performing various purification processes on various emissions from various excavation sites with a relatively simple process. Of course, individual companies may have their own on-site processing equipment and storage base. For this purpose, the present invention can use, for example, a cyclone with an axial-flow cyclone that passes through the cyclone in two or more stages at the high concentration of the inlet or has the same ability as the two stages. When the concentration is low at the entrance of the second and subsequent stages, the parallel processing can increase the processing capacity and save the power. The cyclone operation can be switched automatically or manually depending on the outlet specific gravity. Cyclones may be single or multiple combinations. One combination may include those with different diameters. A cyclone having a relatively small diameter is advantageous for controlling the silt content from the viewpoint of energy saving, and a pump and a small cyclone can be provided separately from the main stream and can be used all the time or when necessary. More small and small diameter cyclones are required to obtain the same throughput.
In order to save power, Japanese Patent Application No. 4-3028 is used for separating fine particles.
The flow device described in FIG. 3 of 08 may be used.

It is preferable that the characteristics such as the specific gravity of the muddy water to be reused after treatment have a property with additional room for adjustment in the treatment and storage facility. This is because the required properties of mud water are diverse at multiple excavation sites.
This point was also considered to be one of the reasons why it was difficult to recycle conventionally. After that, bentonite, a stabilizer, and a dispersant can be added to adjust the properties required. This is a new finding obtained from many experiments, which has made it possible to transport and utilize recycled mud in many new drilling sites. The proof of reusability was similar to the conventional prepared fresh mud, for example by ultrasonic measurement, observation and recording of the excavated wall. On the contrary, the mud supply control system according to the present invention is useful for excavation control utilizing recent measurement by ultrasonic waves or the like. Otherwise, such measurements would generate a huge amount of waste. Circulation of stored mud water, biochemical treatment by aeration, prevention of spoilage, and suppression of growth of microorganisms such as plankton prevent accidents caused by tetanus bacteria and suppress the growth of pathogenic microorganisms. These are important findings. The reason why there is no obstruction of mud circulation or accumulation of wastes is considered to be that a pseudo equilibrium of adsorption distribution of impurities and wastes is established between the mud and the separated sediment. At the excavation site, muddy water leaks little by little to the ground and the quality is balanced, so harmful substances,
It is necessary to manage the mud for excavation concerning pathogenic bacteria.
Conventionally, such a case has not been taken into consideration, and therefore, there has been no example in which the quality of muddy water enough to be circulated many times has been considered hygienically. In terms of excavation technology, sand content in recycled mud water (particle size of 74 microns or more according to the test method of stable liquid management guidelines) 3%
Especially preferably 0.5 to 1% or less. On the other hand, the acidic substance according to the present invention is the safest because carbon dioxide gas or humic acid type is naturally present, but if the amount is small, its use is restricted in relation to oxalic acid, acetic acid, organic acid treatment and conductivity. Hydrochloric acid or sulfuric acid, phosphoric acid and acidic compounds of its family can be used with caution. There is an advantage that a small amount is sufficient when used in combination with a liquid cyclone. Therefore, unlike sedimentation agents such as polyacrylamide, dissolved components are completely harmless in terms of hygiene. The use of ammonia and nitric acid is not hygienic. The present invention has the advantage that there is no groundwater contamination due to underground leakage. The pH as an operating condition depends on the target microorganisms and chemicals used in soil separation and disinfection, adsorption purification, biochemical purification,
The optimum conditions differ depending on the conditions of use as muddy water at the excavation site. Therefore, it is desirable to be able to freely control the up and down of the pH, and multiple combinations of mixers in cyclones or conduits allow for the free modification and control of inconsistent processing or storage conditions as needed. If a treatment time is required, a treatment device or a tank may be inserted between the devices for raising and lowering the pH. The tank can sometimes be a large reservoir.

Sterilization can also be achieved by heating. There was no phase separation or alteration even when the bentonite stabilizer treated with carbon dioxide gas or the like was heated or boiled for 30 to 60 minutes. Sterilization is 60 ℃ or higher, especially 62-65 ℃, 5
-30 minutes or more pathogen disinfection pasteurization or 90-10
Processing at a relatively high temperature of 0 ° C is also possible. In the case of bentonite muddy water, a thin-film flow-through heat exchanger with high heat transfer could be used regardless of containing solid particles. With additional vibration, thixotropy improves liquid distribution, mass transfer, and heat transfer, prevents scale formation, and eliminates pressure loss. A helix can be inserted into the inner wall of the tube to vibrate the helix with a small amount of power. It can also be used advantageously as a lightweight device for vehicles.

When assembling a compact device, it is possible to combine the muddy water or mud supply mechanism, the vibrating screen, the tank, the pump, the cyclone and the material supply device for the earth and sand or muddy water treatment into one or more units. it can. This can be achieved by reducing the capacity of the intermediate storage tank to such an extent that the pump cannot be operated, and instead, by increasing the capacity of the pump, cyclone, etc. in multiple stages. It is convenient to equip the automatic water level control of the tank. In this case, wear-resistant and high-performance parts repair,
A cyclone that is easy to manufacture and replace is advantageous, and FIGS. 17 and 18 of Japanese Patent Application No. 4-302808, which is the previous invention, are suitable. In particular, it becomes convenient to insert and replace the cyclone lower outlet pipe, which is heavily worn and worn. The treatment device in which one or more units consisting of a water or muddy water supply mechanism, a vibrating screen, a tank, a pump, an adsorbing device and a low-temperature oxidation regenerating device for a carbonaceous adsorbent or an inorganic adsorbent are combined is earth and sand. It can be used as a mud treatment and purification device for excavation by combining it with a separation device. It can be used for the treatment of dredged mud water and the purification of water systems with severe pollution.

The processing device in which these devices are compactly loaded and fixed on the chassis or detachably fixed can be parked on site and temporarily fixed for work, thereby exhibiting mobility. During the work of introducing muddy water into the processing apparatus, there is an increase in the load due to the weight of the muddy water that accumulates, and it is preferable to avoid harmful vibrations, tilting of the chassis, etc. due to operation. For this reason, it is preferable that the fixing or supporting arm is extended below the chassis or on the side surface to support the device. The combination of the retractable arm and the footrest, which is similar to a crane truck, is good for vibration prevention. In particular, the vibrating screen can be lifted from the chassis to impose a load on the support arm to avoid adverse effects on the vehicle. A device that uses an in-vehicle engine as a power source, a heat source, or a fluidizing gas for regeneration does not require a combustion gas generator or can be downsized. In addition, waste heat can be effectively used for the low-temperature oxidation regeneration device for activated carbon and carbonaceous adsorbent. If a field test with an in-vehicle device indicates that the device can be used, the required unit device can be immediately moved to a stand or tank for installation, and the empty vehicle can be returned. The trailer can be left in use. Conventionally, many tests have brought back samples to carry out laboratory tests and intermediate tests, but the procedure to bring the equipment to the site and carry out the field test, save money and time, and avoid the risk of commercialization. It has been found that when the separated fine particles are returned to the supply side of the cyclone in the coarse particle separation stage, the separation performance of the coarse particles in the preceding cyclone also deteriorates.
This is considered to increase the specific gravity of the liquid and decrease the sedimentation speed. Therefore, it is preferable to simply switch to another cyclone or operating cycle to separate and concentrate.

Stabilized mud in the ground drilling method for cast-in-place cement piles contains bentonite fine particles, CMCs that are viscous components, dispersants, etc., and in the case of filtration and dehydration, the clogging of the filter medium is severely included in the work. Separation of soil and silt is difficult. However, by separating the fine particles on the water side according to the present invention, filtration or centrifugal dehydration was facilitated, simple sedimentation dehydration was possible, and vacuum dehydration was also facilitated. Therefore, the amount of solidifying agent used is reduced or unnecessary.

Organic matter adhering to the separated mud or earth and sand is 34
Organic carbon harmful substances are decomposed or separated by fluidized heating at 0 to 500 ° C., and a carbonaceous residue is left. This residue is burned at a low temperature by maintaining it at the same temperature in air or an atmosphere containing free oxygen. In addition, the heat of combustion can be generated at the same time by making it harmless and applied to the heat source for processing.
Since it is a low-temperature treatment, the equipment constituent material does not require an expensive heat-resistant material, a large-sized equipment can be manufactured relatively easily, and the treatment by mass accumulation facilitates the organic sludge treatment because of the heat balance. Operating conditions and equipment are similar to carbonaceous adsorbent regeneration such as activated carbon. Low temperature combustion is a low value chimney, incinerator,
There is an advantage that engine exhaust gas can be used.

[0017]

Example 1 Carbon dioxide gas was blown into a waste bentonite sludge containing specific gravity of 1.42 and containing earth and sand while vigorous stirring to set the pH of the sediment to sediment, and 100 ml of a regenerated bentonite stabilizer having a specific gravity of 1.05 was obtained. Sodium chlorate 13% solution 0.1
ml was added and the mixture was vigorously stirred at room temperature. After 120 minutes, a sample solution was obtained by vacuum filtration, and a 24-hour culture test was performed using a commercially available agar culture medium, and compared with the sample solution containing no disinfectant according to the number of colonies. The disinfectant additive was decreased or disappeared compared with the untreated product. The same effect was observed by adding a hydrogen peroxide bleaching agent and agitating a considerable amount of agitated air. Similar results were obtained by adjusting the pH with humic acids acetic acid, oxalic acid, inorganic acids, and acidic salts instead of carbon dioxide. When the disinfectant was added while applying shearing force with strong stirring, wasteful decomposition of fine particles such as bentonite with respect to the disinfectant was avoided, the decomposition rate slowed on the pH alkaline side, and the sterilization or growth inhibitory action was maintained. [Control example]
If sludge or muddy water that does not undergo carbon dioxide treatment or pH adjustment under strong stirring is poorly stirred, pH adjustment is difficult,
The treatment result was unstable and insufficient.

[0018]

Example 2 A methylene blue solution (corresponding to 1 mg) was added as a COD index in Example 1, and the same test was conducted.
It was possible to decolorize near H neutrality. However, the dye is easily adsorbed on the particles, and the decolorizing operation is on the acidic side, 40 to 45 ° C.
It was prompt in the vicinity. Therefore, muddy water containing COD substances,
Alternatively, it is appropriate to treat the earth and sand near neutral or weakly acidic side and return it to the alkaline side again. The pH adjustment may be carried out in the vicinity of neutrality, and a very small amount of the drug may be added if the mixing and reaction operations of the present invention are used. It can be adjusted freely using alkaline calcium and magnesium compounds without the effect of gelation. [Comparative Example] In Examples 1 and 2, when the reaction tank was enlarged, the disinfection or reaction rate decreased under the same conditions.
It was unstable because the pH adjusting agent and stirring power increased.

[0019]

[Example 3] Muddy water obtained by separating soil from mud or sludge,
Or 200 ml of water separated from the earth and sand,
In a beaker, a coal-based spherical activated carbon with a pH of 8.5 or less 1
After adding gram and stirring treatment, COD120 of the filtrate
The thing of ppm was purified to 40 ppm. The waste activated carbon obtained is the invention of the inventor of the present invention.
According to the No. 0 example, with air at 350-500 ℃, 3
It was regenerated by 0 minute fluidized low temperature oxidation regeneration and dilute acid treatment. It was shown that the pH within the mud particles and activated carbon is not necessarily related to the purification of the liquid phase of the mud water when the contact time is within the limited time. This makes muddy water treatment cost-effective

[0020]

Fourth Embodiment FIG. 1 shows an apparatus suitable for treating mud water according to the present invention. The mud discharged from the excavation hole after being replaced with the injected concrete enters the treatment equipment at the site, and the waste mud or waste mud or sedimented hydrous sediment is excavated at the excavation site equipment, on-vehicle equipment or by means of transportation means such as pipes, tank trucks and vacuum trucks. It is transported to the storage processing base unit 41, enters the separation tank 2 from the supply pipe 1 by a slurry pump or the like, and the earth and sand is supplied from the tank bottom outlet onto the dehydration vibrating screen 9. 2 overflow is guide 3
It is supplied to the vibrating screen 5 through the distributor 4 from which pebbles and foreign matters are separated, and then enters the tank compartment 51. It is appropriate to control the tank 2 according to FIGS. 3, 6 and 7 of the present invention. The earth and sand settle to the bottom of the tank and enter the cyclone 7 from the pipe 46 together with the muddy water by the submersible sand pump 6 with the umbrella 57, which is a baffle plate. The separated sediment flow is, for example, the present invention or the previous Japanese Patent Application No. 4-3 of the inventor.
61818 via the outflow control device 8 proposed and the dehydration vibrating screen 9
It is dehydrated and discharged outside the tank. The fluidity of the sediment can be assisted by the lattice-shaped vibrating body 45. The overflow mud drops from the overflow port into the tank compartment 52. When working under conditions that tend to contain sediment, the hydrometer 1 is located upstream of the cyclone 7.
It is measured by 0 and is automatically or manually switched from the outlet 14 by the swing type switching device 11 which is automatic or manual, distinguished by specific gravity and put in the compartment 51 or 52. Due to excess or deficiency of processing capacity, switch to 11 in the same way and change to 5
You can put it in 2. The pump 16 in the compartment 52 is 47
From the second stage cyclone 17 to feed the concentrated muddy water to the dewatering sieve 15 via the adjusting device 18 downstream. The muddy water that has passed through the sieve can be returned to the compartment 51 or 52 by the gutter 19 and can be applied again to the dehydration sieve 9 or 15. The upstream of 17 enters the section 52, 53 or section 54 by switching the swing switching device 21 by the specific gravity measurement controller 20 or manually. Pipes or gutters can be used for transportation. The pump 26 is located in a box-shaped or weir-shaped small section 53 in the section 52, and is surrounded by the gear rally 22 for avoiding mud. The pump 26 supplies the liquid to the cyclone 27 of the third stage, and the downstream side passes through the adjusting device 28 and drops into the gutter 29 to enter the compartment 51, 52 or 53. Similarly, the pump 36 supplies muddy water to the cyclone 37, the specific gravity measurement controller 30, the swing flow path switching device 31, the receiver 32, and the outlet 33 into the next storage tank. The perforated pipe 40 blows and agitates the treated mud or fluidizes the sedimented mud. Reference numeral 60 is a vibrator. This device is characterized in that a plurality of cyclones can be operated under specifications or conditions with different separation performances, a plurality of flow path intermediate tanks can be omitted, and the size can be reduced. A parallel inclined plate settler can be inserted into the settling tank. It is appropriate to apply continuous or intermittent vibration to the inclined plate to prevent the deposition and fixation, and the vibration may be weak. Reference numeral 60 denotes a vibrating screen, a vibrating mechanism such as gutters 19 and 29 for moving particles, preventing accumulation, and fixing.

For mud having a relatively high pH, high specific gravity and poor fluidity, the pH is adjusted to about 8-10 by carbon dioxide gas blowing or a carbon dioxide gas from a pH adjuster injection device or a nozzle 61, and following the addition of the chemicals. Shear force added by cyclone,
Crushing, mixing, increasing the separation effect done at the same time,
Measurement and operation became easier. At the same time, the disinfectant injection system 62
A suitable amount of sodium hypochlorite solution, ozonized air, etc. can be injected from the above to strongly mix, disintegrate, and separate the soil by the cyclone action, and at the same time mix the uniform disinfectant and bactericide. After the treatment, when the pH is below 8-8.5, the alkaline substance can be added from the injection mechanism 63. As an alkaline substance,
The pH can be adjusted to about 8.5-10 by adding a small amount of calcium hydroxide solution, lime milk, and calcium bicarbonate solution. Calcium ions may cause gelation, but they exist in nature, are harmless to devices and organisms, and have the advantage of being easy to control. Sodium carbonate can cause sodium ion damage, but can be used with caution and in limited amounts. High concentrations may liberate caustic soda. The device 41 includes communication between compartments or between devices, a pump, a gutter 19, a switching mechanism 11,
By simplification of 12, 21, etc. (including automatic-manual switching mechanism), muddy water can be received and discharged to any section, shortening the process in the device, parallel operation of cyclone group,
As a result, temporary capacity increase and subsequent refining operation can be freely performed. , The content of fine particles is the diameter of the hydrocyclone,
It can be arbitrarily adjusted by specific gravity control by the number, combination, repeated processing, and operation. Even in the case of treating wastewater containing a large amount of fine particles, if the specific gravity is set to about 1.1 or less, the carboxymethyl cellulose-based other thickeners or dispersants used in the earth drill method, corrosive soil, calcium content, etc. It was possible to separate fine particles of 74-45 microns or less downstream of the hydrocyclone, regardless of their inclusion. This fine particle mud could be stored in mud water or in a water-containing state, and could be redispersed by adding a thickener to water or mud water in a tank by stirring if necessary. This is being saved,
It is preferable to stir with the stirring mechanisms 42 and 45 at every required time so that water release can be prevented and dispersibility can be maintained. Stability can be increased by adding fine bentonite or a thickening agent. Carbon dioxide addition and shear force processing are 2 diameters.
Made under standard operating conditions with cyclones less than 00 mm. A blowing pressure of 0.5 to 2.5 kg / cm ² was suitable. The pH of 10.4 drops to 9.5 after passing through the cyclone, and easily increases to 8.2 by increasing the amount of carbon dioxide.
It decreased to a certain degree and was a quantitative reaction. Depending on the conditions, the gelling tendency was eliminated by 10.5 or less, and the gelling property disappeared due to the blowing of carbon dioxide or humic acid and the separation of the sediment. The effectiveness of the conditions can be easily determined by measuring pH, visually observing the coagulability of the sediment, sand separability, dewaterability, the effect of the sedimentation agent, and the like.

Depending on the treatment, the specific gravity of the discharged mud water is 1.2 to
1.3 becomes 1.05 to 1.15, and it is a cyclone in two stages,
As it was treated in series with three stages, it was easily lowered to about 1.04 to 1.06 without a precipitating agent. The sand content is related to gelation, but 5% to 25% is easily 1% or less 0.3%
It could be about 0.5%. The muddy water that can be used for excavation work has a specific gravity of about 1.04 to 1.15, but the recycled product can be used as excavation muddy water, and it is possible to obtain muddy water that is almost the same as sand removed. It is a feature. The muddy water containing harmful substances is processed by the activated carbon fluidized adsorption device 101 with a stirring device to remove the harmful substances immediately after coming out from the cyclone 37 outlet, and then sent through the tank 32 from 33 to a process, an excavation site or a storage tank. The waste activated carbon is washed with water, passed through an acid treatment device 102 and a drying system 103, regenerated by a fluidized low-temperature oxidation regeneration device, thrown into water, and then returned to the adsorption device 101. The heat source for regeneration can be covered by the combustion furnace, exhaust gas from the internal combustion engine, solar heat, and air drying.
From the wastewater treatment of fine particles, 74 microns or less 50
%, And 44% or less was 35%, and reusable mud for muddy water was obtained. This is a centrifugal force field by a cyclone, and was achieved in a continuous curved surface type atypical cyclone having no break points in the longitudinal section wall portion, which was the invention of the inventor of the present invention. It is also considered that carboxymethyl cellulose and the like, on the contrary, promote the action as a polyvalent flocculant. The particle size distribution differs between the dry sieve and the wet sieve, and the particle size differs depending on the measuring method. This is a new finding. When the specific gravity is reduced by separating the sediment in this way, the specific gravity difference between the activated carbon true specific gravity of 1.8 to 2 (apparent specific gravity (1.1 to 1.5 in water) is secured, and the combination with low temperature oxidation regeneration It is possible to purify mud water by contact with mud water.The agitator in adsorption and regeneration prevents the solidification of activated carbon due to the coagulation of mud particles and local reaction, and may be intermittently driven. It is a matter of course that the planar or three-dimensional size and arrangement of the unit functions can be arbitrarily selected in the figure, and Fig. 2 is an example of the side view of Fig. 1. The bottom of the tank 43 is curved to reduce the weight. The muddy water supply 1 from the drill hole etc. is the vibrating screen strainer 5
Through the pre-separation tank 2 equipped with an automatic specific gravity valve 71,
The separation ability is strengthened.

[0023]

[Embodiment 5] FIG. 3 shows an example of the structure of an adjusting device which can be used by being connected to a separation tank 2 or 8, 18, 18, etc. provided with an automatic valve or a self-powered valve. The valve 71 also functions as a float balance, and is restrained by a rod 75 for smoothing the operation and regulating the position. The float shape may be a vertical or horizontal cylinder or a sphere or the like. The specific gravity of the liquid can be adjusted by the weight 79 that can be moved and fixed. When the sand whose fluidity is retained by the vibration of the vibrator 60 accumulates on the bottom of the tank, the apparent specific gravity increases, and the float 71
To flow out through the gap between the valve seat 77 and the mouth 78
Through it to a dewatering sieve or tank. FIG. 4 is an example of a plan view of 2. However, in the figure, the specific gravity adjusting rod 90 and the weight 79 are located outside the tank, and are connected by the shaft 82 and the bearing structure 83 to facilitate the adjustment. In FIG. 5, a chain is used as a weight to facilitate automatic adjustment or remote operation of the chain wheel 85 by an adjusting motor 86.

[0024]

[Sixth Embodiment] FIG. 6 shows an example in which a control valve is provided on the side surface or side slope of a tank. It is suitable for a device that takes out soil from a large tank while adjusting it. A flow oscillator (for example, a vibration lattice with a cushioning material 89 such as a spring) 45 and a valve 91 are provided at the bottom of the tank to flow the sediment. The outflow is controlled by a valve 74 and a valve seat 77 which are interlocked with a float 71 which is a specific gravity scale, and the sediment is discharged to the dewatering sieve 9. The liquid can be supplied from the pump 6 to a cyclone, another tank or the like.

[0025]

[Embodiment 7] FIG. 7 shows a separation tank 82 equipped with a parallel slope plate settling device and an automatic valve that can be divided into three parts depending on the specific gravity of the slurry. Coarse muddy water is supplied from 1 to the vibrating screen 5 to separate gravel and foreign matters and enter the distribution unit 111 of the tank. The earth and sand settle and settle on the bottom of the tank together with the earth and sand from the inclined plate 99, and flow through the slope by the vibrating machine 60 and the bottom plate serving as a vibration transport machine, and are discharged from the bottom discharging mechanism. Muddy water of intermediate specific gravity is discharged from the intermediate discharge mechanism. There may be no overflow 3 when a liquid with a small specific gravity cannot be obtained. The slope plate may be a slope in two directions, for example, the longitudinal direction and the width direction, so that the slope plate is a slope in two directions. FIG. 8 corresponds to a side view cross section of FIG. 7. However, the parallel slope plate is stretched on a curved surface to reduce the weight. For the same reason, a honeycomb structure having a honeycomb structure may be inclined in two directions, for example, in two directions, that is, the longitudinal direction and the width direction.

[0026]

[Embodiment 8] FIG. 9 shows a mechanism for easily switching the flow path by the swing reversing mechanism of the switching plates 11 and 21 without moving the lowering pipes 14 and 24. 83 is a fulcrum and 109 is a stopper. The tank compartments 51, 5 by the plate or gutter-shaped plate 11
Switch the flow path to 2.

[0027]

[Embodiment 9] FIG. 10 shows a flow path switched by moving the tip of a movable tube such as a hose. The table 123 is provided with a limit switch also serving as a stopper, a fixing hook bar insertion hole 122, and a bearing fulcrum 83.
0, 124 and the bundling hole 121 are supported. Reference numeral 125 is a control cylinder that can be remotely controlled. The limit switch can be used for remote indication of the flow path.

[0028]

[Embodiment 10] FIG. 11 shows a mechanism for moving and switching a horizontally crawling pipe. It corresponds to the horizontal type in FIG. FIG. 12 corresponds to the plan view of FIG. 86 is a drive mechanism for remote or automatic switching.

[0029]

[Embodiment 11] FIG. 13 shows a mechanism for directly moving a hose by a cylinder 125 to switch a flow path. FIG. 14 is a side view thereof.

[0030]

[Embodiment 12] FIG. 15 shows a shielding device in which a plastic film or rubber sheet cover 132 having a specific gravity lower than that of muddy water is floated on a part or all of the surface of the muddy water storage tank. Unlike ordinary water surface, it has a large specific gravity of muddy water, so general-purpose plastic film, natural rubber with reduced filler such as carbon black to make it lightweight, and polyolefin-based synthetic rubber are convenient because they do not sink. When the rope 134 connecting the reinforcing edge 139 to the traveling machine 135 is pulled, the cover is stretched, and when driven by the winding roll 138 and the winding motor 136, the water surface is released. The pump 133 is for draining rainwater. 16 and 17 are plan views of a circular tank and a rectangular tank, respectively.

[0031]

[Embodiment 13] FIG. 18 shows an example of a swirl type mixer, the outlet side of which is connected to an axial cyclone. If the swirl vanes are in the same direction, the pressure loss can be reduced. Fluid enters from the inlet 141, accelerates at the central cone 188, swirls with the insertion swirl vane 142, and then carbon dioxide gas or other acid enters the flow from the inlet 61, further mixes with the swirl vane, and adjusts the pH. After that, a disinfectant or the like is injected from 62. FIG. 19 shows an example of a swirl vane. Conventionally, axial cyclones and axial swirling mixers have not been easily used because it is difficult to assemble swirl vanes and therefore expensive. According to the present invention, a cut is made in the outer shell of a cylinder and flat blades are inserted and fixed. Fixing and sealing can be easily done by welding, adhesive and sealing material. If the mixer length is increased, 188 can be omitted. 19 is a cross-sectional view of a swirl mixer or a hydrocyclone corresponding to FIG. Although it is convenient and cheap to make the entire blade in a strip shape and suitable for mass production, the inner blade edge may be curved, saw-toothed, various tooth shapes, perforated plates or the like to give a disturbing effect. The blade itself may be a perforated plate to give the same disturbing effect. The disturbing protrusion may be inserted from the hole.

[0032]

[Embodiment 14] FIG. 20 shows a hydrocyclone 187.
The concentrated liquid is taken out through a gap 148 with the inner cylinder 149. The amount of removal can be adjusted by adjusting the cross-sectional area of the gap with the insertion depth of the inner cylinder with the slope, or by opening and closing an appropriate valve. Since the acceleration member 188 increases the turning force, it is effective in improving efficiency. It may be omitted for the treatment of muddy water with high sediment content.

[0033]

[Embodiment 15] FIG. 21 shows a swirl vane structure having a chamber for inserting and mounting swirl vanes, which facilitates blade replacement. The blades are worn away by the direct treatment of the muddy water having a large amount of sediment, and the material is limited in the welded mounting structure, but the blade holding structure 146 allows replacement. The blade material has a wide selection range from ordinary steel to wear-resistant metal, ceramic, rubber coating, metal spraying, etc. In the figure, the wear resistant surface material 142 is reinforced by the blade 144. Buffer material 145
Is metal, rubber, plastic or the like, and is fastened with screws 151. Watertightness is maintained by the lid 152. The structure of FIGS. 21 and 22 has made possible a small diameter axial flow cyclone and the like. FIG. 22 shows FIG.
The wear-resistant material 142 is attached to the surface of the insertion welding blade 146 as a surface material.

[0034]

[Embodiment 16] FIGS. 23, 24, 25, 26 and 27 are explanatory views of a dewatering sieve having a wide operation range suitable for vehicle mounting. It can be used for dewatering sludge, muddy water, and hydrated soil. When the blocking foreign matter is removed in advance and then supplied onto the dehydration sieving surface 9 driven by the vibrator 60 by the separation tank 2 or the cyclone,
The mud and earth and sand pass through while being divided by a plurality of substantially parallel dividing functions consisting of plates, stretched wires and rods, separating the diluted mud water, and discharged through the extension portion 163 in a solid or semi-fluid state. The weir 161 and the floating valve structure 162 restrict the flow of muddy water to assist dewatering, and prevent retention of solids and blockage of the sieve surface. The floating valve structure 162 floats on earth and sand, mud solids, and slurry having a large apparent specific gravity due to their vibrations due to the vibration of the sieve surface, so that the floating valve structure 162 acts as a control valve that passes through the earth and sand. It is preferable that the weir 161 can adjust the effective height, and when dewatering hydrated earth and sand directly from the distribution mechanism 4, since the weir structure may be blocked by foreign matters, it is convenient to add a mechanism for pulling it up and releasing it together with the floating valve structure. Is. If the passing mud is collected by the inclined plate 99 and the wall 13 and sediment is accumulated by the pump 6, the cyclone 7
Or, return to 2 and stop when the sediment disappears, or send to the next step. When used as an in-vehicle device, the vehicle tire load is subject to overloading and material fatigue failure due to the vibration of the vibrator in addition to the equipment weight and water weight when operating in the field. Therefore, it is preferable to equip the fixing device 1-57. It is similar to the fixing legs used in mobile cranes and consists of a retracting leg 156, a retracting piston 158 and a foot 159. The leg stand 159 is preferably long like a ski and capable of connecting a plurality of retractable legs. Further, if necessary, it is desirable that the base 155 of the apparatus can be released from the chassis 164 or the axle 166 by remote or direct operation to release the fixing mechanism 190 so that it can be trimmed from the load and vibration. 24, 2
5 is a weir 161 of the dehydration vibration sieve, a valve structure, and a mud dividing function 160
It is a plane explanatory view showing a relation of. The valve structures of a spherical type and a cylindrical type with a collar are shown respectively. Opening arm 7 of weir 161
5 is connected to the valve structure by a flexible support spring or chain 185. FIG. 26 shows the shape of the weir 161 and the mud dividing function 160.
In the example seen from the downstream side of the vibrating screen, the wire and rod 198 may be used as an auxiliary. FIG. 27 is a sketch of these.

[0035]

[Embodiment 17] FIG. 28 is an explanatory view of a compact device which doubles as a mixer and omits a separation tank and a sedimentation tank. Rough mud water from which gravel and foreign matter have been separated in advance enters from the cyclone inlet 141 by a pump, pH adjusters and chemicals are added from the inlets 61 and 62, reacts with the sediment separation and reacts or is sterilized, and the concentrated soil is dehydrated and sieved The muddy water discharged upwards bypasses 9 and enters the inclined plate settler 99 or 51. The inclined plate settler is connected to the vibrating screen 9 by a connecting member such as a spring to give appropriate vibration to prevent the settling particles from staying.

[0036]

[Embodiment 18] In FIG. 29, wear is prevented by a cyclone constituted by a curved surface without breaks on the inner wall surface, and a plug 171 for wear failure prevention is also attached to the lower outlet. Tube material is metal, wear resistant metal, plastic, ceramic,
It may be selected from rubber or the like and may be a combination thereof. A combination of flange and screw is convenient for mounting. The flow rate can be controlled by the specific gravity detection automatic valve 178, and the bottom of the specific gravity measuring tank 8 is a bottom plate 170 having a hole 172 through which soil and sand flow out. A vibrator 60 is attached to prevent clogging. The fluidity of the mud flow is secured, and if there is an outflow from the overflow 3, the control state is entered. The valve closes when a liquid with low viscosity and low specific gravity flows down, but the hole 179
Outflow does not stop and obstruction does not occur.

[0037]

[Embodiment 19] FIG. 30 shows a muddy water distribution mechanism 4 for increasing the efficiency when an inclined plate settler is provided below the vibrating screen 5 or the dehydration screen 9 and an upper part of the inclined plate 99 having an upper end above the water surface. Show the relationship. The flow of muddy water passes near the pump, and the partition 22
Enter the next section from. A low-power processing device can be configured by arranging the devices in pairs of a vibrating screen strainer 5 and a dehydrating screen 9.

[0038]

[Embodiment 20] FIG. 31 is a vertical cross section of a liquid cyclone 187 suitable for treating a large amount of mud water containing sediment. After passing through the vibration strainer, the muddy water mixed with the pH adjusting agent such as carbon dioxide and the sterilizing agent enters from the inlet 141 and flows while swirling. The separated water-containing sediment flow is discharged from the chamber 191 through the pipe 189 and the outflow control valve 74 operating in the specific gravity measuring chamber to the dehydrating sieve or tank. The remaining sediment is likewise discharged from the second or final stage. There may be steps. Muddy water containing a large amount of earth and sand needs to be applied to the cyclone in multiple stages, and power consumption is large with a normal cyclone alone, but difficulties can be avoided by combining with an axial cyclone. It can also be used in mud and two-fluid mixers with the flow direction reversed. In FIG. 32, the central tube is an enlarged type or a conical type 140, and the sleeve 190 forms a sediment flow passage. It imparts oblique motion inertia to the sediment and also facilitates flow splitting. It is convenient and economical to use an atypical welded pipe joint for the central pipe. If the total extraction ratio of the first to third steps is about 50%, the sand content of 30% will be 50%
It is about 60%, and it is advantageous to concentrate and separate to the extent that thixotropic flow is exhibited. The vibrator 60 may provide flow assistance and may alternatively be connected to another vibrating system, such as a dewatering vibrating screen. Even if it contains a low concentration of sand, it can be automatically concentrated to the extent that it can be directly sieved. When the sampling stage is a single position, the separated soil layers gather in layers on the inner surface of the cyclone and are in a state of interference sedimentation, so the separation efficiency decreases. Therefore, it is preferable to take out in multiple stages, but the concentration can be experimentally and automatically determined by measuring the quality and amount of soil or solid matter, and the opening of the valve 74 can be adjusted by the weight 79 if necessary. For the final control of the withdrawal stage, similar specific gravity control may be applied to the outlet 150 side instead of the specific gravity measuring container 8 or the like. At the time of blockage, it can be solved by supplying water, treated muddy water, etc. from 193. Vibration can also be used.
The apparatus of FIG. 32 can be used by submerging it in muddy water, which enhances the capacity of the separation tank 2 and the sedimentation tank. FIG. 33 is similar in both AA cross section and BB cross section. FIG. 34 shows an example of a cyclone or a wing type of a mixer. The holes 194 increased the mixing effect in the mixer, and in the case of the cyclone, the blade wear due to the collected sediment particles was reduced.

[0039]

Twenty-first Embodiment A side outflow cyclone in FIG. In the normal type, in the case of treating mud or muddy water containing a large amount of earth and sand, silt, etc., retention of separated particles may occur near the upper part of the blowing port even if there are easily separable components. This causes material wear, and particle retention is a cyclone short circuit,
It was found that the rotation force was reduced, and the separation and concentration efficiency was reduced. A side flow passage 191 for taking out separated particles is provided in the vicinity of the cylinder or the top plate around the upper part of the introduction section and in the cylinder. The wear marks disappeared, wear on the downstream take-off pipe was reduced, and the sand content in the upstream was reduced. In FIG. 36, the side flow passage is in the peripheral portion. The slit 192 is suitable because of its efficiency and ease of taking out.

[0040]

[Embodiment 22] FIG. 37 shows a sedimentation fluidizing device which saves power and constituent materials by providing a vibration effect instead of an integral vibration of a bottom plate or the like in a tank bottom or a parallel slope plate sedimentation device. Elastic oscillator 45 supported by a fulcrum lattice 89 that is movably fixed
With a vibration function 60 installed at an appropriate position
Two-dimensional traveling wave or standing wave vibration is applied to sediment 200
Fluidize and transport to pump 6 or low position. This enabled low-power and smooth pumping of sediment from a flat bottom tank. In the past, it took a lot of time to take out the sediment accumulated at the bottom of the flat bottom tank. The vibration source may be connected to a vibrating screen. The vibration wave may be automatically and intermittently applied. If left standing for a long time, the sediment tends to solidify, but if vibration is applied, it has an effect of preventing solidification. FIG. 38 is a plan view. The oscillator applies tension like a piano string by 199 or 182. Similarly, the strings or meshes are formed in independent frames as shown in FIGS. 38 and 41, and vibrations with a relatively small amplitude and frequency and vibrations with a slow but relatively large amplitude and a dividing action are combined to deposit particles. Can be added to layers. Both types of vibration may be applied by another oscillator.
The oscillators may facilitate three-dimensionally stacked oscillator city separation and fluidity. Further, they can be loosely and densely stacked to have a filtering effect.

[0041]

Twenty-third Embodiment FIG. 39 shows a vibrating part which has a coarse mesh and a flow function, and supports a shaft which may be a chain, a hook or the like, and a vibrator 45, 89 which is a string or a net which can be moved up and down with the shaft 83 as a fulcrum. It is a dehydrator. Can be used for dewatering mud. A filter cloth may be stretched and vacuumed downward or upward, and continuous dewatering can be performed like a conventional dewatering sieve. Clay does not stick to the dewatering surface in a plate shape, and a roller 162 having a floating valve action or Since the water flow is stopped by the weir 161, it is possible to process relatively thin mud water. The plan view is similar to FIG. In addition to this, vibration similar to that of a conventional dewatering sieve of the main part of the dewatering surface and, if necessary, combined use of vacuum suction-blowing provide a device having both the advantages of the dewatering vibration sieve and the advantage of vacuum filtration.

[0042]

Example 24 Sediment is separated from a specific gravity of 1.06, pH of 8.
The regenerated bentonite muddy water of No. 5 was steam-heated by a tubular heat exchanger, kept at 80 ° C. for 2 hours, and then heat-exchanged with new regenerated bentonite muddy water by the same tubular heat exchanger to reach room temperature. The properties of the muddy water did not change. A falling film heat exchanger equipped with a vibrator could also be used.

[0043]

Twenty-fifth Embodiment FIG. 40 shows waste mud water, waste mud, adjusted mud water that has been separated or purified (hereinafter referred to as treatment), dehydrated or water-containing fluidized sand for backfilling or landfill, collection, treatment and storage of mud. , Is a systematic diagram of use. The drilling hole 211 and the on-site treatment device 212 repeat the treatment of muddy water and mud and excavation work using the muddy water and muddy soil, and the tank car 213 removes muddy water and settled mud that cannot be technically or temporally regenerated at the end of work and on-site equipment. It is transported to the storage tank 218 attached to the processing device of the storage processing base, processed, and stored in the storage facility 220. Then it is transported to each work site again. The separated sand 219 has a low water content and can be carried by a dump truck or the like as it is or after adding a small amount of a solidifying agent or a dehydrating agent. The concentrated water-containing fine particles from under the cyclone are stored in a storage tank 221 in a wet state and used for deflocculation or for the purpose of adjusting the specific gravity of the device itself, and also for exchanging with other storage treatment devices together with muddy water. Reference numerals 61, 62 and 226 denote supply systems for carbon dioxide, pH adjuster, bactericide, bentonite, stabilizer, thickener, water and the like. The mobile processing device 222 can be used as an in-situ processing device or a reinforcement or auxiliary device for the simple separation settling tank 212 or an in-situ testing device. 220 preferably has a facility for storing and compounding muddy water and concentrated water-containing fine particles having different particle size distributions. This is to equalize the properties after treatment of the reflux mud, which varies depending on the excavated soil quality, and it is possible to expand the reusable range. As for the compounding, one of them is regarded as an additive drug, and the compound is added from a nozzle 61 or the like and mixed while being crushed to be homogenized. Alternatively, the mixing device of FIG. 51 can be advantageously used as a two-fluid mixer. It is a mixture of a fine gel or a population of particles and is different in sedimentation and other properties from what is simply mixed in a sedimentation tank for a short time. The conventional method requires time and large power consumption to improve the properties. This was unknown.

[0044]

Twenty-sixth Embodiment FIG. 42 shows a plurality of rows of movable floating weirs 161,
It is a dehydration vibrating screen having 162 and a vacuum filtration dehydration surface 234. Mud or muddy water from 2, 4, and 8 is a side leakage prevention blade 43.
The filtering surface 23 that flows down while preventing the short-circuiting of the flowing mud by the weir 161 having the above, and filters and dehydrates by suction from the automatic valve 232.
The filter cake on No. 4 closes the valve 232 and switches the air supply valve 23.
It is separated by blown air from 1, and is sent downstream by vibration transport. 235 is a spacer for a thin liquid flow path between the bottom plate 235 and the filtration surface. It can also be used directly for dewatering mud water, but the debris that still has water through the dewatering sieve,
Suitable for dehydrating sludge. FIG. 43 is an explanatory plan view thereof.

[0045]

[Embodiment 27] FIG. 44 is a sectional view showing a sand pump installed in a baffle device having a muddy water inlet 240 and a sand pump inlet 258. When the tank 43 is used as a sedimentation tank, the suction port 241 is opened and the upper layer liquid is mainly sent by the pump 6, and when the sediment is sent, the lid 242 is closed and the hole 2 is formed.
Inhale bottom layer from 40. The holes in the slopes 57 are small enough or small in number to facilitate suction from the bottom. It is suitable to attach a vibrator or vibration system 60 to lower the sediment on the slope. The baffle structure and the pump may be integrated. Unlike the tank wall and bottom, the baffle plate does not need to withstand water pressure, so it can be made lightweight. In addition, it has a larger capacity than the conical or pyramidal bottom structure for collecting sediment, and the overall structure is simple. It may be used for dredging of ponds and lakes instead of tanks. At that time, scraping blades are attached to the bottom and side surfaces, and can be moved and rotated for use. FIG. 45 is a plan view thereof.

[0046]

Twenty-Eighth Embodiment FIG. 46 shows a vibration switching transmission mechanism in which the plates of the inclined plate settling machine are divided into a plurality of sets, and the rods 182 driven by the vibration system 60 are intermittently moved through a rotation transmission piece 244 rotated by a control motor 85. Drive, saving power and starting current. Except for the dehydration sieve, continuous operation of the vibrator is not always necessary, but those with a large vibration force consume a large amount of power.
However, it is not a good idea to repeat the operation stop because the starting current is large. In this way, the objects to be vibrated can be grouped and sequentially switched to vibrate. The vibration source may be a vibrating screen or the like. Fig. 47 shows the vibration line or wire rope 1
99 and pulleys and other supporting points 247 are used to change the direction, and a wire or a rigid rod is pressed against the transmission piece 244 to show the action of the elastic body or the movable piece 250.

[0047]

[Embodiment 29] FIG. 48 shows a tank 43 suitable for a mobile processing apparatus.
The cyclone device 7 rotates around a fulcrum 83 provided in the tank and is housed in the tank. The storage and installation are fixed by the support frame 344. The tank frame 344 strengthens the curved surface. FIG. 49 is a side cross-sectional explanatory view of a muddy water treatment tank that can accommodate a dehydration vibrating screen. The tank consists of a shell structure with a convex outer shell to absorb extra vibration, reduce weight, and facilitate mud discharge, and a strengthening frame for supporting this and supporting the equipment. Therefore, the vehicle can be operated as it is on the vehicle, placed on another structure, or fixed if necessary without transmitting harmful vibrations to others.

[0048]

[Embodiment 30] FIG. 50 shows a unique vehicle 349 equipped with a simple crane 348 and a mudwater treatment device 43 and the like loaded therein. From the viewpoint of compactness and operability, it is preferable that the device according to the present invention is used for at least part of the unit device. It is convenient to attach a retractable leg 157 similar to a mobile crane to prevent tipping and vibration. For those that can easily fix and separate unit devices, it is also possible to select a valid device and leave it at the work site after a field test at the site. The fixed one comes in the case of a relatively small general-purpose chassis. The vehicle may be a detachable trailer for transportation and field operation.

[0049]

[Embodiment 31] FIG. 51 shows a mixer suitable for mixing water, stabilized mud water, bentonite mud separated and regenerated thereof. A relatively dense liquid or semi-solid mud is suitably introduced through the central inlet 141. Since mixing with different particle sizes is likely to be a small group, it is possible to reproducibly and uniformly supply a liquid by drilling from mud that is not easy to handle by dispersing and mixing while scratching the shearing force. It became possible to rapidly prepare mud water for use. FIG. 52 shows an example in which the mixer corresponding to FIG.
The mud is put into the tank provided with the mixer 14 while adjusting it with the valve 286.
Supply to 7. The regenerated concentrated bentonite mud and the like that entered from the central inlet pipe 141 by the suction force due to the swirling and the pressure of the tank swirl together with the water from the surroundings or the water from the mud inlets 284 and 285 to disperse and mix while applying a strong shearing force, and then the outlet. Enter from 150 to storage tank or sedimentation tank. 61, 62
It is possible to inject additives such as carbon dioxide gas, a dispersant and a stabilizer.

[0050]

[Embodiment 32] FIG. 53 shows an axial flow type multi-clone. Similar to the normal type cyclone, the small size and small diameter cyclone has improved classification ability and the device can be configured in a plane, so it is easy to manufacture, store, transport and use. This makes the axial cyclone easier to manufacture and repair and easier to realize. The treatment mud such as carbon dioxide, the crude mud added with the additive or the pretreated mud enters through the inlet main pipe 46, branches into a plurality of axial cyclones 7, and is given a shearing force and a swirl by the blades. The earth and sand are discharged from the peripheral gap 148 and flow down into the tank. Cover 87 as shown in FIG. 54 to prevent blowing up.
Can be covered or fixed. The device can also be submerged in the liquid.

[0051]

[Embodiment 33] FIG. 55 shows a surface renewal promotion tube or a heat transfer promotion tube in which a spiral 352 is provided on the inner surface of the heat transfer surface 350 or the lower surface. The body flow membrane improves the efficiency of material renewal, that is, absorption, light irradiation, heat transfer, etc., and evaporation ability related to the material renewal, that is, the surface boundary membrane, since the inner surface of the spiral and the leak flow flow on the tube surface side. Conventionally, there is a Linde tube which has an ability of 2 to 10 times that of a normal falling film evaporator, which has good heat transfer, as a heat transfer promotion tube having an uneven surface, but the outer surface processed tube can be easily manufactured by various methods. However, when it was necessary to process the inner surface, it was difficult to process and difficult to use. The present invention inserts the spring in a stretched state,
By contracting this, it is possible to easily process the unevenness or the spiral which is in full or partial contact with the inner surface of the pipe without cutting a screw. The spiral cross section is slightly atypical, for example, an ellipse,
If it is deformed into a corner, a stable gap can be provided between the inner surface of the tube and the spiral. It can also be fastened to the inner surface of the pipe by spot welding or the like. Conventionally, the falling film device cannot be used for suspension or muddy water treatment because of the deposition of particles on the heat transfer surface. The thus-fabricated facilitation tube was problematic because particles were more likely to deposit. Conventionally, there have been devices for scraping the inner surface of the heat transfer surface, but none of them are complicated and effective, and easily remove light adhesion or viscous disorder that easily peels off. However, as a result of research, it was discovered that the liquid from which soil and sand were separated can be used with low power by rotating, vertically moving or particularly vibrating the inner spiral. This seems to be due to the cleaning of the inner surface of the tube and the expression of thixotropy due to the vibration of the highly viscous material of concentrated particles. An internal spiral or a spring weaker than the internal spring is connected to the upper part of the spiral, and a weight 7 is attached to the lower end of the spiral.
Lowering 9 to cause vibrations as a spring pendulum saves power in particular. The rod 363 is a transmission rod for rotational driving. Due to the characteristics of the spring, the spiral of the inner surface of the tube is smoother than the outer surface of the tube, so that the adhered matter can be easily removed by a straight line or a rotational movement. This is because the diameter of the inner surface spiral can be easily reduced when a force is applied. In the case of an external spiral, the surface of the falling film can be easily renewed by expanding or contracting while giving rotation, or by making the spiral diameter expand and contract repeatedly.
Can be cleaned or scraped. A relatively weak spring 353, which is mainly used for upper and lower elastic vibrations, suspends the internal spring 352 by a suspending tool 364 and vibrates by a fluid or an electromagnetic drive function 355 through an elastic component 354 which may be a leaf spring or the like. The vibration may be intermittent or manual. The liquid or suspension supplied from the inlet pipe 1 flows down in the form of a film on the inner surface of the pipe 350 by various known distributors 364. The heating fluid that exchanges heat enters the jacket 2 through 357, rises through the gap 356, and exits through the outlet pipe 358. The falling film is heated while renewing the film due to turbulence due to the spiral, is collected by the weir 362, and exits from the outlet 359. No 5
6 corresponds to a BB cross section. However, a case where a spiral is also wound on the outer surface of the pipe 352 is shown. It is also possible to heat the underflow surface with a heat medium such as steam, and in this case, it operates as a heat transfer promotion evaporation tube.

[0052]

[Embodiment 34] FIG. 56 shows an ozone dissolving or sterilizing apparatus comprising an ultraviolet ozone lamp 365 and a falling film apparatus 300. It can also be used as a deodorizing device. Since the surface film is renewed by the insertion of the spiral, it can be used for the ultraviolet sterilization of a suspension or mud having a lower ultraviolet transmittance than water. The liquid or suspension enters from the supply pipe 1 and the distributor 4 to the packed bed 366.
It flows down while absorbing ozone at the umbrella 371 and the distributor 364.
To form a falling film. It is appropriate that the distance from the inner surface of the stainless steel pipe 350 to the ultraviolet lamp or ozone lamp is within 50 to 60 mm which is the effective distance for ultraviolet irradiation and ozone generation. Although the vibrating machine 60 prevents the particles from being blocked, it is preferable that the lamp 365 is independent so as not to vibrate. Even in the case of a suspension, there was no blockage of the device, and Example 1
Similarly, a bactericidal or bacteriostatic effect was observed. The operating temperature affects the effect, but the temperature can be adjusted by the water jacket 356.

[0053]

[Embodiment 35] FIG. 58 shows a falling film type large area heat exchange apparatus suitable for heat exchange of a large amount of liquid, suspension or sewage. The heat transfer surface 350 of the ordinary steel or stainless steel thin plate may be a curved surface or a corrugated plate, and may be made lightweight. Distributors 364 are provided on both sides of the heat transfer surface to sandwich a thin plate and also serve as reinforcement. The cold fluid inlet 364 at the inlet of the hot fluid 363 enters the distribution chamber on the opposite side and flows down into parallel flow contact. Vibrator 6 for suspension
Use 0. By connecting the unit devices in series, an effect close to countercurrent heat exchange can be obtained. In order to increase the vibration effect, the connection with the bath is a rim 373 for preventing lateral flow of the heat transfer surface.
Can be used for loose fixing. 373 may be fixed to either the heat transfer surface or the tank. In FIG. 59, one of the fluids passes once and the other contacts a plurality of times, and an effect equivalent to countercurrent heat exchange is obtained. Supports for vibration 36
Nine communicates with the vibrator by analogy with rod 368. The multiple-passage side enters from the lowermost stage supply port 1, flows down the lower part of the heat transfer surface 350, is supplied to the middle stage falling film by the lower stage pump 6, and then is interrupted by the uppermost stage falling film by the middle stage pump. The heat transfer device can be assembled as shown in FIG. 58 to easily improve the economical efficiency of large capacity heat exchange.

[0054]

[Example 36] Organic substances attached to particles begin to undergo thermal decomposition and oxidation at around 240 ° C, and near 350 to 520 ° C for 1 minute to 10 minutes.
Burns at low temperature in 0 hours. A carbonaceous material such as activated carbon treated with muddy water or an inorganic adsorbent uses hot air containing excess air as a fluidizing gas in a steel fluidized furnace with an inner diameter of 200 mm and a height of 3 m.
It was regenerated at 10 ° C. for 10 to 60 minutes, and at 30 kg / hour, it was possible to regenerate at low temperature by flowing. It was possible to repeat with a yield of 97%. The sludge was heat-treated by the same apparatus at 280 ° C. for 10 minutes to be able to deodorize. The exhaust gas was treated with activated carbon adsorption. The odor from the organic sludge was sucked in, and the low temperature combustion deodorization was possible while regenerating the activated carbon with the fluidized activated carbon regenerator. After long-term treatment of organic sludge or organic matter-adhered sediment, after heating, it was allowed to stand, treated in a heat-insulated state or in a heat-supplemented state by intermittent flow, carbon was incinerated, and visually confirmed. In the mass accumulation process, after heating, the required temperature can be maintained by supplying air and, if necessary, combustible substances.

[0055]

EFFECTS OF THE INVENTION The reaction or operation of adding chemicals or materials to a liquid-suspended substance such as muddy water or a gel solution such as sludge takes a low efficiency and a long treatment time in the conventional method, but the present invention treats it with muddy water. Chemicals, pH adjusters, disinfectants, and other additives alone or in coexistence to apply shearing force for simultaneous dispersion in muddy water for separation, or multiple different treatments, for example, rapid separation and sterilization treatment under conditions of lowering pH However, after a predetermined period of time, it is possible to promptly raise the pH to a suitable level again, and even if the optimum processing conditions and the optimum storage conditions are different, high efficiency can be achieved simultaneously or sequentially regardless of the arbitrary and relatively small device. , Reaction or disinfection and separation are processed in a good dissociation state to facilitate dehydration of separated sediment components,
It can be pH adjusted or disinfected. The specific gravity of the treated mud water decreased, and it became harmless or stabilized. Even the fine particles that have settled down are dehydrated while being densified by the centrifugal action of the cyclone, so that soil formation is promoted. Circulating aeration of the treated muddy water becomes easy and the growth of harmful microorganisms can be prevented. In addition, it is possible to add chemicals and aerate with less power consumption. When required for treatment, carbonaceous adsorbents such as activated carbon, low temperature oxidation regeneration of inorganic adsorbents, low temperature oxidative deodorization, water, mud purification, exhaust treatment are simplified, drilling including similar low temperature heat treatment,
A relatively low cost, low pollution equipment suitable for dredging sludge treatment, and a method and equipment suitable for individual site treatment have become possible.

[Brief description of drawings]

FIG. 1 is an elevation cross-sectional explanatory view of a device for treating and purifying mud, sludge, muddy water, and stabilized muddy water.

FIG. 2 is a side view cross-sectional view of FIG.

FIG. 3 is a sectional view of a sediment separating tank or a sedimentation tank having a gravity-controlled self-operated valve.

FIG. 4 is a plan view of FIG.

5 is an explanatory view of another example of the specific gravity control weight corresponding to the elevation view of FIG.

FIG. 6 is a cross-sectional explanatory view of a separation tank and a dehydrator having an automatic sediment discharge valve provided on the lower side wall.

FIG. 7 Sediment separation tank with a built-in parallel slope plate settling device.

FIG. 8 is a side view cross-sectional explanatory view of FIG. 7.

FIG. 9 is an elevational explanatory view of the flow path switching device for the drooping discharge pipe.

FIG. 10 is an explanatory plan view of the flow path switching device for the drooping discharge pipe.

FIG. 11 is an elevational view of a flow path switching device for a horizontal discharge pipe.

FIG. 12 is an explanatory plan view of a flow path switching device for a horizontal discharge pipe.

FIG. 13: Cylinder operating device for the discharge pipe.

FIG. 14 is an elevation sectional view of FIG.

FIG. 15 is a sectional view of a bentonite muddy water storage tank water surface shielding film spreading device at an area ratio.

16 is a plan view corresponding to the circular tank of FIG.

FIG. 17 is a plan view corresponding to the rectangular tank of FIG.

FIG. 18 is a diagram of an axial flow swirl type mixing device.

19 is a sectional view of FIG.

FIG. 20 is a side view of an axial cyclone.

FIG. 21 is an explanatory cross-sectional view showing the insertion fixing chamber of the replaceable blade.

FIG. 22 is a cross-sectional explanatory view showing the insert fixed chamber of the replaceable blade and a different type blade.

FIG. 23 is an explanatory view of a dehydrating sieve and an intermediate tank suitable for mounting on a vehicle.

FIG. 24 is a plan view of a dewatering sieve having a weir, a divided flow path, and a spherical floating valve. ．

FIG. 25 is a plan view of a dehydrating sieve having a weir, a divided flow path, and a cylindrical floating valve.

FIG. 26 is a side view showing a weir of a dewatering sieve.

FIG. 27 is an explanatory view of a dehydrated sieve surface having a weir opening mechanism.

FIG. 28 is a cross-sectional explanatory view of a dewatering vibrating screen device having a parallel slope plate sedimentation device.

FIG. 29 is a cyclone having an insertion tube for wear failure prevention and a specific gravity control mechanism.

FIG. 30 is an explanatory view of a cross section of a dewatering vibrating screen having a vibration distribution mechanism and a parallel slope sedimentation device.

FIG. 31 is a vertical cross-sectional view of a multi-stage axial flow cyclone having an intermediate take-out function.

FIG. 32 is a vertical cross-sectional view of an enlarged cross-sectional multi-stage axial flow cyclone having an intermediate take-out function.

33 is a side view taken along the lines AA and BB in FIGS.

FIG. 34 is a diagram showing an example of a fixed blade for turning.

FIG. 35 is a vertical cross-sectional view of a normal cyclone having a side-stream extraction mechanism.

FIG. 36 is a cross-sectional view as seen from the bottom to the top of FIG. 35.

FIG. 37 is a cross-sectional explanatory view of a vibration fluidization moving mechanism of plate surface and tank bottom sediment.

38 is a plan view of the oscillator shown in FIG.

FIG. 39 is a movable weir having a float function. Cross-sectional view of dehydration vibrating screen with lump dividing function.

FIG. 40 is an explanatory diagram of a collection / delivery, storage, processing, and usage system.

FIG. 41 is a cross-sectional explanatory diagram of a dewatering vibrating screen having a filtration surface and a float weir.

42 is a plan view of FIG. 41. FIG.

FIG. 43 is a mobile processing device.

FIG. 44 is a cross-sectional explanatory view in which a sand pump is installed in a baffle device having a muddy water inlet and a sand pump inlet.

45 is a plan view of FIG. 44.

FIG. 46 is a vibration transmission switching device.

FIG. 47 is a vibration transmission switching device for different devices.

FIG. 48 is a three-dimensional explanatory view of a muddy water tank accommodating a cyclone device.

FIG. 49 is a side sectional view of a mud tank containing a dehydration vibrating screen.

FIG. 50 is a mobile processing device.

FIG. 51 is a vertical sectional view of the mixer.

FIG. 52 is an elevational explanatory view of a mud / muddy water mixing / dissolving apparatus.

FIG. 53 is an explanatory plan view of an axial flow type multi-clon.

FIG. 54 is an explanatory side view of an axial flow type multi-clone.

FIG. 55 is a cross sectional explanatory view of a spiral falling film device.

FIG. 56 is a plan view showing the spiral falling film device.

FIG. 57 is an explanatory sectional view of the ultraviolet-ozone processing apparatus.

FIG. 58 is an explanatory view of a parallel plate falling film heat exchanger.

59 is a cross-sectional explanatory view of a countercurrent falling film heat exchanger corresponding to FIG. 58. FIG.

[Explanation of symbols]

1 Supply pipe. 2 separation tanks. 4 distributors. 5, 15 Vibrating sieve. 6, 16, 26 Submersible sand pump. 7, 17, 2
7, 47 Cyclone. 8 Outflow control device. 9 Dewatering vibrating screen. 10, 20, 30 Hydrometer. 11, 12, 21
Automatic or manual swing type cut-off channel switching device. 18,
28 Adjustment device. 19, 29 Gutter. 40 Perforated tube. 42
Stirring mechanism. 45 grid-like vibrating body. 53 Box-shaped or weir-shaped subdivisions. 60 Vibrator 61 Injecting device or nozzle for pH adjusting agent such as carbon dioxide. 6
2 Disinfectant injection device. 62 Disinfectant injection system. 63 injection mechanism. 71 Automatic gravity valve. 79 floats, weights. 86 Adjustment motor. 89 Buffer materials such as springs. 99 inclined plate. 10
1 Activated carbon fluidized adsorption device with stirring device. 102 water washing and acid treatment equipment. 103 dry system. 104 fluidized low-temperature oxidation regenerator. 111 distributor. 123 units. 12
5 Control cylinder. 136 winding motor. 138
Take-up roll. 142 Insertable swirl vane. 15
5 Equipment stand. 156 retractable leg. 157 fixing device. 158 retracting piston. 160 Mud dividing function 16
0.161 weir. 162 floating valve structure. 64 chassis. 1
66 axles. 190 fixing mechanism. 190 Side flow channel for taking out separated particles 192 Slits provided in the peripheral portion. 200 sediment. 24
4 Vibration transmitter 284 Water or muddy water inlet. 350 heat transfer surface. 352
Spiral. 364 distributor.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication C02F 1/50 520 J 9045-4D 531 R 9045-4D M 9045-4D 540 A 9045-4D 550 H 9045-4D 560 A 9045-4D B 9045-4D C 9045-4D 1/72 Z 101 1/76 A 1/78 ZAB

Claims (36)

[Claims] [Claim 1] In a process of collecting mud water or mud generated by excavation, dredging or soil purification work from the construction site and separating earth and sand with a treatment facility, purifying the separated mud water or water, or reusing it for construction , A method of treating suspended water or mud in which water or muddy water containing fine particles is subjected to a treatment selected from sterilization, bacterial suppression treatment or adsorption purification. 2. The suspension water or mud treatment method according to claim 1, wherein the construction is on-site pile construction or underground continuous wall construction, and a pH adjusting substance or sterilization or microbial control treatment is carried out before or after sediment separation. 3. The sterilization or bacteriostatic treatment comprises one or a combination of two or more selected from heating, ozone, ultraviolet irradiation, peroxide, active oxygen, an inorganic chlorine-based bactericide or a chloric acid compound. The method for treating suspended water according to 1 or 2. 4. A method of adsorbing fine particle suspension water or washing mud water from which sediment has been separated with a carbonaceous adsorbent, or reusing the carbonaceous adsorbent contacting soil directly or through a partition wall by low-temperature oxidation to reuse. Item 4. The method for treating suspended water or mud according to item 1 or 3. 5. A liquid cyclone having two or more stages for classifying particles while adding to or after adding to mud or mud one or more combinations selected from an acidic substance, carbon dioxide gas, a dispersant and a bactericide. And a device comprising one or more vibrating screens, which comprises (1) an operation of purifying separated muddy water or separated water with a carbonaceous adsorbent, and (2) low-temperature regeneration of the used carbonaceous adsorbent. Muddy water or sludge treatment method. 6. The suspended water or muddy water treatment device according to claim 1 or 3, wherein the heat treatment heat-exchanges heat with a heat transfer surface to which continuous or intermittent vibration is applied. 7. The method for treating suspended water or mud water for excavation according to claim 1, wherein sterilization treatment and adsorption treatment are used in combination. 8. A vertical rib or a vertical line-shaped object and a vibrating screen surface for a concentrated discharge product or a direct supply mud product downstream of a cyclone that discharges a water-containing sediment flow or mud in a dewatering screen for separating mud water or sediment or component particles from mud. A break or gap in the vicinity,
Dewatering vibrating screen fed over a screen with a floating valve that fits in cuts or gaps. 9. A cyclone for separating sediment from muddy water or sludge, wherein the cyclone downstream discharge part for discharging a water-containing sediment flow is provided with an inner wall protection pipe. 10. A manual or automatic flow path control device for changing a flow path by swinging an outflow pipe or a flow guiding function at a mud or muddy water outlet. 11. A method for purifying muddy water, which comprises performing ozone treatment or aeration treatment with a perforated plate falling film apparatus after treatment with a liquid cyclone or a mixer in muddy water treatment. 12. A method for analyzing a volatile component of muddy water, which comprises injecting a gas near a muddy water pump or a cyclone, bringing the gas into contact with muddy water, and then applying this gas to an analyzer. 13. An enlarged baffle structure having a suction port and a submersible pump mounting port. 14. The apparatus according to claim 1 or 8, wherein in the dewatering operation of the muddy water treatment, the separated sediment or mud is individually dehydrated or treated as a mixture of particle groups. 15. A storage or treatment device for suspended water, comprising a membrane floating roof or a shield that moves in contact with the water surface in the storage operation of treated mud water for excavation. 16. An apparatus for storing or treating suspended water or muddy water, which covers the water surface with a rubber or plastic sheet or film shield having a specific gravity of about 1 in the storage operation of the treated mud water for excavation. 17. A muddy water treatment device comprising a stationary vane for imparting an axial swirling motion of a water flow to a tubular or tubular passage, a gas or chemical introduction function near the center of swirling of the water flow, and a liquid cyclone. . 18. A cyclone device, which is an axial flow or normal cyclone device in which one or more side flow outlets are provided in the cyclone. 19. A mud water treatment apparatus, wherein a plurality of fluids having a fixed blade for giving an axial swirling motion of a water flow to a tubular or tubular passage and a mud, gas or chemical introduction function near the center of swirling of the water flow. Mixing device. 20. A cyclone device in which a plurality of axial-flow cyclones are connected between main pipes at the entrance and exit. 21. A vibrating dewatering sieve of mud or muddy water, comprising a weir having a gap near a contact surface with the sieve and an opening / closing valve for closing the gap but floating by the dewatering mud. 22. A vibrating dewatering sieve of mud or muddy water, wherein a slanting plate of muddy water or a honeycomb sedimentation device is provided below the sieve. 23. A liquid-type sedimentation device comprising a liquid distribution device and a sedimentation function provided with an inflow port for each inclined plate or honeycomb near the water surface. 24. A liquid-type sedimentation device, which has a vibration system for continuously or intermittently vibrating one or a combination selected from a liquid distribution device, a sedimentation function, a tank oscillator, and a bottom plate. . 25. The separation apparatus according to claim 24, wherein the vibration source is a vibrating screen or a vibration motor, and the vibration is continuously or intermittently applied by a releasable vibration system coupling mechanism. 26. A vibrating fluidizing device or a sediment moving device, which automatically or manually switches a releasable vibrating system coupling mechanism and repeats sequential coupling-releasing operations of a vibrating source and a group of vibrating objects. 27. The suspended water or mud treatment device according to claim 3, comprising a falling film device and an ozone generator or an ozone lamp. 28. A falling film device for flowing down a liquid or a suspension, comprising a liquid distribution device, a tube, and a spiral line inserted along the tube wall. 29. A falling film apparatus in which a spiral wire is supported by a spring or a suspension structure, and a weight function is provided at a lower end thereof, and which is mechanically or electrically movable vertically or rotationally. 30. A falling film heat transfer device for arranging flat plates, bent plates, corrugated plates or curved plates in close proximity to each other and flowing a liquid having a temperature difference on both surfaces of each plate. 31. The falling film heat transfer device according to claim 30, wherein the lower surface of the falling film is provided with a lower surface composed of a plurality of pairs of distribution devices and a collecting portion, and the lower fluid is sequentially sent to the upper step. 32. A device selected from a muddy water or mud supply mechanism, a vibrating screen, a dehydration vibrating screen tank, a pump, a cyclone and carbon dioxide gas or a processing chemical supply device, and a filter dehydrator is unitized into one or more units. The processing device according to claim 1, 33. A water or muddy water supply mechanism, a vibrating screen, a cyclone, a tank, a dehydrator, a pump, a vapor phase or liquid phase adsorber and a fluidized low-temperature oxidation regenerator for a carbonaceous adsorbent or an inorganic adsorbent, sludge or organic matter adhesion. A plant that combines one or more devices selected from a low temperature soil combustion or heat treatment device and a gas phase low temperature oxidative deodorization device. 34. The processing apparatus according to claim 32, wherein the processing apparatus is mounted on a chassis and fixed, or detachably fixed. 35. A vehicle comprising a chassis on which the device according to claim 32 or 33 is mounted and a retractable leg for supporting and fixing the frame or tank on which the device is mounted on the ground. 36. Intake exhaust gas from an exhaust system selected from a combustion furnace, an incinerator, an in-vehicle engine or an engine generator,
8. The apparatus according to claim 5, wherein the heat source for sterilization, the heat source for regenerating the activated carbon or the carbonaceous adsorbent, or the fluidizing gas for regeneration is used.