CN105601040A - Ferric salt nitrogen and phosphorous removal device - Google Patents
Ferric salt nitrogen and phosphorous removal device Download PDFInfo
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- CN105601040A CN105601040A CN201610016350.6A CN201610016350A CN105601040A CN 105601040 A CN105601040 A CN 105601040A CN 201610016350 A CN201610016350 A CN 201610016350A CN 105601040 A CN105601040 A CN 105601040A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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Abstract
A ferric salt nitrogen and phosphorous removal device comprises a regulating pool, a ferric salt nitrogen and phosphorous removal pool and a baffled aeration biochemical filter pool. The ferric salt nitrogen and phosphorous removal pool comprises a phosphorous removal stirring and mixing reaction area, a precipitation separation area, a biochemical nitrogen removal area and a filter area, the upper-middle portion of the phosphorous removal stirring and mixing reaction area is provided with a ferric salt nitrogen and phosphorous removal water inlet pipe and a backflow pipe, the phosphorous removal stirring and mixing reaction area is provided with a phosphorous removing agent adding and metering system, a partition plate is arranged between the phosphorous removal stirring and mixing reaction area and the precipitate separation area, and the bottom of the precipitate separation area is provided with a precipitate discharge valve; the chemical nitrogen removal area is located on the upper portion of the precipitate separation area, a partition net is arranged between the precipitate separation area and the biochemical nitrogen removal area, the upper portion of the partition net is provided with iron chips, the filter area is located on the upper portion of the biochemical nitrogen removal area and contains nitrogen removal area filter materials, and the upper portion of the ferric salt nitrogen and phosphorous removal pool is provided with an exhaust gas collecting pipe; the middle-upper portion of the baffled aeration biochemical filter pool is in a cylindrical shape, the lower portion of the baffled aeration biochemical filter pool is of a conical structure, and the baffled aeration biochemical filter pool comprises a downstream area, an upstream area and a sludge area.
Description
Technical field
The present invention relates to technical field of waste water processing, be specifically related to a kind of molysite denitrification dephosphorization apparatus.
Background technology
Lake " wawter bloom " and coastal waters " red tide " due to nitrogen and phosphorus pollution occur again and again, have jeopardized agricultural, fishingAll conglomeraties such as industry, tourist industry, and drinking water hygiene and food security are constituted a serious threat. Nitrogen and phosphorus pollutantsHave a large capacity and a wide range, it is controlled has become China's great environmental protection subject urgently to be resolved hurrily.
Due to all harm of nitrate pollution, the control of waste water nitrate pollution has obtained the extensive attention of international community.Denitrogenation of waste water technology is mainly divided into physico-chemical process and the large class of bioanalysis two. Wherein, bioanalysis because of its economical and effective,Advantages of environment protection and being used widely. Wastewater biological denitrificaion mainly comprises nitrification, denitrification workWith, short distance nitration effect and Anammox effect, comprise taking nitration processes, denitrification process as representativeTraditional biological denitride technology and the new bio denitrogenation taking short distance nitration technique, anaerobic ammonia oxidation process as representativeTechnology. The breakthrough of and technology theoretical along with biological denitrificaion, taking short distance nitration technique and anaerobic ammonia oxidation process asThe new bio denitride technology of representative continues to bring out. Biological wastewater treatment technology is the mainstream technology of waste water treatment,Taking short distance nitration. anaerobic ammonia oxidation process is the novel denitride technology of representative, for efficient, the low consumption of waste water take offNitrogen has brought prospect. But due to the control more complicated of short distance nitration technique and anaerobic ammonia oxidation process, anaerobismThe restriction of the problems such as ammonia oxidation bacteria is difficult to cultivate and the doubling time is very long, practical engineering application is so far for number is less.Traditional denitride technology taking nitrated, denitrification process as representative will be wastewater biological within following a period of timeThe mainstream technology of denitrogenation. In wastewater processing technology, through biological treatment, waste water COD concentration is substantially up to standard,But concentration of nitrogen and phosphorus still exceeds standard. For the low C:N of this class, than waste water, traditional biological denitrification process is aobvious weak,This is because denitrification process needs electron donor, is conventionally provided by organic matter. Carbon source relative deficiency becomesThe great bottleneck factor of traditional biological denitride technology.
Phosphorus element is one of main reason causing body eutrophication, and waste water dephosphorization is to prevent body eutrophicationEffective way. Waste water dephosphorization technology is mainly divided into chemical method and the large class of bioanalysis two. Bioanalysis is because of its economyEffectively, advantages of environment protection and being used widely. But the while is also faced with reaction time length, equipment accounts forThe problems such as ground area is large, Treatment of Sludge is difficult. Chemical dephosphorization method is because of its economical and efficient, easy and simple to handle, effectReliably, and be not subject to the advantages such as waste water quality impact and applied. Up to now, chemical dephosphorization method stillIt is main dephosphorization process. Chemical dephosphorization mainly forms insoluble phosphate by add chemical agent in waste waterSediment is then removed phosphorus through Separation of Solid and Liquid from sewage. Due to iron-based flocculating agent low price, andPhosphor contaminant under multiple-quality water condition is all had to good removal effect, be therefore widely used, waste water chemistryDephosphorization technique is the effective way that control water systems'phosphorus pollutes. Although molysite is widely used in waste water dephosphorization, representTechnique simple, except phosphorus efficiency, the advantage such as stable, but still exist, added amount of chemical is large, mud producesThe problems such as amount is high, therefore, the urgently system optimization of molysite dephosphorization process.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve the difficult problem in the wastewater treatment of above-mentioned high nitrogen phosphorus, thisInvention provides a kind of molysite denitrification dephosphorization apparatus.
The technical solution adopted for the present invention to solve the technical problems is: a kind of molysite denitrification dephosphorization apparatus, bagDraw together the biochemical filter tank of regulating reservoir, molysite denitrogenation dephosphorizing pond and baffling aeration, described regulating reservoir, molysite denitrogenation removeThe biochemical filter tank of phosphorus pond and baffling aeration is communicated with successively.
Described regulating reservoir comprises regulating reservoir water inlet pipe and regulating reservoir outlet pipe, for regulating high nitrogen phosphorus waste waterWater quality and the water yield.
Described molysite denitrogenation dephosphorizing pond comprises that dephosphorization is uniformly mixed reaction zone, depositing separation area, biochemical denitrificationDistrict and filtering area; Described dephosphorization be uniformly mixed reaction zone middle and upper part be provided with molysite denitrogenation dephosphorizing pond water inlet pipe andReceive the return duct from the waste water in biochemical denitrification district, dephosphorization is uniformly mixed reaction zone top and is provided with dephosphorization agent and addsAdd and metering system, dephosphorization is uniformly mixed reaction zone middle part and is provided with agitating device, and dephosphorization is uniformly mixed reaction zoneBottom design have inclined floor or the curved plate of miter angle, avoid producing current dead angle; Described dephosphorizationBe uniformly mixed between reaction zone and depositing separation area and be provided with dividing plate, the base plate shape in dividing plate and molysite denitrogenation dephosphorizing pondBecome water stream channel, the tapered structure of depositing separation area bottom design, is provided with precipitation in the lower end of pyramidal structureThing drain valve; Described biochemical denitrification district is positioned at the top of depositing separation area, depositing separation area and biochemical denitrificationBetween district, be provided with filter, filter top is laid with iron filings; Described filtering area is positioned at the top in biochemical denitrification district,In filtering area, be provided with denitrogenation district filtrate, the top of filtering area is provided with molysite denitrogenation dephosphorizing pond overfalling weir, and molysite is de-Nitrogen dephosphorization pond overfalling weir connects molysite denitrogenation dephosphorizing pond outlet pipe; The top in molysite denitrogenation dephosphorizing pond is provided with taperUpper cover, the top of taper upper cover is provided with gas sampling pipe.
Described molysite denitrogenation dephosphorizing pond outlet pipe is communicated with the biochemical filter tank of baffling aeration water inlet pipe.
Middle and upper part, the biochemical filter tank of described baffling aeration is that cylindrical, bottom is conical structure, comprises dirtyDistrict, ascending zone and mud district; Described lower current area is arranged in the cylindrical structural in baffling aeration biochemical filter tankPortion, is cylindrical structural, and lower current area top is provided with the biochemical filter tank water inlet pipe of baffling aeration and baffling aerationBiochemical filter tank water distributor, lower current area middle part is provided with lower current area filler, and lower current area bottom is provided with lower current area aeration tube,The bottom of described lower current area is provided with deflection plate, and the vertical section of described deflection plate is horn-like; Described ascending zoneBe positioned at the periphery of lower current area, the top of deflection plate, ascending zone middle part is provided with ascending zone filler, and bottom is provided withStream district aeration tube, the exit on ascending zone top is provided with the biochemical filter tank of baffling aeration overfalling weir; Described mudDistrict is positioned at the bottom of bottom, lower current area and the ascending zone in the biochemical filter tank of baffling aeration, and establish the bottom in mud districtThere is the biochemical filter tank of baffling aeration mud discharging valve.
Adopt above-mentioned molysite denitrification dephosphorization apparatus to carry out a method for wastewater treatment, there are following steps:
1. waste water enters regulating reservoir by regulating reservoir water inlet pipe, regulating water quality and the water yield.
2. then waste water enters molysite denitrogenation dephosphorizing pond by molysite denitrogenation dephosphorizing pond water inlet pipe, and from backflowThe backflow waste water of pipe and adding and the dephosphorization agent mixing of metering system from dephosphorization agent, agitating device is to mixed liquorBe uniformly mixed, carry out chemical dephosphorization reaction, reacted waste water is by dividing plate and molysite denitrogenation dephosphorizing pondThe water stream channel that forms of base plate enter depositing separation area and carry out Separation of Solid and Liquid, sediment is under the effect of gravitySink to the bottom of depositing separation area, discharge by the sediment discharge valve of bottom.
3. the waste water after precipitation enters biochemical denitrification by the filter between depositing separation area and biochemical denitrification districtDistrict, the iron filings on filter are dissolved as ferrous iron by waste water, enters biochemical denitrification district carry out containing ferrous waste waterBiochemical denitrification, the waste water after biochemical denitrification enters filtering area and filters, and the waste water after filtration takes off by molysiteNitrogen dephosphorization pond overfalling weir, molysite denitrogenation dephosphorizing pond outlet pipe enter the biochemical filter tank of baffling aeration water inlet pipe.
4. the methane waste product that molysite denitrogenation dephosphorizing pond produces is useless by molysite denitrogenation dephosphorizing pond taper upper cover topGas collecting pipe is collected discharge.
5. waste water enters by the biochemical filter tank of baffling aeration water inlet pipe, the biochemical filter tank of baffling aeration water distributorThe lower current area in the biochemical filter tank of baffling aeration, the air that lower current area aeration tube produces and waste water are at lower current area fillerIn the generation biochemical reaction that crosses, lower current area filler filters waste water simultaneously, waste water is laggard by deflection plateEnter ascending zone, in ascending zone filler, biochemical reaction occurs, ascending zone filler filters waste water simultaneously,The mud that lower current area and ascending zone produce sinks to mud district, by the mud discharging valve discharge of bottom, mud districtGo out, the biochemical filter tank of baffling aeration water after treatment is by the biochemical filter tank overfalling weir of baffling aeration row up to standardPut.
6. the excess sludge that the biochemical filter tank of the sediment that molysite denitrogenation dephosphorizing pond produces and baffling aeration produces is de-After water, transport outward.
The invention has the beneficial effects as follows: suit measures to local conditions, capital expenditure is few, easy to maintenance, and energy consumption is lower, rightHigh nitrogen phosphorus waste water has reasonable treatment effect.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation in embodiment of the present invention molysite denitrogenation dephosphorizing pond.
In Fig. 1: 1. molysite denitrogenation dephosphorizing pond, 1-1. dephosphorization is uniformly mixed reaction zone, 1-2. precipitate and separateDistrict, 1-3. biochemical denitrification district, 1-4. filtering area, 1-5. molysite denitrogenation dephosphorizing pond water inlet pipe, 1-6. returnsStream pipe, 1-7. dephosphorization agent adds and metering system, 1-8. agitating device, 1-9. dividing plate, 1-10. precipitationThing drain valve, 1-11. filter, 1-12. denitrogenation district filtrate, 1-13. molysite denitrogenation dephosphorizing pond overfalling weir,1-14. upper cover, 1-15. gas sampling pipe.
Fig. 2 is the structural representation in the biochemical filter tank of embodiment of the present invention baffling aeration.
In Fig. 2: 2. the biochemical filter tank of baffling aeration, 2-1. lower current area, 2-2. ascending zone, 2-3. dirtMud district, the biochemical filter tank of 2-4. baffling aeration water inlet pipe, the biochemical filter tank of 2-5. baffling aeration water distributor, 2-6.Lower current area filler, 2-7. lower current area aeration tube, 2-8. deflection plate, 2-9. ascending zone filler, 2-10. foldingStreaming aeration biochemical filter tank overfalling weir, 2-11. mud discharging valve.
Fig. 3 is the process chart of the embodiment of the present invention.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation. These accompanying drawings are the schematic diagram of simplification,Basic structure of the present invention is only described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment
As shown in FIG. 1 to 3, a kind of molysite denitrification dephosphorization apparatus of the present invention, comprises regulating reservoir, molysite denitrogenationThe biochemical filter tank 2 of dephosphorization pond 1 and baffling aeration, described regulating reservoir, molysite denitrogenation dephosphorizing pond 1 and deflector type expose to the sunThe biochemical filter tank 2 of gas is communicated with successively.
Described regulating reservoir comprises regulating reservoir water inlet pipe and regulating reservoir outlet pipe, for regulating high nitrogen phosphorus waste waterWater quality and the water yield.
Described molysite denitrogenation dephosphorizing pond 1 comprise dephosphorization be uniformly mixed reaction zone 1-1, depositing separation area 1-2,Biochemical denitrification district 1-3 and filtering area 1-4; Described dephosphorization is uniformly mixed reaction zone 1-1 middle and upper part and is provided with molysiteDenitrogenation dephosphorizing pond water inlet pipe 1-5 and reception are from the return duct 1-6 of the waste water in biochemical denitrification district, and dephosphorization is stirred mixedClose reaction zone top and be provided with dephosphorization agent and add and metering system 1-7, dephosphorization is uniformly mixed in the middle part of reaction zone and is provided with and stirsMix device 1-8, the bottom design that dephosphorization is uniformly mixed reaction zone has inclined floor or the curved plate of miter angle,Avoid producing current dead angle; Described dephosphorization is uniformly mixed between reaction zone and depositing separation area and is provided with dividing plate1-9, the base plate in dividing plate and molysite denitrogenation dephosphorizing pond forms water stream channel, and depositing separation area bottom design is taperedStructure, is provided with sediment discharge valve 1-10 in the lower end of pyramidal structure; Described 1-3 position, biochemical denitrification districtIn the top of depositing separation area 1-2, between depositing separation area and biochemical denitrification district, be provided with filter 1-11, filterTop is laid with iron filings; Described filtering area 1-4 is positioned at the top of biochemical denitrification district 1-3, in filtering area, establishesHave denitrogenation district filtrate 1-12, the top of filtering area is provided with molysite denitrogenation dephosphorizing pond overfalling weir 1-13, molysite denitrogenationDephosphorization pond overfalling weir connects molysite denitrogenation dephosphorizing pond outlet pipe; The top in molysite denitrogenation dephosphorizing pond is provided with in taperLid 1-14, the top of taper upper cover is provided with gas sampling pipe 1-15.
Described molysite denitrogenation dephosphorizing pond outlet pipe is communicated with the biochemical filter tank water inlet pipe 2-4 of baffling aeration.
The middle and upper part in the biochemical filter tank 2 of described baffling aeration is that cylindrical, bottom is conical structure, comprisesLower current area 2-1, ascending zone 2-2 and mud district 2-3; Described lower current area 2-1 is positioned at the biochemical filter of baffling aerationThe middle part of the cylindrical structural in pond, is cylindrical structural, and lower current area top is provided with the biochemical filter tank of baffling aerationThe biochemical filter tank water distributor 2-5 of water inlet pipe 2-4 and baffling aeration, lower current area middle part is provided with lower current area filler 2-6,Lower current area bottom is provided with lower current area aeration tube 2-7, and the bottom of described lower current area is provided with deflection plate 2-8, describedThe vertical section of deflection plate 2-8 is horn-like; Described ascending zone 2-2 is positioned at periphery, the baffling of lower current area 2-1The top of plate, ascending zone middle part is provided with ascending zone filler 2-9, and bottom is provided with ascending zone aeration tube, on ascending zoneThe exit of portion is provided with the biochemical filter tank overfalling weir 2-10 of baffling aeration; Described mud district 2-3 is positioned at deflector typeThe bottom of bottom, lower current area and the ascending zone in aeration biochemical filter tank, the bottom in mud district is provided with mud discharging valve2-11。
Adopt above-mentioned molysite denitrification dephosphorization apparatus to carry out a method for wastewater treatment, there are following steps:
1. waste water enters regulating reservoir by regulating reservoir water inlet pipe, regulating water quality and the water yield.
2. then waste water enters molysite denitrogenation dephosphorizing pond 1 by molysite denitrogenation dephosphorizing pond water inlet pipe 1-5, with fromThe backflow waste water of return duct 1-6 and adding and the dephosphorization agent of metering system 1-7 mixes, stirring from dephosphorization agentDevice 1-8 is uniformly mixed mixed liquor, carries out chemical dephosphorization reaction, and reacted waste water passes through dividing plateThe water stream channel that the base plate in 1-9 and molysite denitrogenation dephosphorizing pond forms enters depositing separation area 1-2 to carry out solid-liquid and dividesFrom, sediment sinks to the bottom of depositing separation area under the effect of gravity, by the sediment discharge of bottomValve 1-10 discharges.
3. the waste water after precipitation enters biochemical de-by the filter 1-11 between depositing separation area and biochemical denitrification districtNitrogen district 1-3, the iron filings on filter are dissolved as ferrous iron by waste water, enters biochemical denitrification district containing ferrous waste waterCarry out biological denitrificaion, the waste water after biochemical denitrification enters filtering area 1-4 and filters, and the waste water after filtration is logicalCross molysite denitrogenation dephosphorizing pond overfalling weir 1-13, molysite denitrogenation dephosphorizing pond outlet pipe and enter the biochemical filter of baffling aerationPond water inlet pipe 2-4.
4. the methane waste product that molysite denitrogenation dephosphorizing pond 1 produces is passed through molysite denitrogenation dephosphorizing pond taper upper cover topGas sampling pipe 1-15 collects discharge.
5. waste water is by the biochemical filter tank water inlet pipe 2-4 of baffling aeration, the biochemical filter tank of baffling aeration water distributor2-5 enters the lower current area 2-1 in the biochemical filter tank of baffling aeration, and the air that lower current area aeration tube 2-7 produces is with uselessThe water generation biochemical reaction that crosses in lower current area filler 2-6, lower current area filler 2-6 carried out waste water simultaneouslyFilter, waste water enters ascending zone 2-2 after by deflection plate 2-8, in ascending zone filler 2-9, biochemical reaction occurs,Ascending zone filler 2-9 filters waste water simultaneously, and the mud that lower current area and ascending zone produce sinks to mudDistrict 2-3, emits by the mud discharging valve 2-11 of bottom, mud district, the biochemical filter tank of baffling aeration placeWater after reason is by the biochemical filter tank of baffling aeration overfalling weir 2-10 qualified discharge.
6. the residue dirt that the biochemical filter tank 2 of the sediment that molysite denitrogenation dephosphorizing pond 1 produces and baffling aeration producesOutward transport after mud dehydration.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, related workPersonnel can carry out various change and amendment completely in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on description, must be according to claim scopeDetermine its technical scope.
Claims (2)
1. a molysite denitrification dephosphorization apparatus, is characterized in that: comprise regulating reservoir, molysite denitrogenation dephosphorizing pond (1)With the biochemical filter tank of baffling aeration (2), described regulating reservoir, molysite denitrogenation dephosphorizing pond (1) and baffling aerationBiochemical filter tank (2) is communicated with successively;
Described regulating reservoir comprises regulating reservoir water inlet pipe and regulating reservoir outlet pipe, for regulating high nitrogen phosphorus waste waterWater quality and the water yield;
Described molysite denitrogenation dephosphorizing pond (1) comprises that dephosphorization is uniformly mixed reaction zone (1-1), depositing separation area(1-2), biochemical denitrification district (1-3) and filtering area (1-4); Described dephosphorization is uniformly mixed reaction zone (1-1)Middle and upper part is provided with molysite denitrogenation dephosphorizing pond water inlet pipe (1-5) and receives the backflow from the waste water in biochemical denitrification districtPipe (1-6), dephosphorization is uniformly mixed reaction zone top and is provided with dephosphorization agent interpolation and metering system (1-7), dephosphorizationBe uniformly mixed reaction zone middle part and be provided with agitating device (1-8), the bottom design that dephosphorization is uniformly mixed reaction zone hasThe inclined floor of miter angle or curved plate, avoid producing current dead angle; Described dephosphorization is uniformly mixed reactionBetween district and depositing separation area, be provided with dividing plate (1-9), the base plate in dividing plate and molysite denitrogenation dephosphorizing pond forms currentPassage, the tapered structure of depositing separation area bottom design, is provided with sediment discharge in the lower end of pyramidal structureValve (1-10); Described biochemical denitrification district (1-3) is positioned at the top of depositing separation area (1-2), precipitation pointBetween abscission zone and biochemical denitrification district, be provided with filter (1-11), filter top is laid with iron filings; Described filtering area(1-4) be positioned at the top of biochemical denitrification district (1-3), in filtering area, be provided with denitrogenation district filtrate (1-12), mistakeThe top in filter district is provided with molysite denitrogenation dephosphorizing pond overfalling weir (1-13), and molysite denitrogenation dephosphorizing pond overfalling weir connects ironSalt denitrogenation dephosphorizing pond outlet pipe; The top in molysite denitrogenation dephosphorizing pond is provided with taper upper cover (1-14), taper upper coverTop be provided with gas sampling pipe (1-15);
Described molysite denitrogenation dephosphorizing pond outlet pipe is communicated with the biochemical filter tank water inlet pipe of baffling aeration (2-4);
The middle and upper part in the biochemical filter tank of described baffling aeration (2) is that cylindrical, bottom is conical structure, bagDraw together lower current area (2-1), ascending zone (2-2) and mud district (2-3); Described lower current area (2-1) is positioned at foldingThe middle part of the cylindrical structural in streaming aeration biochemical filter tank, is cylindrical structural, and lower current area top is provided with bafflingThe biochemical filter tank water distributor of formula aeration biochemical filter tank water inlet pipe (2-4) and baffling aeration (2-5), in lower current areaPortion is provided with lower current area filler (2-6), and lower current area bottom is provided with lower current area aeration tube (2-7), described lower current areaBottom be provided with deflection plate (2-8), the vertical section of described deflection plate (2-8) is horn-like; Described upper reachesDistrict (2-2) is positioned at the periphery of lower current area (2-1), the top of deflection plate, and ascending zone middle part is provided with ascending zoneFiller (2-9), bottom is provided with ascending zone aeration tube, and it is raw that the exit on ascending zone top is provided with baffling aerationChange filter tank overfalling weir (2-10); Described mud district (2-3) be positioned at the biochemical filter tank of baffling aeration bottom,The bottom of lower current area and ascending zone, the bottom in mud district is provided with mud discharging valve (2-11).
2. adopt the above-mentioned molysite denitrification dephosphorization apparatus method of carrying out wastewater treatment, it is characterized in that: have asLower step;
1. waste water enters regulating reservoir by regulating reservoir water inlet pipe, regulating water quality and the water yield;
2. then waste water enters molysite denitrogenation dephosphorizing pond (1) by molysite denitrogenation dephosphorizing pond water inlet pipe (1-5),Add and the dephosphorization of metering system (1-7) with backflow waste water from return duct (1-6) with from dephosphorization agentAgent mixes, and agitating device (1-8) is uniformly mixed mixed liquor, carries out chemical dephosphorization reaction, after reactionThe water stream channel that forms of the base plate of waste water by dividing plate (1-9) and molysite denitrogenation dephosphorizing pond enter precipitate and separateDistrict (1-2) carries out Separation of Solid and Liquid, and sediment sinks to the bottom of depositing separation area under the effect of gravity, logicalCrossing the sediment discharge valve (1-10) of bottom discharges;
3. the waste water after precipitation enters life by the filter (1-11) between depositing separation area and biochemical denitrification districtChange denitrogenation district (1-3), the iron filings on filter are dissolved as ferrous iron by waste water, enters life containing ferrous waste waterChange denitrogenation district and carry out biochemical denitrification, the waste water after biochemical denitrification enters filtering area (1-4) and filters, and filtersAfter waste water enter baffling by molysite denitrogenation dephosphorizing pond overfalling weir (1-13), molysite denitrogenation dephosphorizing pond outlet pipeFormula aeration biochemical filter tank water inlet pipe (2-4);
4. the methane waste product that molysite denitrogenation dephosphorizing pond (1) produces is by molysite denitrogenation dephosphorizing pond taper upper cover topGas sampling pipe (1-15) collect discharge;
5. waste water is by the biochemical filter tank water inlet pipe of baffling aeration (2-4) and the biochemical filter tank of baffling aeration water distributionPipe (2-5) enters the lower current area (2-1) in the biochemical filter tank of baffling aeration, and lower current area aeration tube (2-7) producesRaw air and the waste water generation biochemical reaction that crosses in lower current area filler (2-6), while lower current area filler(2-6) waste water is filtered, waste water enters ascending zone (2-2) after by deflection plate (2-8), upperBiochemical reaction occurs in stream district's filler (2-9), and ascending zone filler (2-9) filters waste water simultaneously,The mud that lower current area (2-1) and ascending zone (2-2) produce sinks to mud district (2-3), by mud districtThe mud discharging valve (2-11) of bottom emits, and the biochemical filter tank of baffling aeration water after treatment is by foldingStreaming aeration biochemical filter tank overfalling weir (2-10) qualified discharge;
6. the sediment that molysite denitrogenation dephosphorizing pond (1) produces and the biochemical filter tank of baffling aeration (2) produceOutward transport after excess sludge dehydration.
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| CN201610016350.6A CN105601040A (en) | 2016-01-11 | 2016-01-11 | Ferric salt nitrogen and phosphorous removal device |
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| CN109052839A (en) * | 2018-08-30 | 2018-12-21 | 常州大学 | A kind of low pollution river water cleaning device |
| CN109179900A (en) * | 2018-10-16 | 2019-01-11 | 常州大学 | A kind of pollution cellar water process all-in-one machine |
| CN109574244A (en) * | 2018-11-23 | 2019-04-05 | 武汉理工大学 | A kind of " saving oneself " type biofilter |
| CN110606626A (en) * | 2019-09-27 | 2019-12-24 | 西安建筑科技大学 | Synchronous nitrogen and phosphorus removal sewage treatment process |
| CN114409101A (en) * | 2022-03-31 | 2022-04-29 | 北京林业大学 | Nitrogen and phosphorus removal sewage treatment system and method based on iron reduction and oxidation circulation |
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| JP2013119081A (en) * | 2011-12-09 | 2013-06-17 | Kobelco Eco-Solutions Co Ltd | Treatment method and treatment apparatus for phosphorus-containing wastewater |
| JP2015077551A (en) * | 2013-10-16 | 2015-04-23 | 株式会社東芝 | Phosphorus elimination-type wastewater treatment process, and phosphorus elimination-type wastewater treatment system |
| CN203602456U (en) * | 2013-12-06 | 2014-05-21 | 浙江大学 | self-produced high-iron chemical dephosphorization-anaerobic iron oxidization biological denitrification integrated device |
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| CN108996747A (en) * | 2018-08-02 | 2018-12-14 | 常州大学 | A kind of Raw Drinking Water integrated treatment unit |
| CN109052833A (en) * | 2018-08-29 | 2018-12-21 | 常州大学 | A kind of recycled water process units |
| CN109052839A (en) * | 2018-08-30 | 2018-12-21 | 常州大学 | A kind of low pollution river water cleaning device |
| CN109179900A (en) * | 2018-10-16 | 2019-01-11 | 常州大学 | A kind of pollution cellar water process all-in-one machine |
| CN109574244A (en) * | 2018-11-23 | 2019-04-05 | 武汉理工大学 | A kind of " saving oneself " type biofilter |
| CN109574244B (en) * | 2018-11-23 | 2021-08-24 | 武汉理工大学 | Self-rescue type biological filter |
| CN110606626A (en) * | 2019-09-27 | 2019-12-24 | 西安建筑科技大学 | Synchronous nitrogen and phosphorus removal sewage treatment process |
| CN110606626B (en) * | 2019-09-27 | 2021-12-21 | 西安建筑科技大学 | Synchronous nitrogen and phosphorus removal sewage treatment process |
| CN114409101A (en) * | 2022-03-31 | 2022-04-29 | 北京林业大学 | Nitrogen and phosphorus removal sewage treatment system and method based on iron reduction and oxidation circulation |
| CN114409101B (en) * | 2022-03-31 | 2022-07-12 | 北京林业大学 | Nitrogen and phosphorus removal sewage treatment system and method based on iron reduction and oxidation circulation |
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