CN109502912A - A kind of highly effective dephosphorizing denitrification miniaturization membrane process domestic sewage treating apparatus - Google Patents
A kind of highly effective dephosphorizing denitrification miniaturization membrane process domestic sewage treating apparatus Download PDFInfo
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- 239000012528 membrane Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 238000004062 sedimentation Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000003750 conditioning effect Effects 0.000 claims abstract description 15
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- 238000000429 assembly Methods 0.000 claims abstract description 9
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- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000005273 aeration Methods 0.000 claims abstract description 7
- 238000010992 reflux Methods 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 5
- 230000037452 priming Effects 0.000 claims description 3
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- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
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- 230000008901 benefit Effects 0.000 abstract description 3
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- 238000012545 processing Methods 0.000 description 9
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- 239000011574 phosphorus Substances 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 238000013461 design Methods 0.000 description 3
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- 238000004090 dissolution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
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- 241000700605 Viruses Species 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
-
- 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
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention relates to a kind of highly effective dephosphorizing denitrifications to minimize membrane process domestic sewage treating apparatus, conditioning tank, membrane biological reaction apparatus, dephosphorization sedimentation basin and clear water reserviors including passing sequentially through pipeline connection；Membrane biological reaction apparatus includes anaerobic pond, aerobic tank, membrane separation assemblies, nitrification liquid reflux conveying device and aeration tube assembly, aerobic tank is arranged in anaerobic pond, conditioning tank passes through pipeline respectively and is connected to anaerobic pond and aerobic tank, membrane separation assemblies are arranged in aerobic tank, its liquid outlet passes through the inlet communication of the first liquid transporting apparatus and dephosphorization sedimentation basin, anaerobic pond passes through the inlet communication of second liquid conveying device and dephosphorization sedimentation basin, aeration tube assembly is layed in the bottom of pond of aerobic tank, and external air transport device, it is connected between aerobic tank and anaerobic pond by return pipe.Advantage: it can be handled according to the principal polluter flexible modulation in sewage, so that sewage treatment stably reaching standard, integration degree is high, and occupied area is small.
Description
Technical field
The present invention relates to sewage disposal technology, in particular to a kind of highly effective dephosphorizing denitrification miniaturization membrane process domestic sewage processing
Device.
Background technique
The sewage generated during human lives, is one of primary pollution source of water body, mainly food waste waste water, flush the toilet it is useless
Water and wash water.Its amount and living standard have substantial connection.Contain large amount of organic in sanitary sewage, as cellulose, starch,
Carbohydrate and fat protein etc.；Also often contain pathogen, virus and parasitic ovum；Chloride, sulfate, the phosphoric acid of inorganic salts
Salt, bicarbonate and sodium, potassium, calcium, magnesium etc..Under anaerobic bacteria effect, easily raw odorant.Some small-sized sanitary sewages are controlled
Reason, such as rural area, hotel, food and beverage enterprise, services sites etc. have personnel few, and sanitary sewage generates few and raw with seasonal variations
The yield of sewage living changes feature greatly, causes institute sewerage COD, NH3N and total phosphorus etc. are exceeded, cannot reach associated emissions
Standard requirements, in the case where current Environmental Protection in China requires increasing situation, there is very big environmental pollution hidden danger and environment pipes
Risk is managed, is badly in need of a kind of scientific and effective control measures and fundamentally solves the problems, such as this.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of miniaturization membrane process domestic sewage processing of highly effective dephosphorizing denitrification
Device effectively overcomes the defect of the prior art.
The technical scheme to solve the above technical problems is that a kind of highly effective dephosphorizing denitrification miniaturization embrane method life is dirty
Water treatment facilities, conditioning tank, membrane biological reaction apparatus, dephosphorization sedimentation basin and clear water reserviors including passing sequentially through pipeline connection；On
Membrane biological reaction apparatus is stated to include anaerobic pond, aerobic tank, membrane separation assemblies, nitrification liquid reflux conveying device and be aerated tube assembly,
Above-mentioned aerobic tank is arranged in above-mentioned anaerobic pond, and above-mentioned conditioning tank passes through pipeline respectively and is connected to above-mentioned anaerobic pond and aerobic tank,
Above-mentioned membrane separation assemblies are arranged in above-mentioned aerobic tank, and liquid outlet is precipitated by the first liquid transporting apparatus and above-mentioned dephosphorization
The inlet communication in pond, above-mentioned anaerobic pond pass through the inlet communication of second liquid conveying device and above-mentioned dephosphorization sedimentation basin, above-mentioned exposure
Tracheae component is layed in the bottom of pond of above-mentioned aerobic tank, and passes through the external air transport device of pipeline, above-mentioned aerobic tank and anaerobic pond
Between be connected to by return pipe, connection is equipped with for liquid in above-mentioned aerobic tank is defeated into above-mentioned anaerobic pond on above-mentioned return pipe
The nitrification liquid reflux conveying device sent.
The beneficial effects of the present invention are: structure design is simple, reasonable, can flexibly be adjusted according to the principal polluter in sewage
Section processing, so that sewage treatment stably reaching standard, integration degree is high, and occupied area is small, can bring certain economic benefit and society
It can benefit.
Based on the above technical solution, the present invention can also be improved as follows.
Further, be equipped with first pump housing in above-mentioned conditioning tank, above-mentioned first pump housing output end pass through respectively pipeline with it is above-mentioned
Anaerobic pond is connected to above-mentioned aerobic tank, and is respectively equipped with automatically controlled flow valve on pipeline at two.
Beneficial effect using above-mentioned further scheme is can to each lead into aerobic tank and anaerobic pond according to accurate control
The uninterrupted and open and-shut mode of interior water body achieve the effect that precisely to be handled according to sewage characteristic, and treatment effect is splendid, resource point
With relatively reasonable.
Further, the second class pump housing is equipped in above-mentioned dephosphorization sedimentation basin, the output end of the above-mentioned second class pump housing passes through pipeline
It is connected to above-mentioned clear water reserviors.
Beneficial effect using above-mentioned further scheme is the good transportation conducive to clear water.
Further, above-mentioned first liquid transporting apparatus and second liquid conveying device are self priming pump.
Beneficial effect using above-mentioned further scheme is that suction is big, and conveying effect is good.
Further, above-mentioned air transport device is pneumatics compressor or air blower.
Beneficial effect using above-mentioned further scheme is using more convenient.
It further, further include controller, above controller is defeated with above-mentioned first pump housing, second pump housing, the first liquid respectively
Send device, second liquid conveying device, above-mentioned air transport device and two above-mentioned automatically controlled flow valve electrical connections.
Automation, intelligentized control operation, operation letter are that by using the beneficial effect of above-mentioned further scheme
Singly, conveniently.
Further, above-mentioned dephosphorization settling tank includes that sedimentation pond body and dephosphorizing reactor, above-mentioned dephosphorizing reactor are set to
It states in settling tank body, with inlet and liquid outlet, above-mentioned inlet constitutes the import of above-mentioned dephosphorization sedimentation basin, and above-mentioned second
The class pump housing is set in above-mentioned settling tank body.
Beneficial effect using above-mentioned further scheme is can be to the phosphorus in sewage by two links of dephosphorization and sedimentation
It is effectively removed with impurity, treatment effect is preferable.
Further, above-mentioned dephosphorizing reactor is cylinder closed at both ends, and baffle plate is equipped between internal both ends, above-mentioned to remove
Phosphorus reaction device one end is equipped with import, and the other end is equipped with water outlet.
Beneficial effect using above-mentioned further scheme is that result design is reasonable, extends water body flow path, dephosphorization effect
Fruit is preferable.
It further, further include dephosphorization agent dissolving tank, above-mentioned dephosphorizing reactor one end is additionally provided with dephosphorization agent adding mouth, above-mentioned to remove
Phosphorus agent dissolution pot bottom is equipped with the outlet tube that be connected to above-mentioned dephosphorization agent adding mouth, and the outlet tube is equipped with flow control valve and defeated
Send pump.
Dephosphorization agent can accurately be controlled according to water body amount in dephosphorizing reactor using the beneficial effect of above-mentioned further scheme
Injected volume achievees the effect that resources configuration optimization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that highly effective dephosphorizing denitrification of the invention minimizes membrane process domestic sewage treating apparatus.
In attached drawing, parts list represented by the reference numerals are as follows:
1, conditioning tank, 2, membrane biological reaction apparatus, 3, dephosphorization sedimentation basin, 4, clear water reserviors, 5, dephosphorization agent dissolving tank, 11,
One pump housing, 21, anaerobic pond, 22, aerobic tank, 23, membrane separation assemblies, 24, nitrification liquid reflux conveying device, 25, aeration tube assembly,
26, air transport device, 31, sedimentation pond body, 32, dephosphorizing reactor, 111, automatically controlled flow valve, 221, second liquid conveying dress
It sets, the 231, first liquid transporting apparatus.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Embodiment: as shown in Figure 1, the highly effective dephosphorizing denitrification miniaturization membrane process domestic sewage treating apparatus of the present embodiment includes
Pass sequentially through conditioning tank 1, membrane biological reaction apparatus 2, dephosphorization sedimentation basin 3 and the clear water reserviors 4 of pipeline connection；Above-mentioned conditioning tank 1 is used
To store sewage, for handling sewage, above-mentioned dephosphorization sedimentation basin 3 is used for treated sewage above-mentioned membrane biological reaction apparatus 2
Dephosphorization；
Above-mentioned membrane biological reaction apparatus 2 includes anaerobic pond 21, aerobic tank 22, membrane separation assemblies 23, nitrification liquid reflux conveying
Device 24 and aeration tube assembly 25, above-mentioned aerobic tank 22 are arranged in above-mentioned anaerobic pond 21, and above-mentioned conditioning tank 1 passes through pipeline respectively
It is connected to above-mentioned anaerobic pond 21 and aerobic tank 22, above-mentioned membrane separation assemblies 23 are arranged in above-mentioned aerobic tank 22, liquid outlet
By the inlet communication of the first liquid transporting apparatus 231 and above-mentioned dephosphorization sedimentation basin 3, above-mentioned anaerobic pond 21 is defeated by second liquid
The inlet communication of device 221 Yu above-mentioned dephosphorization sedimentation basin 3 is sent, above-mentioned aeration tube assembly 25 is layed in the pond of above-mentioned aerobic tank 22
Bottom, and by the external air transport device 26 of pipeline, it is connected between above-mentioned aerobic tank 22 and anaerobic pond 21 by return pipe, it is above-mentioned
Connection is equipped with the nitrification liquid reflux conveying for conveying liquid in above-mentioned aerobic tank 22 into above-mentioned anaerobic pond 21 on return pipe
Device 24.
In treatment process, the mode of processing is determined previously according to the ingredient of sewage in conditioning tank 1, such as: for farm
The organic wastewater of high concentration then uses anaerobic treatment process, the sanitary sewage in conditioning tank 1 is passed through in anaerobic pond 21, so that
Dissolved organic matter largely removes, and kills disease carrying germ, is being passed through progress dephosphorization processing in dephosphorization settling tank 3 later, wherein
COD removal rate is up to 80%, BOD5 removal rate up to 96%, SS removal rate up to 78% in sewage, using anaerobic bio-treated by detesting
Aerobe fermentation produces biogas, reduces COD in sewage, and BOD content while realizes resource utilization；Organic pollutant contains in sanitary sewage
When measuring higher, aerobic metabolism is carried out for substrate and is released energy step by step by a series of biochemical reaction, finally with low energy position
Inorganic matter settles out, and reaches innoxious requirement, then is passed through in dephosphorization settling tank 3 and carries out dephosphorization processing, two kinds of processing modes
Progress can be synchronized, a progress can also be individually selected.
It should be understood that the electric heater unit heated to environment in pond is equipped in anaerobic pond 21, for adjusting anaerobism hair
The environment temperature of ferment is conducive to good Anaerobic Treatment.
Preferably, be equipped with first pump housing 11 in above-mentioned conditioning tank 1, above-mentioned first pump housing, 11 output end pass through respectively pipeline with
Above-mentioned anaerobic pond 21 is connected to above-mentioned aerobic tank 22, and is respectively equipped with automatically controlled flow valve 111 on pipeline at two, passes through two electricity
Control flow valve 111 can uninterrupted (size and pipeline open and-shut mode) at Electronic control two on pipeline, operate it is more flexible, can
To need flexible modulation processing mode according to the removal of Ammonia Nitrogen in Municipal Wastewater, total nitrogen and total phosphorus.
Preferably, being equipped with second pump housing 33 in above-mentioned dephosphorization sedimentation basin 3, the output end of above-mentioned second pump housing 33 passes through pipeline
It is connected to above-mentioned clear water reserviors 4, conducive to the conveying of clear water after precipitating.
Preferably, above-mentioned first liquid transporting apparatus 231 and second liquid conveying device 221 are self priming pump, suction compared with
It is good, conducive to the good transportation of water body.
Preferably, above-mentioned air transport device 26 is pneumatics compressor or air blower, it can be with by air transport device 26
Effectively to oxygen is conveyed in water body in aerobic tank 22, conducive to effective Aerobic Process for Treatment of sewage.
Preferably, further include controller, above controller respectively with above-mentioned first pump housing 11, second pump housing 31, the first liquid
Body conveying device 231, second liquid conveying device 221, above-mentioned air transport device 26 and two above-mentioned automatically controlled flow valves 111
Electrical connection can be realized automation control by controller, operate fast, intelligence, the controller and remote control terminal
Communication connection, realizes long-range control, which can be PC machine or computer or plate etc..
Preferably, above-mentioned dephosphorization settling tank 3 includes that sedimentation pond body 31 and dephosphorizing reactor 32, above-mentioned dephosphorizing reactor 32 are set
Be placed in above-mentioned sedimentation pond body 31, with inlet and liquid outlet, above-mentioned inlet constitute above-mentioned dephosphorization sedimentation basin 3 into
Mouthful, above-mentioned second pump housing 33 is set in above-mentioned sedimentation pond body 31, and treated, and water body carries out going to remove water in dephosphorizing reactor 32
Most phosphorus in body enters back into sedimentation in sedimentation pond body 31 later and removes a large amount of impurity in water body, and treatment effect is preferable.
Preferably, above-mentioned dephosphorizing reactor 32 is cylinder closed at both ends, baffle plate is equipped between internal both ends, it is above-mentioned
32 one end of dephosphorizing reactor is equipped with import, and the other end is equipped with water outlet, reasonable in design, goes conducive to the effective of phosphorus in water body
It removes.
It in some embodiments, further include dephosphorization agent dissolving tank, above-mentioned dephosphorizing reactor one end is additionally provided with dephosphorization agent addition
Mouthful, above-mentioned dephosphorization agent dissolution pot bottom is equipped with the outlet tube being connected to above-mentioned dephosphorization agent adding mouth, which is equipped with flow
Control valve and delivery pump can accurately be passed through dephosphorization agent by flow control valve and delivery pump into dephosphorizing reactor 32, excellent
Change the effect of processing, reasonable distribution resource.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of highly effective dephosphorizing denitrification minimizes membrane process domestic sewage treating apparatus, it is characterised in that: including passing sequentially through pipeline
Conditioning tank (1), membrane biological reaction apparatus (2), dephosphorization sedimentation basin (3) and the clear water reserviors (4) of connection；
The membrane biological reaction apparatus (2) includes anaerobic pond (21), aerobic tank (22), membrane separation assemblies (23), nitrification liquid reflux
Conveying device (24) and aeration tube assembly (25), aerobic tank (22) setting is in the anaerobic pond (21), the conditioning tank
(1) it is connected to respectively by pipeline with the anaerobic pond (21) and aerobic tank (22), the membrane separation assemblies (23) are arranged described
In aerobic tank (22), liquid outlet is connected by the import of the first liquid transporting apparatus (231) and the dephosphorization sedimentation basin (3)
Logical, the anaerobic pond (21) passes through the inlet communication of second liquid conveying device (221) and the dephosphorization sedimentation basin (3), described
Aeration tube assembly (25) is layed in the bottom of pond of the aerobic tank (22), and by the external air transport device of pipeline (26), described
It is connected between aerobic tank (22) and anaerobic pond (21) by return pipe, connection is equipped with for by the aerobic tank on the return pipe
(22) nitrification liquid that interior liquid is conveyed into the anaerobic pond (21) flows back conveying device (24).
2. a kind of highly effective dephosphorizing denitrification according to claim 1 minimizes membrane process domestic sewage treating apparatus, feature exists
In: first pump housing (11) are equipped in the conditioning tank (1), first pump housing (11) output end passes through pipeline respectively to be detested with described
Oxygen pond (21) is connected to the aerobic tank (22), and is respectively equipped with automatically controlled flow valve (111) on pipeline at two.
3. a kind of highly effective dephosphorizing denitrification according to claim 2 minimizes membrane process domestic sewage treating apparatus, feature exists
In being equipped with second pump housing (33) in: the dephosphorization sedimentation basin (3), the output end of second pump housing (33) by pipeline with it is described
Clear water reserviors (4) connection.
4. a kind of highly effective dephosphorizing denitrification according to claim 3 minimizes membrane process domestic sewage treating apparatus, feature exists
In: first liquid transporting apparatus (231) and second liquid conveying device (221) be self priming pump.
5. a kind of highly effective dephosphorizing denitrification according to claim 4 minimizes membrane process domestic sewage treating apparatus, feature exists
In: the air transport device (26) is pneumatics compressor or air blower.
6. a kind of highly effective dephosphorizing denitrification according to claim 5 minimizes membrane process domestic sewage treating apparatus, feature exists
In: it further include controller, the controller is filled with first pump housing (11), second pump housing (31), the conveying of the first liquid respectively
Set (231), second liquid conveying device (221), the air transport device (26) and two automatically controlled flow valves (111)
Electrical connection.
7. a kind of highly effective dephosphorizing denitrification according to any one of claims 1 to 6 minimizes membrane process domestic sewage treating apparatus,
It is characterized by: the dephosphorization settling tank (3) includes sedimentation pond body (31) and dephosphorizing reactor (32), the dephosphorizing reactor
(32) it is set in the sedimentation pond body (31), with inlet and liquid outlet, the inlet constitutes the dephosphorization precipitating
The import in pond (3), second pump housing (33) are set in the sedimentation pond body (31).
8. a kind of highly effective dephosphorizing denitrification according to claim 7 minimizes membrane process domestic sewage treating apparatus, feature exists
In: the dephosphorizing reactor (32) is cylinder closed at both ends, is equipped with baffle plate, the dephosphorizing reactor between internal both ends
(32) one end is equipped with inlet, and the other end is equipped with water outlet.
9. a kind of highly effective dephosphorizing denitrification according to claim 7 minimizes membrane process domestic sewage treating apparatus, feature exists
In: it further include dephosphorization agent dissolving tank (5), described dephosphorizing reactor (32) one end is additionally provided with dephosphorization agent adding mouth, the dephosphorization agent
Dissolving tank (5) bottom is equipped with the outlet tube that be connected to the dephosphorization agent adding mouth, and the outlet tube is equipped with flow control valve and defeated
Send pump.
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| JP2004033863A (en) * | 2002-07-01 | 2004-02-05 | Fuji Clean Kogyo Kk | Sewage treating vessel and method for treating sewage |
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Application publication date: 20190322 |