CN1300016C - River late water purification method and its special flowing aeration equipment - Google Patents
River late water purification method and its special flowing aeration equipment Download PDFInfo
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- CN1300016C CN1300016C CNB2003101150099A CN200310115009A CN1300016C CN 1300016 C CN1300016 C CN 1300016C CN B2003101150099 A CNB2003101150099 A CN B2003101150099A CN 200310115009 A CN200310115009 A CN 200310115009A CN 1300016 C CN1300016 C CN 1300016C
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Images
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention provides a water purification method for rivers and lakes, which is characterized in that the water purification method uses a river or a lake as a natural processing pool, and uses a flow making aeration device arranged in the river or the lake to make manual flows; closed and anoxybiotic river water or lake water is converted into richly oxygenous circulating water flows so as to form a contact oxidation aeration pool; biologic bed filling materials are arranged in a flow route of the water flows in the contact oxidation aeration pool, and organic contaminants in the water are decomposed with a biologic oxidation method. The present invention also provides the special flow making aeration device which comprises a turbulence pump, a water inlet tube, a flow mixing channel and a water outlet tube. The special flow making aeration device is characterized in that the water inlet tube is provided with an air inlet which is communicated with air above a water level; an outer sleeve of the water inlet tube and /or an outer sleeve of the water outlet tube is provided with a monopole magnetic ring. The contents of COD, BOD, SS in the river water or the lake water can be quickly and efficiently reduced after the method of the present invention is executed, and energy consumption is low; the silting of organic sludge can be prevented, the bad smell of a water body can be eliminated, and the problem that fishes and shrimps die because of oxygen deficiency in summer can be avoided. The water purification method has inapproachable superiority.
Description
Technical field
The present invention relates to the environmental protection field, especially relate to the method for purifying water and the equipment thereof of rivers and lakes.
Background technology
Along with socioeconomic high development, the industrialization and the urbanization of human society increasingly sharpen, and water pollutes serious day by day.Over nearly 10 years, China's city domestic sewage quantity discharged every year surpassed the industrial sewage quantity discharged first with 5% speed increase in 1999.Calendar year 2001, the city domestic sewage quantity discharged was 22,100,000,000 tons, accounted for 53.2% of national total amount of sewage discharge.Whole nation industry in 2002 and urban life wastewater emission amount are 439.5 hundred million tons, and wherein the urban life wastewater emission amount is 232.3 hundred million tons, increases by 0.9% than the last year.Because huge blowdown pressure like this, the long-term excess load running of various places sewage work, even the sewage of unprocessed mistake directly is discharged into rivers and lakes, make rivers and lakes slowly lose self-purification capacity, the first-generation water that formation is representative with black smelly anoxic pollutes, or formation is the s-generation water pollution of representative with heavy metal, noxious chemical pollution, or formation is the third generation water pollution of representative with the pollution of nutritive element excess, more very be that the three generations pollutes simultaneously and occurs in a lot of rivers and lakes, make the rivers and lakes water pollution control of China more hard.
Administer technical field in the lake, river, that adopts usually has the one-level of a construction purification of water quality factory, river is introduced the technology of discharging go back to the river in the factory after the simple process.In the process system of prior art, generally be directly to adopt dosing, precipitation, discharging to return river conservancy worker's skill, and there is not contact oxidation technology, so even if the every conventional index of water outlet after handling can reach first discharge standard, but the dissolved oxygen in the water is not significantly improved, and then after water after treatment entered the lake, river again, the self-purification capacity of water did not obviously improve, the quality of water is made it back again, and it is smelly to continue blackout.And for the river lake water of handling huge flow, it is big that existing improvement technology also exists floor space, investment cost height, problems such as working cost height.
The pollution of river and lake water quality normally organic pollutant exceed standard or water in the more eutrophication pollution that causes the unusual breeding of algae of nitrogen, phosphorus nutrition constituent content.Organic pollutant is too much, dissolved oxygen is not enough, and foul smell that anaerobic digestion produces and black liquor cause the water body blackout smelly.At sewage treatment industry, for organic contamination type sewage, biological contact oxidation process is very sophisticated good method, but because the limitation of equipment and technology, and it is only limited to and is used in sewage work etc. and locates at present, does not also directly adopt in the lake, river.
Summary of the invention
The objective of the invention is to solve in the improvement of existing lake, river, the self-purification capacity of water can not get improving, water quality can not keep, the water purifying plant floor space is big, investment cost and the high problem of working cost, and provide a kind of self-purification capacity that can improve water, regulation effect is good, and cost is low, the method for purifying water of practical rivers and lakes and equipment thereof.
The method for purifying water of rivers and lakes of the present invention is characterised in that, with rivers and lakes is natural treating pond, manually make stream by the stream aerator of making that is arranged in the lake, river, sealing anoxybiotic river lake water is become the circulating water flow that is rich in oxygen, form the catalytic oxidation aeration tank; In the catalytic oxidation aeration tank, on the stream of current organism bed filling is set, utilizes the organic pollutant in the biological oxidation process water of decomposition.
Method for purifying water according to rivers and lakes of the present invention is characterized in that, throws in the ammonia nitrogen nitrating agent in the catalytic oxidation aeration tank in rivers and lakes, and each consumption is a 0.5-5 gram/cube water, and throwing in frequency is 3-5 days 1 time, is no more than 2 months during the input.
Method for purifying water according to rivers and lakes of the present invention, it is characterized in that, in the catalytic oxidation aeration tank in described rivers and lakes central baffle is set, to make the stream aerator uniformly-spaced is provided with in described dividing plate both sides, the dividing plate both sides to make flow path direction opposite, the sewage in the catalytic oxidation aeration tank is circulated as oxidation ditch.
Method for purifying water according to rivers and lakes of the present invention, it is characterized in that, there is two-stage catalytic oxidation aeration tank in the described rivers and lakes or more than the two-stage, series connection mutually, upstream be first step catalytic oxidation aeration tank, downstream be final stage catalytic oxidation aeration tank, separate with dividing plate between the catalytic oxidations at different levels aeration tank, and make the current can be from the upstream flow further downstream.
Method for purifying water according to rivers and lakes of the present invention is characterized in that, the provided upstream in described first step catalytic oxidation aeration tank is equipped with the grid of filtration.
Method for purifying water according to rivers and lakes of the present invention is characterized in that, has been provided with the air flotation pool of removing the suspended substance effect in the downstream of described final stage catalytic oxidation aeration tank.
Principle of the present invention is such: natural rivers and lakes had certain self-purification capacity originally, can the oneself purify water, and kept clean water quality.But when human pollutent exceeds standard discharging, tend to substantially exceed the detergent power of water body self, even the detergent power that makes water body self is zero, makes particularly bottom water body severe depletion of oxygen of water body, greatly suppressed the activity of aerobic microbiological (nitrobacteria etc.).Anaerobion breeds in a large number under anoxic condition, carries out anaerobic digestion to falling into water-bed organism, produces obnoxious flavoures such as hydrogen sulfide, methane, ammonia, discharges foul smell and causes fishes and shrimps mass mortality even disappearance.Hydrogen sulfide again with water in iron reaction, generate iron sulphide and make the water body blackout.The organic deposition that can not get in time decomposing forms black mud, and gives out a foul smell at the bottom.Water body has closure and illiquidity for the water bodys such as the preceding water reserve of sluice gate in lake, reservoir, river course, presents the feature of " a pool of stagnant water ", and the easier corruption of water quality is smelly.
Administering the exceed standard water body dirt that causes, black foul sewage of organic pollutant in the lake, river dyes, at first must use manual method to improve the self-purification capacity of river, water body in lake, and effective means is manually made stream and is carried out high efficient aeration oxygenation severe depletion of oxygen river, lake exactly, the slough of severe depletion of oxygen is become be rich in oxygen, abundant the flow running water district of exchange.But the aeration that carries out in the lake, river can not be taked the such face aeration of general sewage work aeration head aeration, and can only take an aeration.Because it is unpractical laying the aeration pipe network that spreads all over the whole district in river, lake.And oxygen is very slow from the transmission speed in water, the solubleness of the water oxygen under a normal atmosphere 20 ℃ the time only is 0.00917g/l, water body must flow when taking a some aeration oxygen replenishing, the heavy-oxygen-enriched water piece at aeration point place and oxygen deprivation water piece away from aeration point fully could be exchanged, realize full waters aeration.Flow velocity river self faster can be realized the exchange of oxygen enrichment water body piece and oxygen deprivation water piece, but for the preceding water reserve of the sluice gate in lake, reservoir, river course, plains region current extremely slowly for the water body such as river, water body is noncurrent stagnant water substantially, must in aeration, manually make stream, realize full waters aeration, could allow heavy-oxygen-enriched water and oxygen deprivation water exchange rapidly.
Build after the huge oxygen enrichment circulating water flow, on the current stream, lay high efficiency packing-square block biological bed again, just polluting the technical qualification that successfully realized biological contact oxidation process in the lake, river, formed the technical system in biological contact oxidation process direct purification river, lake in the waters.
The ammonia nitrogen nitrating agent of select throwing in is synthetic, elite Powdered microorganism mixture, contains to be in preclinical pure nitrobacteria and Nitrosomas, and nutritive salt, be adapted under the anoxia condition sewage being carried out denitrogenation processing.Nitrosomas is mainly supported the action of microorganisms process, makes ammonia nitrogen change into nitrite nitrogen, and biological oxidation can promote nitrifier and carry out nitrification; Nitrifier is the autotrophic organism bacterium, is that carbon source is carried out Synthesis with the carbonic acid gas, and its reproduction speed is 8-16 hour; Two kinds of effects that the ammonia nitrogen nitrating agent takes place can make the ammonia in the water reduce, and then perform toxic attenuation, and the above-mentioned two kinds of effects that taken place do not consume dissolved oxygen too much, because their oxidized mistakes.The consumption and the frequency of select throwing in as required can optimization process and eliminate because bed mud is dug the stench of generation.
Because the water yield is huge, the power consumption that the traditional technology aeration is made stream is surprisingly big, basic being difficult to realized, therefore, in order to realize that the present invention sends out method, the present invention also provides a kind of super-flow to make the stream aerator, and it has the characteristics of big flow, less energy-consumption, has successfully solved the low-cost stream of making and has made the problem that flows aeration oxygen replenishing with full basin.
Special use of the present invention is made the stream aerator and is comprised turbulence pump, water inlet pipe, mixed flow road and rising pipe, the impeller assembly of described turbulence pump is arranged in the mixed flow road, current are flowed into by water inlet pipe, through the mixed flow road, discharge by rising pipe, it is characterized in that described water inlet pipe has the gas inlet with water surface air communication, outside described water inlet pipe and/or rising pipe, be arranged with the one pole magnet ring.
According to the stream aerator of making of the present invention, it is characterized in that, described water inlet pipe is connected with the one-level ejector, described one-level ejector has the gas inlet of flow inlet and water surface air communication, between mixed flow road and rising pipe, be provided with the secondary jets device, the rectification amplifier of band water absorption tube is housed outside described secondary jets device, and described rectification amplifier is arranged with the one pole magnet ring outward.
According to the stream aerator of making of the present invention, it is characterized in that be coated with catalyst film in described rectification amplifier, this film is the composition of nano titanium oxide and nanometer iron powder.
The principle of work of making the stream aerator of the present invention is: according to gas to liquid migration " two-film theory " as can be known, mobility mainly with gas and liquid two-phase between surface in contact and exchange process in liquid phase to lose oxygen gradient relevant, when dissolved oxygen degree of reaching capacity, in water, inject the dissolved oxygen that more oxygen also can't improve water more again.Therefore, for developing aeration oxygen increasing machine rational in infrastructure, well behaved, there is Many researchers all competitively to make great efforts to " smashing bubble " and stir water body with strength and go to improve dynamic efficiency, goes to improve the oxygen mobility and ignored the solvability that changes water to strengthen the blended direction.And the stream aerator of making of the present invention, except utilizing " smashing bubble " and stirring water body with strength, also the one pole magnet ring manufacturing strong magnetic area of the no energy consumption of the utilization method of magnetizing sewage goes to reduce the surface tension of water and the solvability that changes water improves the oxygen mobility.The present invention uses state-of-the-art hydromeehanics principle of design dexterously, the energy conversion principle of having utilized secondary jets and rectification to amplify, make it consume same electric power and can build discharge doubly than the big 20-30 of common water pump, in water, form huge horizontal cyclic current, simultaneously can also carry out high efficient aeration oxygenation, thereby it is energy-conservation especially, just huge water body can be stirred with very little power consumption, whole water body is become by stagnant water be rich in flow of oxygen water, thereby improved the self-purification capacity in river, lake.
Implementing method of the present invention can be fast, efficient, low energy ground reduces chemical consumption (COD), biological oxygen demand (BOD), suspended substance (SS) content in the lake water of river, prevent the alluvial of organic sludge, eliminate the water body foul smell, can also prevent fishes and shrimps hypoxia death in summer.Make stream aeration oxygen increasing machine and the filler of its special use all are submerged in the water, do not influence water surface view at all.Has unrivaled superiority.
Description of drawings
Fig. 1 is the process flow diagram of water purification improvement method in rivers and lakes of the present invention;
Fig. 2 is according to the inventive method, and the layout drawing of making the stream aerator is set in the lake, river;
Fig. 3 is the structural representation that the stream aerator is made in the special use of water purification improvement method in rivers and lakes of the present invention;
Fig. 4 is the magnetic line of force distribution schematic diagram of common magnet;
Fig. 5 is a magnetic line of force distribution schematic diagram of making employed one pole magnet ring in the stream aerator shown in Figure 3.
Embodiment
The inventive method is both sides, river shore protection itself to be used as the structures of waste water control by the water channel of lining cutting, no longer builds special treatment plant.Catalytic oxidation aeration tank, air flotation pool all are placed in the water channel, and coarse rack and fine fack also all are arranged in the water channel.
In order directly in water channel, to administer, must design enough 8-12 hour total waterpower residence time of sewage, for the aerobic purification of aeration creates conditions.
As shown in Figure 1, in one embodiment of the invention, the method for purifying water in lake, river comprises following flow process:
1. coarse rack filters:
Grid is the equipment of sewage treatment industry indispensability.This open-air open water surrounding in the water channel particularly, solid refuses such as the plastics that people abandon, paper are a lot, must tackle these thick rubbish with grid, for follow-up aeration treatment scheme creates conditions.Coarse rack employing spacing is the full automatic pollution removing grid of 20mm in this technology.The platform of full automatic pollution removing coarse rack several border factually situation and deciding.
2. fine fack filters:
For the biological bench grafting of submerged touched oxidation style, biological contact filler was the place of microorganism colonization, and the slit is relatively more valuable in the filler, should be full of by inorganic suspended substance, otherwise can reduce service efficiency.Therefore need add fine fack, less inorganic suspended substance is removed.Fine fack employing spacing is the full automatic pollution removing grid of 5mm in this technology.The platform of full automatic pollution removing fine fack several border factually situation and deciding.
3. handle the catalytic oxidation aeration tank:
Touch oxidation style waste water control experience and data according to the biological bench grafting of submerged successful under the different quality condition, determine that this technology is 12 hours at the aeration tank total hrt.According to the water channel discharge of sewage, per hour flow.The water channel depth of water and width then can be calculated the water channel length that water storage needed in 12 hours.
Calculation formula is:
As shown in Figure 2, for guaranteeing decontamination effect improving preferably, general biological contact oxidation pond quantity is no less than 2, and use is together in series.The benefit of plural serial stage is that first section contact-oxidation pool is used for accepting the load impact that enters sewage, and the aerobic microbiological bacterial classification relatively adapts to higher BOD loading and load change impacts; The latter end contact-oxidation pool then is used for the sewage of the low BOD loading after preliminary improvement is carried out further meticulous purification, and the aerobic microbiological bacterial classification relatively adapts to low BOD loading, and does not directly mix with the raw waste water that enters, and can guarantee the quality of water outlet.
The total length reply etc. that is used for biological contact oxidation pond in the Design Theory in the water channel is cut apart, and 1 grade of catalytic oxidation aeration tank and 2 grades of catalytic oxidation aeration tank length are average.As first step catalytic oxidation aeration tank, the water channel in downstream is as catalytic oxidation aeration tank, the second stage with the water channel of upstream.Wherein last part is set up an interval and is used as air flotation pool, separates with dividing plate.
In the catalytic oxidation aeration tank, two sides uniformly-spaced are provided with " super-flow is made the stream aerator " along the river.It is opposite that the aerator of two sides is made flow path direction, makes the interior sewage of rivers and canals circulate as oxidation ditch.
Because the stream ability of making of organic contamination type river improvement specific equipment-" super-flow is made the stream aerator " therefore should be calculated required machine quantity with oxygen requirement much larger than the aeration aerating ability.
Whenever to remove 1kgBOD
5Need 1kgO
2Calculate the BOD in the water channel
5Average out to ∑ mg/L, the BOD of every day
5Total amount Q is: Q=∑ * 1000 * every day flow * 0.001 * 0.001=kg/d
Again with the BOD of every day
5It is Q that total amount Q per hour is converted into oxygen requirement
1
The OTR index (transformation efficiency of oxygen in water can reach 50%-60%) of making the stream aerator according to the special use of this technology is calculated, and reality per hour oxygen requirement is Q
2, again according to Q
2Calculate actual power consumption:
Q
2÷ 2.2kgO
2/ kw.h=actual power consumption (kw/h)
The power of required " super-flow is made the stream aerator " platform number=total power actual power consumption (kw/h) ÷ " super-flow is made the stream aerator " considers that the both sides aerator needs to arrange that uniformly-spaced machine quantity should be got even number in the water channel.
Under the isolation of central baffle, water channel is divided into the same shape of oxidation ditch, and super-flow is made the stream aerator " on one side on one side aeration make sewage along the river bank slowly circulate.Because sewage is able to fully flow stir, the oxygen enrichment water body at aerator place is evenly dispersed the river course everywhere, makes that the sewage in the whole river course all has been in oxygen condition, thereby can fundamentally stop the generation of foul smell.
Biological bed (being made up of Ball-type packing) meanwhile is set in water channel, the technical qualification of contact oxidation method so just in the river course, have been realized, a large amount of aerobic microbiological of will growing on the filler forms microbial film, relies on microbial film to decompose organic pollutant in the river.
The BOD of discharging every day in the usage quantity=water channel of filler
5Every cubic metre of filler of total amount ÷ can be born BOD every day
5Load
4. air flotation pool is handled:
The catalytic oxidation aeration tank is handled in the water of back and is contained the microbial film that comes off, and inorganic fine suspension SS is also more in the raw waste water in addition, and directly discharging then after handle the catalytic oxidation aeration tank, SS is difficult for up to standard.Therefore in the end adopt the air supporting operation in the procedure in the technology.Last procedure also can adopt the precipitator method on the principle, but settling tank mud inconvenience cleaning in the water channel environment in the open, and the air supporting rule is directly taken suspended substance to the water surface, is convenient to remove.So adopt the air supporting method in this programme.
Can guarantee to administer the back water outlet according to the design of this technology and reach national surface water 4 class water quality standards (GB3838-88), that is:
| Clearance % | Administer back standard of drainage mg/L | |
| Foul smell | ＞90 | Can't smell obvious foul smell |
| Floating matter | ＞90 | Eliminate water surface oil mark, fallen leaves and other gather thing |
| SS | ＞91 | ＜10 |
| BOD | ＞90 | ＜6 |
| COD | ＞88 | ＜20 |
| DO | ＞3 | |
| Kjeldahl nitrogen (containing ammonia nitrogen and organonitrogen) | ＞93 | ＜2 |
The present invention also provides a kind of rivers and lakes improvement specific equipment that stream and aeration oxygen replenishing carry out synchronously of manually making, adopt the one pole high-intensity magnetic field technology of no energy consumption to break oxygen in water dissolution rate and saturation limit, dissolve in best hydromeehanics design, the use and the oxygenation limit of traditional aeration oxygen replenishing equipment have thoroughly been broken, have that the zone of action is big, simple in structure, less energy-consumption, noiselessness, advantage that oxygen transfer efficiency is high, can realize the update of traditional aeration oxygen replenishing equipment.
As shown in Figure 3, in one embodiment of the invention, the special-purpose stream aerator of making comprises the turbulence pump of being made up of drip proof machine 1, the pump housing 2, pump cover 3, transmission shaft 4, impeller 5 and under-chassis 18, reaches water inlet pipe 6, inlet pipe 7, intake valve 8, mixed flow road 9, one-level ejector 10, porous plate plug 11, one pole magnet ring 12, catalyst film 13, secondary jets device 14, rectification amplifier 15, water absorption tube 16, spray tube 17 etc.Wherein, the impeller 5 of turbulence pump is arranged in the mixed flow road 9.
Water inlet pipe 6 has a Y-tube, and water surface air enters water inlet pipe 6 by inlet pipe 7 through intake valve 8 and Y-tube.The front end of water inlet pipe 6 connects one-level ejector 10, puts a plurality of by U.S. spaceflight technologic material SRO outside the one-level ejector 10
6Fe
2O
3The one pole magnet ring of making 12, perforation plate plug 11 is equipped with at one-level ejector nozzle place.Water inlet pipe 6, inlet pipe 7, intake valve 8, mixed flow road 9, one-level ejector 10, porous plate plug 11 etc. constitute negative pressure gas-liquid mixed district.
Secondary jets device 14 is arranged between mixed flow road 9 and the nozzle 17, and rectification amplifier 15 is housed outside secondary jets device 14.Be coated with catalyst film 13 in the rectification amplifier 15, the water absorption tube 16 that connects river lake water be housed for 15 times, outside rectification amplifier 15, be arranged with one pole magnet ring 12 at rectification amplifier.Mixed flow road 9, secondary jets device 14, one pole magnet ring 12, rectification amplifier 15, water absorption tube 16, nozzle 17 etc. constitute malleation gas-liquid mixing zone.
Described one pole magnet ring 12 is to adopt U.S. spaceflight technologic material SRO
6Fe
2O
3Make, its magnetic line of force distributes as shown in Figure 5, and the magnetic line of force of common magnet distributes as shown in Figure 4.
Described rectification amplifier 15 is oval barrel-shaped designs, the one end connects secondary jets device 14, the other end connects nozzle 17, the internal space of described rectification amplifier 15 is more than 20 times of secondary jets device 14, and the length that nozzle 17 extends into the interior pipe of rectification amplifier 15 be about rectification amplifier 15 overall length 2/3rds, make water inlet from water absorption tube 16 through one section flow process after again from nozzle 17 ejections.
The principle of work that the present invention makes the stream aerator is: the impeller work of turbulence pump produces negative pressure, constantly suck water and air by suction function and make water and air thorough mixing through the effect of one-level ejector and perforation plate plug and form the oxygenation of the negative pressuren zone first step, form negative pressure in the one-level ejector and suck water surface air and pressure water fierce mixing in the interval of built-in perforation plate plug, gas-liquid flow is forced by the back by the broken micro-bubble that is divided in the interval of built-in perforation plate, formation gas-liquid mixed stream, carry out emulsion reaction, promote the diffusion of oxygen molecule, quickened the dissolved oxygen process.Force to pass through the strong magnetic area that the one pole magnet ring produces through the gas liquid mixture that one-level ejector nozzle sprays at a high speed, it is perforation plate plug district, when gas-liquid mixed is flowed through a suitable accumulative high-intensity magnetic field, water will produce an electromotive force as conductor, this electromotive force will make direct current positive charge on the water band and arrange mutually and tear open, separate, this causes the surface tension of water to reduce greatly, thereby make glassware for drinking water that solvability be arranged, water can dissolve more resolvability material like this, thereby improved the dissolution rate of oxygen in water, and then improved the saturation ratio (can improve 25%) of oxygen in water.Turbulence pump is in the process that is transferred to the liquid energy by mechanical energy, repeat to have an effect between liquid and the blade, be accompanied by vortex disturbance mixing phenomena consumingly, this phenomenon helps oxygenation and mixes, and turbulence pump has good self-priming, air water to mix, reach the ability that gas-liquid mixture is carried.Then with the work of secondary jets device and rectification amplifier after the powerful plug-flow power support of turbulence pump.Be that one-level water-gas promotes, another grade water-water promotes and rectification is amplified.The dissolved oxygen water that this strand reaches the over-saturation state enters second stage ejector to carry out the second time and sprays, gas liquid mixture that sprays at a high speed through secondary jets device nozzle and the strong magnetic area of forcing through the water of rectification amplifier water absorption tube inspiration to produce by the one pole magnet ring further improve and are sucked into the solvability of water and carry out two-pass aerating at zone of positive pressure.In the time of in the rectification amplifier that is injected to particular design by nozzle, because rectification amplifier is oval barrel-shaped design, the internal space is more than 20 times of secondary jets device, and pipe extends into rectification amplifier in the nozzle, therefore, the water that is passed through is through the powerful plug-flow impact force action of secondary jets device, and constantly being limited the quantity of by the rectification amplifier water absorption tube and suck and be magnetized, quicken, mix in peripheral source, water source, further forms the big current of average rate after the emulsification oxygenation again.Loss of momentum when directly covering of the fan sprays in water because the big momentum current of speed homogeneous have significantly reduced turbulence pump water, flow is amplified significantly, usually can increment more than 20 times, make the visible current length of in water, building significantly improve several times, reach more than 100 meters.In the rectification amplifier of zone of positive pressure, the catalyst film that is coated with in magnetic line of force that the strong magnetic area that produces by the one pole magnet ring takes place and the rectification amplifier carries out the magnetic line of force catalytic oxidation.The major ingredient of catalyst film is nano titanium oxide and nanometer iron powder composition, electron absorption hertzian wave in catalyst film forbidden band under the magnetic line of force effect (valence associating) and being excited on the conduction band (conduction), promptly on conduction band, produce and have very strong electronegative high reactivity electronics, on the forbidden band, produce the hole (h+) of positively charged simultaneously, have very strong active electron-hole pair thereby produce, form redox system.After these electron-hole pairs are moved to the catalyst film surface, with dissolved oxygen and H
2O has an effect, final hydroxyl radical free radical (.OH) and the super-oxide ion (superoxide ion) that produce with highly chemical oxidation activity, and .OH is a strong oxidizer, can be CO with the organism permineralization usually
2And H
2O.Water is by magnetic field the time, can produce faint electric current, foreign material such as calcium in the water and iron also can produce the ion of positively charged and negative electricity simultaneously, ion is owing to plus-minus electric relation attracts each other, making slightly, foreign material condense and drain with current, and the thin further oxidation of partial organic substances particulate, to reach the purpose of sterilization, algae removal and removal portion C OD, BOD, SS.Thereby a succession of work and reaction through above-mentioned negative pressuren zone and zone of positive pressure are finished three kinds of functions such as manually making stream, aeration oxygen replenishing and bactericidal purifying water quality simultaneously.
Because this rivers and lakes improvement special use is made stream aeration oxygen replenishing equipment and has been adopted U.S. spaceflight technologic material SRO
6Fe
2O
3The one pole magnet ring of making produces strong magnetic area water quality is magnetized, thereby improved the dissolution rate of oxygen in water, improve the saturation ratio of oxygen in water, cancelled the deceleration device of common oxygenating machine, select for use the direct high rotating speed of import drip proof machine to drive (above 2000 rev/mins), the mechanical efficiency height, running is steadily, noiselessness, to make stream oxygenation scope big, the oxygen transfer efficiency height.Therefore, its dynamic efficiency can reach 2.5-2.8kgo
2/ kw.h.The magnetic line of force catalytic oxidation that in rectification amplifier, carries out, COD can reduce 20-40% usually, and BOD can reduce 30-50%, and SS can reduce 15-20%.
This equipment has following characteristics:
A. high-level efficiency dissolved oxygen
Unique negative pressuren zone, zone of positive pressure appropriate design, the suction air capacity is many, mixes with water, produces bubble carefully and many, and the surface tension of water reduces after magnetizing, and the solvability of water improves, and then the dissolved oxygen rate height.
B. super-flow is made stream
The appropriate design that zone of positive pressure secondary jets and rectification are amplified is finished less energy-consumption driving super-flow and is manually made stream.Build the visible current of overlength, promote slough fluidization and sensitization.
C. easily install non-maintaining
Automatically take off device and non-cohesive to take off two kinds in device available, the installation simple-to-maintain is easy.Machine is submerged in the bottom, does not influence water surface view, does not produce any secondary harm.
The performance index of this equipment are as follows:
| Model | Power (KW) | Oxygenation (kg/d) | Make flow (m 3/d) |
| S-15 | 0.15 | 9.9 | 2200 |
| S-25 | 0.25 | 16.5 | 4000 |
| S--40 | 0.4 | 26.4 | 5700 |
| S-75 | 0.75 | 49.5 | 10500 |
| S-150 | 1.5 | 99 | 18000 |
| S-220 | 2.2 | 145.2 | 29000 |
| S-370 | 3.7 | 244.2 | 46000 |
| S-550 | 5.5 | 363 | 70000 |
| S-750 | 7.5 | 495 | 105000 |
The use range of this equipment:
What a. be applied to river, lake makes stream, reoxygenation, deodorizing, sterilization, algae removal.
What b. be applied to the industrialized culture field makes stream, reoxygenation, deodorizing, sterilization, algae removal.
What c. be applied to the view fishpond makes stream, reoxygenation, deodorizing, sterilization, algae removal.
What d. be applied to fountain sight makes stream, reoxygenation, deodorizing, sterilization, algae removal.
What e. be applied to hydrophilic park makes stream, reoxygenation, deodorizing, sterilization, algae removal.
Claims (13)
1. the method for purifying water of rivers and lakes, it is characterized in that, be natural treating pond with rivers and lakes, manually makes stream by the stream aerator of making that is arranged in the lake, river, sealing anoxybiotic river lake water is become the circulating water flow that is rich in oxygen, form the catalytic oxidation aeration tank; In the catalytic oxidation aeration tank, on the stream of current organism bed filling is set, utilizes the organic pollutant in the biological oxidation process water of decomposition.
2. method for purifying water according to claim 1 is characterized in that, throws in the ammonia nitrogen nitrating agent in the catalytic oxidation aeration tank in rivers and lakes, and each consumption is a 0.5-5 gram/cube water, and throwing in frequency is 3-5 days/time, is no more than 2 months during the input.
3. method for purifying water according to claim 1 and 2, it is characterized in that, in the catalytic oxidation aeration tank in described rivers and lakes central baffle is set, to make the stream aerator uniformly-spaced is provided with in described dividing plate both sides, the dividing plate both sides to make flow path direction opposite, the sewage in the catalytic oxidation aeration tank is circulated as oxidation ditch.
4. method for purifying water according to claim 3, it is characterized in that, there is two-stage catalytic oxidation aeration tank in the described rivers and lakes or more than the two-stage, series connection mutually, upstream be first step catalytic oxidation aeration tank, downstream be final stage catalytic oxidation aeration tank, separate with dividing plate between the catalytic oxidations at different levels aeration tank, and make the current can be from the upstream flow further downstream.
5. method for purifying water according to claim 4 is characterized in that, the provided upstream in described first step catalytic oxidation aeration tank is equipped with the grid of filtration.
6. method for purifying water according to claim 4 is characterized in that, has been provided with the air flotation pool of removing the suspended substance effect in the downstream of described final stage catalytic oxidation aeration tank.
7. method for purifying water according to claim 3 is characterized in that, in the catalytic oxidation aeration tank, total waterpower residence time is designed to 8-12 hour.
8. method for purifying water according to claim 3 is characterized in that, the described quantity of making the stream aerator is to calculate by the following method:
Whenever to remove 1kgBOD
5Need 1kgO
2Calculate the BOD in the inlet channel
5Average out to ∑ mg L, the BOD of every day
5Total amount Q is:
Q=∑ * 1000 * every day flow * 0.001 * 0.001=kg/d;
Again with the BOD of every day
5It is Q that total amount Q per hour is converted into oxygen requirement
1
Calculate according to the OTR index of making the stream aerator, reality per hour oxygen requirement is Q
2, again according to Q
2Calculate actual power consumption: Q
2÷ 2.2kgO
2/ kw.h=actual power consumption (kw/h);
The power of required " super-flow is made the stream aerator " platform number=total power actual power consumption (kw/h) ÷ " super-flow is made the stream aerator ";
Consider that the both sides aerator needs to arrange that uniformly-spaced machine quantity should be got even number in the inlet channel.
9. the stream aerator is made in a special use that realizes the described method for purifying water of claim 1, comprise turbulence pump, water inlet pipe, mixed flow road and rising pipe, the impeller assembly of described turbulence pump is arranged in the mixed flow road, current are flowed into by water inlet pipe, through the mixed flow road, discharge by rising pipe, it is characterized in that, described water inlet pipe has the gas inlet with water surface air communication, is arranged with the one pole magnet ring outside described water inlet pipe and/or rising pipe.
10. the stream aerator of making according to claim 9, it is characterized in that, described water inlet pipe is connected with the one-level ejector, described one-level ejector have flow inlet and with the gas inlet of water surface air communication, between mixed flow road and rising pipe, be provided with the secondary jets device, the rectification amplifier of band water absorption tube is housed outside described secondary jets device, and described rectification amplifier is arranged with the one pole magnet ring outward.
11. the stream aerator of making according to claim 10, it is characterized in that described rectification amplifier is oval barrel-shaped design, the one end connects the secondary jets device, the other end is connected with nozzle, and the internal space of described rectification amplifier is more than 20 times of secondary jets device.
12. the stream aerator of making according to claim 11 is characterized in that, the length that described nozzle extends into the interior pipe of rectification amplifier be about rectification amplifier overall length 2/3rds.
13. the stream aerator of making according to claim 10 is characterized in that, is coated with catalyst film in described rectification amplifier, this film is the composition of nano titanium oxide and nanometer iron powder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101150099A CN1300016C (en) | 2003-11-19 | 2003-11-19 | River late water purification method and its special flowing aeration equipment |
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|---|---|---|---|
| CNB2003101150099A CN1300016C (en) | 2003-11-19 | 2003-11-19 | River late water purification method and its special flowing aeration equipment |
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| CN1618744A CN1618744A (en) | 2005-05-25 |
| CN1300016C true CN1300016C (en) | 2007-02-14 |
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| CNB2003101150099A Expired - Fee Related CN1300016C (en) | 2003-11-19 | 2003-11-19 | River late water purification method and its special flowing aeration equipment |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104705246A (en) * | 2011-07-22 | 2015-06-17 | 吴为国 | Method and facility for enabling water to flow and conducting oxygenation through jet devices |
| CN103342413A (en) * | 2013-07-05 | 2013-10-09 | 北京佳业佳境环保科技有限公司 | Town domestic wastewater treatment method based on biological contact oxidation pond |
| CN104030530B (en) * | 2014-06-20 | 2016-03-02 | 上海勘测设计研究院 | The former enhanced water pretreatment unit in a kind of micro-polluted drinking water water source |
| CN105672202B (en) * | 2016-01-19 | 2017-08-29 | 江苏省农业科学院 | A kind of ecological river bed constructing method |
| CN107473492A (en) * | 2017-09-25 | 2017-12-15 | 北京市怦动泰科环保科技有限公司 | Multiple physical field strengthens oxidation Decomposition purifier and its contamination governing method |
| CN107673561B (en) * | 2017-11-07 | 2018-09-11 | 中交生态环保投资有限公司 | A kind of black and odorous water in-situ treatment system and processing method |
| CN109626709A (en) * | 2018-11-13 | 2019-04-16 | 湖北汇环保科技有限公司 | River water body comprehensive purifying processing system |
| CN110590054A (en) * | 2019-08-15 | 2019-12-20 | 台圣环保设备(马鞍山)有限公司 | River water quality improving method |
| CN113603305A (en) * | 2021-08-23 | 2021-11-05 | 华南理工大学 | Black and odorous water body monitoring and biological purification integrated equipment |
| CN114702194A (en) * | 2022-02-21 | 2022-07-05 | 上海市机电设计研究院有限公司 | River and lake water body pollution treatment device and treatment method |
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|---|---|---|---|---|
| US619544A (en) * | 1899-02-14 | Pneumatic wheel-tire | ||
| DE4330856A1 (en) * | 1993-09-11 | 1995-03-16 | Helmut Dipl Phys Gehm | Apparatuses for the introduction as fine bubbles of a pressurised gas and a process for operating these apparatuses |
| WO1997022562A1 (en) * | 1995-12-05 | 1997-06-26 | Inglewood Technologies Pty. Ltd. | An aeration device |
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Assignee: Beijng Jiayejiajing Environmental Protection Technology Co.,Ltd. Assignor: Huang Jianjun Contract fulfillment period: 2008.12.1 to 2015.12.1 Contract record no.: 2009110000055 Denomination of invention: River late water purification method and its special flowing aeration equipment Granted publication date: 20070214 License type: Exclusive license Record date: 2009.4.30 |
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