JP4117342B2 - Sewage purification equipment - Google Patents

Description

[0001]
OBJECT OF THE INVENTION
The present invention relates to a contaminated water purification technology for purifying sewage discharged from various facilities to a state where it can be discharged into the natural environment, and in particular, efficiently discharges wastewater containing a large amount of solid matter. It is an object of the present invention to provide a sewage purification apparatus having a novel structure capable of rationalizing maintenance management and cleaning work by performing purification treatment.
[0002]
[Prior art]
In Japan, while promoting public sewage laying policies, for a while, for various facilities and general households in areas where public sewage is not yet complete, the installation treatment of suspended sewage treatment, single treatment septic tanks, combined treatment septic tanks, etc. These independent septic tank facilities are required to have regular maintenance inspections and maintenance duties on their managers (installers), regular legal inspections, etc. Guidance is provided by public health centers and related organizations to properly manage the quality of wastewater discharged into the natural environment.
[0003]
In particular, with the development of the transportation network that connects cities, recently, suburban large-scale shopping centers that can secure a relatively large sales area and a parking lot compared to the shopping districts in the city center have opened one after another. New markets are being developed, and these large commercial facilities are lined with a wide variety of stores, and the wastewater generated from these stores is mixed with a large amount of dredging from the supermarket kitchen. The amount of foreign matter is much larger than general domestic wastewater, and it is a general maintenance inspection. However, even after cleaning and collecting all the wastewater and sludge in the septic tank, the scum and sludge accumulated in the septic tank in a relatively early stage. Na Must be frequently carried out, it had become a thing to be strong significant economic burden for management officer.
[0004]
Therefore, since it is necessary to efficiently remove the filth including solid matter in the waste water flowing into the septic tank in the septic tank, for example, containing soot disclosed as the invention of JP-A-8-10792 A sewage treatment apparatus, a filtration apparatus such as sewage and a dewatering filtration apparatus such as sludge according to the invention of JP-A-2-268805, or a hydrated solid matter drying apparatus proposed in Japanese Utility Model Publication No. 2-336640 However, all of the sewage treatment devices that have been developed so far have a relatively complicated structure, and the conventional septic tank facility must be reviewed and installed from the basic design. In other words, a relatively large amount of investment is unavoidable for implementation, and it has not yet reached widespread use.
[0005]
In view of the above situation of the conventional sewage purification treatment apparatus, the present invention cannot realize an efficient sewage purification treatment technique excellent in economic efficiency while ensuring sufficient purification treatment capability. As a result of deciding whether it is a thing or not, we started its development and research very quickly, and as a result of repeating trial and error over many years and many trials and experiments, this time we finally realized a new structure of sewage purification equipment In the following, the configuration will be described in detail together with an embodiment representative of the present invention shown in the drawings.
[0006]
[Structure of the invention]
As clearly understood from the embodiments representing the present invention shown in the drawings, the sewage purification apparatus of the present invention basically comprises the following configuration.
In other words, the upper part in the primary treatment tank that is directly under the inlet in the sewage inflow path is detachably accommodated with a filter bowl capable of roughly filtering the incoming sewage, while the lower end is submerged near the bottom in the primary treatment tank. An appropriate position between the upper end of the pipeline and the upper end of the discharge pipe having the lower end disposed in the same secondary treatment tank, the secondary treatment tank next to the primary treatment tank, or the treatment tank below the secondary treatment tank. In addition, a pump capable of pumping up sewage containing sediment, a centrifugal separation mechanism capable of centrifuging sewage sediment sucked up from near the bottom of the sewage treatment tank, and an oil-water separation mechanism capable of separating oily components in sewage It is the sewage purification apparatus which makes a summary the structure formed by interposing and installing a section.
[0007]
In other words, this basic structure is expressed in a different manner, and in the upper part of the primary treatment tank immediately below the inlet in the sewage inflow path, a filter trough capable of roughly filtering the inflowing sewage is detachably accommodated, while the primary The upper end of the suction line with the lower end submerged in the vicinity of the bottom of the secondary treatment tank next to the treatment tank, or the vicinity of the bottom of the treatment tank below the secondary treatment tank, and the same primary treatment tank or the same secondary treatment tank A pump capable of pumping up sewage containing sediment and centrifuge the sewage sediment sucked up from the bottom of the sewage treatment tank at a suitable location between the upper end of the discharge pipe with the lower end of the treatment tank below. It can be said that this is a sewage purification apparatus having a configuration in which a possible centrifugal separation mechanism part and an oil / water separation mechanism part capable of separating oily components in sewage are interposed and installed.
[0008]
For coarse filtration of cocoons, etc. with a filter basin, a filter basin dedicated to the basin is installed just below the inlet in the sewage inflow path from the kitchen, and only the wastewater from the basin flows into the filter basin. The filter should be coarsely filtered, removed by filter, and the collected soot should be disposed of as raw garbage. For example, the wastewater in the combined treatment septic tank, the bathroom wastewater, or the sewage wastewater, etc. It is desirable to place only the kitchen sewage into the filter tank, depending on the type of drainage. It is possible to install a filter bowl dedicated to laundry waste, a filter bowl dedicated to hair, etc., as well as a hair catcher, sand catcher, oil catcher etc. to the corresponding drainage inlet And location, it is possible to performs appropriate purification treatment in accordance with the type of inflow waste water.
[0009]
The sewage septic tank is a single treatment septic tank that only stores manure sewage after temporarily storing contaminated wastewater and purifying it to a level that does not affect the natural environment by purifying it appropriately. , Wastewater containing radioactive isotopes discharged from hospitals, laboratories, research buildings, etc. A treatment tank equipped with a function that can withstand the practical use of sewage treatment is sufficient, including special wastewater treatment tanks that purify alkaline wastewater by the attenuation method, dilution method, concentration method (coagulation sedimentation, evaporation, ion exchange), etc. Examples thereof include, for example, a separation contact aeration method, a separation aeration method, a sprinkling filter bed method, and the like.
[0010]
The primary treatment tank performs the function of first storing and temporarily storing contaminated wastewater flowing into the sewage purification tank through the sewage inflow route, and mainly promotes sediment separation of contaminated wastewater by avoiding intense flow. Accumulated solids and other pollutants contained in the sewage near the bottom of the treatment tank, and can be collected at the time of cleaning every predetermined period. In order to ensure sufficient capacity for sedimentation and separation, it is necessary to ensure sufficient capacity for sedimentation and separation. However, it is desirable to form it so as to move it, but it is also possible to install a pump as appropriate so as to forcibly supply the sewage that has reached a certain amount to the secondary treatment tank.
[0011]
The secondary treatment tank contains sewage that is temporarily stored in the primary treatment tank to precipitate and separate contaminated foreign substances, and is further purified using aerobic or anaerobic microorganisms, neutralization, aggregation, precipitation, etc. For example, a separation contact aeration method using a contact material and an air diffuser, or a purification process using aerobic microorganisms by a separation aeration method using an aerator or the like shall be performed. It is possible to accumulate the pollutants generated by the purification treatment near the bottom of the treatment tank so that they can be collected at the time of cleaning every predetermined period, and sufficient capacity is provided according to the amount of contaminated wastewater flowing from the primary treatment tank. It must be ensured, and it can be formed so that the sewage that has become a supernatant after separation of the mixed foreign substances is overflowed and moved to the next treatment tank.
[0012]
The treatment tank below the secondary treatment tank has a function to temporarily store the sewage supplied from the secondary treatment tank and further purify it to a level that can be released into the natural environment by promoting purification treatment. The sewage supplied from the secondary treatment tank is temporarily stored and subjected to purification such as precipitation, separation or neutralization, agglomeration, etc., similar to the secondary treatment tank, or finally. As in the case of the primary treatment tank and the secondary treatment tank, it is necessary to ensure a sufficient capacity according to the amount of sewage flowing into the tank.
[0013]
Filter dredging is performed by roughly filtering the contaminated water flowing into the sewage septic tank from the sewage inflow path, scavenging solid matter of a predetermined size or larger, and continuing to accumulate and pretreating the sewage flowing into the septic tank, In addition to reducing the amount of foreign matter that settles in the treatment tank to be installed, the accumulated solid matter can be properly recovered and disposed of as garbage. It should be detachably placed directly under the inflow port, and can be used to filter solid materials of a predetermined size or larger, such as a metal mesh, screen, punching metal, etc., made of a relatively excellent corrosion-resistant metal such as stainless steel or brass. Or it can be a net fence made of synthetic tree-molded products, etc., and in order to prevent damming due to clogging, the upper part of the fence is levitated above the sewage surface in the treatment tank Both can be installed in a state where the lower side is submerged in the sewage in the treatment tank, and the recovered solid matter can be maintained in a state submerged in the water to prevent the occurrence of spoiled odors and the like. Outside, the entire filter basin is floated on the surface of the water to promote dehydration and drying, or only the part where the drainage inlet is connected is opened and the outer wall is closed In addition, a discharge port for taking out the collected solid matter can be provided so as to be openable and closable, and a structure that can reliably prevent leakage of the collected solid matter into the treatment tank can be obtained.
[0014]
The suction line has a function to forcibly pump small solids and sewage of less than a predetermined size that could not be filtered by passing through the filter trough from the sewage septic tank, and supply it to the contaminated foreign matter separator. The lower end is opened near the bottom of the septic tank to be sucked up, and it is possible to pump up preferentially without unnecessarily stirring sewage that has been separated by sedimentation and has increased density. It should have a structure, and it is possible to extend the pipe body from the upper part of the septic tank to be sucked up to the vicinity of the bottom part. It is possible to connect to the vicinity and open the bottom of the septic tank.
[0015]
The pump has a function of forcibly pumping small solids and sewage of a size less than a predetermined size that could not be filtered by passing through a filter trough from the sewage septic tank and pumping them toward the centrifugal separation mechanism and the oil / water separation mechanism. It must be capable of pumping and pumping sewage even if it is contaminated with some solid foreign matter without any problem. Specifically, plunger pumps, piston pumps, etc. Reciprocating pumps, vane pumps, rotary pumps such as three-leaf pumps, volute pumps, centrifugal pumps such as turbine pumps, axial pumps with propeller-type impellers, special pumps such as Wesco pumps, jet pumps, etc. Can be used.
[0016]
Centrifugal separation mechanism functions to separate mixed solids and sediments by applying centrifugal force to the sewage pumped from the sewage septic tank to be sucked up and purify the sewage. In addition to storing the wastewater, it can be structured to dewater by applying a centrifugal force with a mesh cage that rotates at a relatively high speed. In addition, the centrifugal force is applied to the pumped sewage flow to remove foreign matter having a specific gravity lighter than that of the water. It is also possible to collect and collect at the center and discharge only the water flowing on the centrifugal side.
[0017]
The oil / water separation mechanism functions to separate the oil and fat components contained in the sewage and purify the sewage, and various filters and filters that adsorb fat and oil, or sewage circulate at a slow speed. It is possible to use a catcher or the like that separates and collects oil solids that have cooled and solidified and floated on the water surface. A grease catcher or an oil catcher can also be used.
[0018]
The discharge pipe fulfills the function of supplying and returning the wastewater purified by sequentially passing through the centrifugal separation mechanism and the oil / water separation mechanism into the purification tank. It should be placed in any appropriate place and formed to flow down by the pumping force of the pump or the weight of the drainage, and should have a pipe diameter that is substantially the same as the suction pipe. In order to prevent the water stored in the processing tank from flowing backward, it is desirable to have a pipeline structure opened above the water surface of the supply destination processing tank.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.
[0019]
[Example 1]
In the example shown in the sectional view of the sewage purification apparatus in FIG. 1, a filter trough 3 capable of roughly filtering incoming sewage is detachably accommodated in the upper part of the primary treatment tank 2 immediately below the inlet 21 in the sewage inflow path. And the sewage purification | cleaning included by this invention which consists of a basic structure which arrange | positions the mixing foreign material separator 6 for the septic tank which has the centrifugal separation mechanism part 63 and the oil-water separation mechanism part 64 in the appropriate place after this primary treatment tank 2 A typical embodiment of the apparatus 1 is shown.
[0020]
The basic structure of the sewage purification apparatus 1 is that the inlet 21 of the sewage inflow path that is discharged from the kitchen is connected to the upper part, and the stored sewage is temporarily stored to be contained in the drainage. Primary treatment tank 2 capable of precipitating and separating foreign substances and contaminants, and the secondary water that overflows and moves the supernatant water of the primary treatment tank 2 and promotes purification treatment of the stored wastewater by the action of aerobic microorganisms The treatment tank 4, and further, the supernatant water that has overflowed and moved from the secondary treatment tank 4 is accommodated and brought into contact with a chlorinating agent, etc., so that it can be discharged into the natural environment and subjected to disinfection in order. It has a tertiary treatment tank 5 formed so as to be drained naturally so as to overflow or to be drained by forced pumping when a predetermined amount is reached.
[0021]
In the vicinity of the inlet 21 in the upper part of the primary treatment tank 2, stainless steel having a bottomed cylindrical shape having an opening in the upper part, and a large number of through-holes of about several mm to 1 cm are perforated on substantially the entire peripheral wall surface. The filter cage 3 made of a metal net or screen can be lifted and taken out of the primary treatment tank 2, temporarily fixed in a state where the lower part is submerged in water and the upper part is floated on the water surface, It is assumed that the kitchen drainage flowing in from the inlet 21 passes through the filter bowl 3, and a lifting bracket connecting portion or a handle (not shown) is provided at an appropriate position.
[0022]
Further, the lower end is immersed in the vicinity of the inner bottom of the primary treatment tank 2, the upper end and the lower end of the suction pipe 61 extending to the upper side of the primary treatment tank 2 are opened on the tertiary treatment tank 5, and extended upward. A centrifugal separation mechanism 63, a pump 62, and an oil / water separation mechanism 65 are sequentially connected to the discharge pipe 66 from the upstream side close to the primary treatment tank 2, and the contaminated foreign matter separator 6 for purification treatment is connected. Is forming.
[0023]
The centrifuge mechanism 63 is vertically connected by an external drive motor 64 in a sealed container in which the upper end of the suction pipe 61 is connected to the center of the top surface, and the drain pipe connected to the pump 62 is connected to the lower part. It contains a basket that is driven to rotate around its axis, and is formed so that solid matter smaller than the foreign matter accumulated in the filter bowl 3 is retained in the basket and only moisture can be moved to the pump 62 side. The solid matter separated and collected from the sewage by centrifugal force and accumulated is a structure that can be removed from the basket and disposed of when it reaches a certain amount.
[0024]
The pump 62 is a rotary pump that can secure a sufficient discharge amount according to the capacities of the centrifugal separation mechanism 63 and the oil / water separation mechanism 65, and sucks up a pipe against the resistance generated in the oil / water separation mechanism 65. 61 and a centrifugal separation mechanism part 63 that exerts sufficient suction power and is automatically activated at regular intervals, and is combined to forcibly suck up sewage containing sediment near the bottom of the primary treatment tank 2 It is said.
[0025]
The oil / water separation mechanism 65 has a built-in filter that adsorbs oil components that are dissolved in water or adsorbed by passing the waste water from which most solid substances have been removed by the centrifugal separation mechanism 63. When the ability to adsorb decreases, the built-in filter can be replaced to restore the initial performance.
[0026]
[Example 2]
In the example shown in the sectional view of the sewage purification apparatus 1 in FIG. 2, the filter trough 3 is detachably accommodated in the upper part of the primary treatment tank 2 immediately below the inlet 21 in the sewage inflow path. Another embodiment of the sewage purification apparatus 1 included in the present invention comprising a basic configuration in which a septic tank mixed foreign matter separator 6 having a centrifugal separation mechanism 63 and an oil / water separation mechanism 64 is arranged at an appropriate position of It is shown.
[0027]
Since the installation structure of the primary treatment tank 2, the secondary treatment tank 4, the tertiary treatment tank 5, and the filter trough 3 is substantially the same as that of the above-mentioned embodiment, the sewage purification apparatus 1 omits the description regarding these portions and has a structure. Only the different foreign substance separators 6 for purification treatment will be disclosed below.
[0028]
The contaminated foreign matter separator 6 has a pump 62 connected to the upper end of a suction line 61 whose lower end is submerged near the inner bottom of the tertiary treatment tank 5 and extended to the upper side of the tertiary treatment tank 5. The centrifugal separation mechanism 63 and the oil / water separation mechanism 65 are sequentially connected to the downstream side of the pump 62. Downstream In addition, the lower end is formed by connecting the upper end of the discharge pipe 66 opened on the tertiary treatment tank 5.
[0029]
The pump 64 is a rotary pump that can secure a sufficient discharge amount according to the water flow capacity of the centrifugal separation mechanism 63 and the oil / water separation mechanism 65, and is near the bottom of the tertiary treatment tank 5 through the suction pipe 61. The sewage containing sediment is intermittently and forcibly pumped up, and is combined to release the sewage against the resistance generated by the subsequent centrifugal separation mechanism unit 63 and the oil / water separation mechanism unit 65. It is automatically controlled to start up.
[0030]
The centrifuge mechanism 63 has an externally driven motor in a sealed container formed by connecting a water supply line from the pump 64 to the center of the top surface and connecting a drain line leading to the oil / water separation mechanism 65 to the lower part. 64, which accommodates a basket that is rotationally driven around a vertical axis, holds solids smaller than foreign matter accumulated in the filter bowl 3 in the basket, and allows only moisture to move to the pump 62 side. The solid matter separated, collected from the wastewater and accumulated is dehydrated and dried by centrifugal force when the pump 64 stops water supply, and when it reaches a certain amount, the solid matter is taken out from the basket. It is a structure that can be processed as. The oil / water separation mechanism unit 65 has a built-in exchangeable filter that adsorbs the oil / fat component that dissolves in the passing sewage or floats.
[0031]
[Action]
In the sewage purification apparatus 1 representing the present invention having the above-described configuration, as shown in FIG. 1, sewage containing soot discharged from the kitchen is installed in the primary treatment tank 2 through the inlet 21. A relatively large tub that is a solid matter of several mm to 1 cm or more is filtered and collected by the filter tub 3 and the sewage that has passed through the filter tub 3 is temporarily stored in the primary treatment tank 2. In other words, the stored wastewater is washed away by the kitchen wastewater that flows in one after another, and is compressed into an integrated state to reduce the amount of waste.
[0032]
Even when the accumulation amount of soot gradually increases and reaches the upper side of the water surface of the primary treatment tank 2, the filter soot 3 installed so as to float on the water surface exhibits a sufficient filtering function. Thus, the soot accumulated in the filter soot 3 is discarded as raw garbage after the filter soot 3 is lifted from the primary treatment tank 2 and drained, and the filter soot is emptied. 3 is appropriately cleaned and installed again at a predetermined location of the sewage purification apparatus 1, and can be used for collecting the soot.
[0033]
In addition, relatively small soot and other foreign matters that have fallen without being collected by the filter soot 3 are gradually precipitated, separated and deposited near the bottom of the primary treatment tank 2, and the contaminants containing such deposits are If left as it is, it becomes sludge and must be collected and processed at the time of periodic cleaning by the management contractor of the sewage purification apparatus 1, but the pump 62 of the foreign matter separator for septic tank 6 is kept for a certain period of time. Each time it starts automatically, the drainage containing sediment is forcibly sucked through the suction pipe 61, and pumped and supplied into the centrifuge mechanism 63, thus receiving the drainage supply. The mechanism 63 rotates the basket built in by the driving force of the driving motor 64 that operates in conjunction with the activation of the pump 62 around the vertical axis, and keeps a relatively small solid matter in the basket to keep moisture. Only the centrifuging the.
[0034]
The waste water sent from the centrifugal separation mechanism 63 is forcibly supplied to the oil / water separation mechanism 65 by the pump 62, and the oil / fat components contained in the water are adsorbed by the built-in filter to separate the oil / water. After being purified, it is discharged to the tertiary treatment tank 5 through the discharge pipe 66, and the supernatant water overflowing and moving from the primary treatment tank 2 is purified by aerobic microorganisms in the secondary treatment tank 4, and The tertiary treatment tank 5 is overflowed and merged with the wastewater that has been moved.
[0035]
The wastewater merged in the tertiary treatment tank 5 is sterilized with a chlorine agent (not shown) to the extent that it does not affect the natural environment, and the well-purified supernatant water naturally overflows and is discharged outside the sewage purification apparatus 1. Will be.
Further, in the sewage purification apparatus 1 of FIG. 2, the sewage discharged from the kitchen is supplied to the filter tub 3 installed in the primary treatment tank 2 through the inlet 21 of the sewage inflow path, and a relatively large tub is recovered. The sewage that has passed is stored in the primary treatment tank 2. The soot accumulated in the filter soot 3 can be collected by lifting the filter soot 3 and disposed of as garbage.
[0036]
In the wastewater stored in the primary treatment tank 2, small solid matter gradually settles and separates and accumulates in the vicinity of the bottom, and the supernatant water is overflowed and moved to the adjacent secondary treatment tank 4, and the secondary The sewage moved to the treatment tank 4 is purified by the action of microorganisms, and the supernatant water overflows and moves to the adjacent tertiary treatment tank 5.
[0037]
In the septic tank mixed foreign matter separator 6 installed for the tertiary treatment tank 5, the pump 62 is operated at regular intervals to forcibly suck the sewage near the bottom of the tertiary treatment tank 5, and the centrifugal separation mechanism section. The centrifugal separation mechanism 63 that is pumped into the 63 and supplied with drainage rotates the built-in basket around the vertical axis by the driving force of the driving motor 64 interlocked with the pump 62, and a small solid matter is transferred to the basket. In this case, only the water is centrifuged and sent to the subsequent oil / water separation mechanism 65, and after the pump 62 is operated, if the control is performed to drive the centrifugal mechanism 65 for a while, the separated solid It is possible to reduce the amount of waste that must be disposed of after dehydrating the shape, and the oil / water separation mechanism 65 absorbs and removes the oil and fat components contained in the supplied wastewater by the built-in filter. Thus the oil-water separated, and be discharged to the tertiary treatment tank 5 via the discharge line 66 the purified waste water.
[0038]
As described above, when the wastewater that has overflowed and moved from the secondary treatment tank is stored in the tertiary treatment tank 5, it is pumped up to the septic tank mixed foreign matter separator 6 at regular time intervals. Purified supernatant after it has been cleaned by repeated circulation of slag containing fats and oils separated and removed and then disinfected by a chlorine agent (not shown) to the extent that it does not affect the natural environment. Water will naturally overflow and be discharged out of the sewage purification apparatus 1.
[0039]
【effect】
As described above, according to the sewage purification apparatus of the present invention, in the first stage where the contaminated water flows into the sewage septic tank from the sewage inflow path, the solid matter having a predetermined size or more is roughly filtered using the filter basket, Most of the solid matter that is difficult to be purified by microorganisms is removed in advance, and the small solid matter stored in the sewage septic tank is regularly pumped up and subjected to centrifugal separation and oil-water separation. After separating and removing small solids and fats and oils contained in the sewage septic tank, the sewage septic tank is completely re-introduced to prevent foreign substances from entering the sewage septic tank. Solid matter and oil components recovered by centrifugation, oil-water separation, etc. can be individually taken out and disposed of properly as general waste, and settled and deposited in the septic tank. If the amount of sludge is greatly reduced and wastewater containing a large amount of solid matter is to be purified, a large amount of sludge settles and accumulates in the sewage septic tank in a relatively early stage. In other words, large-scale cleaning work by a specialized management contractor must be frequently performed. However, the excellent effect that the frequency of such cleaning work can be remarkably reduced can be exhibited.
[0040]
Further, the sewage purification apparatus according to the present invention has a suction pipe in which a filter tub is detachably accommodated in an upper part of a treatment tank provided with an inlet of a sewage inflow path, and a lower end is submerged in the vicinity of the bottom of the treatment tank. By configuring the wastewater pumped up through the passage to the centrifugal separation mechanism and oil / water separation mechanism installed outside the treatment tank in order, and returning the purified wastewater to the treatment tank again through the discharge pipe, Since the basic structure of a conventional sewage septic tank facility can be used as it is, the existing construction technology can be used as it is even in the case of a new construction, and it is already in use. It can be completed relatively easily by attaching a filter bowl, centrifugal separation mechanism, oil / water separation mechanism, etc. to the existing purification treatment facility, and the main components are It has excellent features that it is economically advantageous because it is located near or outside the hall, so that inspection, maintenance and cleaning, and replacement work after aging are easy, and maintenance costs can be reduced. Can do.
[0041]
Furthermore, the solid matter or sludge that is gently separated and settled in the treatment tank by the suction pipe line with its lower end submerged in the vicinity of the bottom inside the treatment tank of the sewage purification apparatus of the present invention is stirred and roughened. Since it can be sucked up gently, it is possible to keep the supernatant water of the treatment tank to be installed clean and to maintain high purification capacity, and to separate and remove small solids by the centrifuge mechanism Later, oil and fat components are separated and removed by the oil / water separation mechanism, so that until now, most of the contaminants accumulated in the treatment tank can be pumped up and taken out, and exhausted as general waste. The frequency of large-scale cleaning work by the management contractor that must be carried out by pumping up all the sewage and sludge in the septic tank, Always reduce contaminants amount stored, the Xiu the effect that the cleaning capacity of the septic tank can be remarkably improved can be exerted.
[0042]
In particular, in the sewage purification apparatus 1 described in the embodiment, in addition to the above-described features, the upper part of the filter trough 3 floats above the sewage surface in the primary treatment tank 2 and the lower part is in the primary treatment tank 2. Even if the solid matter collected and accumulated in the filter basin 3 has accumulated up to the upper side of the sewage surface by being detachably installed in the state of being submerged in the sewage The drainage can be performed through the upper side of 3, and the occurrence of damming due to clogging can be prevented and the flow of drainage can be kept normal.
[0043]
In addition, if a special filter bowl 3 is installed at the inlet of the drainage channel of kitchen sewage discharged from the cooking room where a large quantity of dredging is generated, a large quantity of dredging that significantly reduces the purification treatment capacity is separated from the wastewater in advance. On the other hand, the sewage pumped up from the primary treatment tank 2 (tertiary treatment tank 5) by the contaminated foreign substance separator 6 is supplied to and passed through the centrifugal separation mechanism 63 and the oil / water separation mechanism 65. As a result, it is possible to separate and remove small solids and fats and oils contained in a large amount of soot, so that it is possible to maintain high purification treatment performance for a long time compared to conventional purification treatment facilities. Since the taken-out potatoes do not contain other pollutants, they can be normally disposed of as ordinary garbage.
[0044]
As described above, the sewage purification apparatus of the present invention makes it possible to achieve the intended purpose uniformly by its novel configuration, and is easy to manufacture, and particularly in comparison with conventional septic tank facilities. It is far more economical by drastically reducing the frequency of sludge collection and cleaning work by management contractors in large-scale factories, laboratories, laboratories, cooking rooms, etc. that generate sewage containing solid materials. In addition, the purification treatment capacity itself can be greatly increased, so that it is possible to reliably reduce costs and improve the level of wastewater purification, such as large suburban shopping centers and various factories. Highly evaluated in various industries related to sewage treatment, such as maintenance and inspection contractors, who are responsible for maintenance and management of purification of sewage generated in large quantities, etc. It is, available over a wide range, is expected to be the ones that continue to spread.
[Brief description of the drawings]
The drawings show some typical embodiments embodying the technical idea of the sewage purification apparatus of the present invention.
FIG. 1 is a cross-sectional view showing the structure of a sewage purification apparatus.
FIG. 2 is a cross-sectional view showing the structure of a sewage purification apparatus according to another embodiment.
[Explanation of symbols]
1 Wastewater purification equipment
2 Primary treatment tank
21 Inlet
3 Filter
4 Secondary treatment tank
5 tertiary treatment tank (treatment tank below secondary treatment tank)
6 Foreign matter separator for septic tank
61 Same suction pipe
62 Same pump
63 Centrifuge mechanism
64 Same drive motor
65 Oil / water separation mechanism
66 Release pipe

Claims (2)

A primary treatment tank capable of initially storing and temporarily storing contaminated wastewater flowing into a sewage septic tank through a sewage inflow path and precipitating and separating contaminants and contaminants contained in the wastewater, and the primary treatment tank A secondary treatment tank that overflows and moves the supernatant water adjacent to the tank, purifies the stored wastewater using aerobic or anaerobic microorganisms, and purifies by neutralization, aggregation, precipitation, etc., and further secondary It is adjacent to the treatment tank , and the supernatant water that overflows and moves from there is brought into contact with the chlorin agent, etc., and it is disinfected so that it can be discharged into the natural environment. or drainage, or a secondary treatment vessel following treatment tank formed to drained by forced pumping by the pump upon reaching a predetermined amount, connected in Monono of one of the box-shaped, integrated Sewage flow in septic tank The primary treatment tank upper portion to be directly below the inlet in the path, the sewage flowing into one housing the crude filterable filter basket detachably to death the lower end in the vicinity of the primary treatment tank bottom, the same next processing tank upper the upper end of the suction pipe which is extended up to, or equal to the following treatment bath, subsequent secondary treatment tank of the same next processing tank, or, a lower end portion coordinated treatment tank below the secondary treatment tank, the same order Precipitate in the appropriate place outside the sewage septic tank between the treatment tank, the secondary treatment tank next to the same primary treatment tank, or the upper end of the discharge pipe extended to the upper side of the treatment tank below the secondary treatment tank. A pump that can pump up wastewater containing waste, a centrifugal separation mechanism that can centrifuge the sediment collected from the bottom of the wastewater treatment tank, and an oil separation mechanism that can separate the oily content in the wastewater Sewage purification equipment, characterized in that it is installed . A primary treatment tank capable of initially storing and temporarily storing contaminated wastewater flowing into a sewage septic tank through a sewage inflow path and precipitating and separating contaminants and contaminants contained in the wastewater, and the primary treatment tank A secondary treatment tank that overflows and moves the supernatant water adjacent to the tank, purifies the stored wastewater using aerobic or anaerobic microorganisms, and purifies by neutralization, aggregation, precipitation, etc., and further secondary It is adjacent to the treatment tank , and the supernatant water that overflows and moves from there is brought into contact with the chlorin agent, etc., and it is disinfected so that it can be discharged into the natural environment. or drainage, or a secondary treatment vessel following treatment tank formed to drained by forced pumping by the pump upon reaching a predetermined amount, connected in Monono of one of the box-shaped, integrated Sewage flow in septic tank A filter trough that can roughly filter inflowing sewage is detachably accommodated in the upper part of the primary treatment tank immediately below the inlet in the passage, while the bottom of the secondary treatment tank next to the primary treatment tank, or the second The upper end of the suction pipe line that extends to the upper side of the secondary processing tank or the secondary processing tank and below the secondary processing tank or the secondary processing tank, and the same primary processing tank, the septic tank outside place between the upper end of the secondary treatment tank below the lower end coordinated in the processing tank, the same next processing tank, or discharge line which is extended to the same treatment tank upper follows secondary treatment tank In addition, a pump capable of pumping up sewage containing sediment, a centrifugal separation mechanism capable of centrifuging sewage sediment sucked up from near the bottom of the sewage treatment tank, and an oil-water separation mechanism capable of separating oily components in sewage Intervene and install Sewage purifying apparatus features.

Images