CN104628232A - Biological-membrane-filtration-type water treatment system - Google Patents

Biological-membrane-filtration-type water treatment system Download PDF

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Publication number
CN104628232A
CN104628232A CN201510099323.5A CN201510099323A CN104628232A CN 104628232 A CN104628232 A CN 104628232A CN 201510099323 A CN201510099323 A CN 201510099323A CN 104628232 A CN104628232 A CN 104628232A
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China
Prior art keywords
water
reactive tank
settling bath
treatment system
thickener
Prior art date
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Pending
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CN201510099323.5A
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Chinese (zh)
Inventor
顾超
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Nantong Zhongke Water Treatment Equipment Co Ltd
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Nantong Zhongke Water Treatment Equipment Co Ltd
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Publication date
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Priority to CN201510099323.5A priority Critical patent/CN104628232A/en
Publication of CN104628232A publication Critical patent/CN104628232A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/301Aerobic and anaerobic treatment in the same reactor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/302Nitrification and denitrification treatment

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  • 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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a biological-membrane-filtration-type water treatment system. The biological-membrane-filtration-type water treatment system comprises a reaction tank, wherein the reaction tank is internally provided with a filter material layer for filtration and an air ejection device is arranged below the filter material layer; a sedimentation tank for carrying out sedimentation treatment on water flowing through the reaction tank is arranged behind the reaction tank, a concentration tank having a concentrating effect is arranged behind the sedimentation tank and is internally provided with a filtration tank for filtering water flowing from the concentration tank with activated carbon; a circulating water tank is connected between the reaction tank and the sedimentation tank and is used for circulating the water flowing from the sedimentation tank to the reaction tank. The biological-membrane-filtration-type water treatment system is reasonable in structure and by the system, the sewage and wastewater can be purified and the water quality is effectively improved.

Description

Biofilm filtration formula water treatment system
Technical field
The present invention relates to a kind of water treatment system.
Background technology
Along with the increase of population and the acceleration of industrialization and urbanization, the usage quantity of water increases rapidly, and while therefore under various life, the amount of releasing of the stain disease such as water, plant effluent and livestock products waste water increases gradually, the pollution in rivers and creeks is also day by day serious.
The pollution in rivers and creeks not only can destroy the ecosystem, also can worsen the water quality at upper water source, increases the clean water treatment expense of the water-supply line of tap water supply, even can cause the function paralysis of clean water treatment factory.
Common slow filtering type water-supply line clean water treatment side is not used in the clean water treatment of large, the contaminated former water of water quality treatment variation, because the method is treated with medicaments not, the biology Decomposition of micropopulation can not remove the material such as nitrogen, manganese, bacterium, smell of trace from the turbidity of former water.
Another kind is the process of filtering type rapidly used when using slow filtering type process, the method be allow use that medicine carries out mixing, aggegation, former water after precipitation process is quickly through the stratum granulosum be made up of gravel, remove with physical filtering effect and be suspended material, therefore can realize water quality variation to a certain degree.
The degree of water pollution is different, and therefore the spendable situation of this processing mode is limited, and especially when the trend that dam construction stagnant water accumulation produces is very serious, the use of filter paper will be subject to very large obstruction.
Therefore in order to provide the high-quality tap water can feeling at ease to drink, just require to have a kind of preconditioning technique or further treatment technique, as preventing the upper pollutions of waterhead such as rivers and creeks and reply water quality deterioration scheme, worsening by reducing upper source quality the clean water treatment burden produced, improving the reliability of both depositing clean water treatment.
On the one hand, biological processes mode refers to the mode of efficiently carrying out biological self cleaning in reactive tank, and this kind of mode has honeycomb fashion (honeycomb), rotary disc-type and biofilm filtration formula etc.
The method that biofilm filtration mode water treatment system in these modes uses is, allow and need the stain disease etc. of purification to pass through in the biofilm filtering device being filled with microbial film filter material, precipitation, absorb polluted matter, and rely on the microorganism that microbial film filter material adheres to, by biological method oxidation, decomposing organic matter matter, thus purify water.
The water treatment system of this kind of biofilm filtration mode is for the treatment of not higher upper source water, rivers and creeks water, stain disease or the lower water of pollutant concentration.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructure, purifying treatment can be carried out to stain disease, effectively improve the biofilm filtration formula water treatment system of water quality.
Technical solution of the present invention is:
A kind of biofilm filtration formula water treatment system, is characterized in that: comprise reactive tank, arranging the filtration material layer for filtering, below filtration material layer, arranging air jet system in reactive tank; The settling bath water flowed in reactive tank being carried out to precipitation process is set after reactive tank, the thickener of inspissated has been set after settling bath, the filter vat filtered with the water of gac to concentrated concentrated flow is set in thickener; Circulating water channel is connected between reactive tank and settling bath, and the water flowed out from settling bath is being recycled to reactive tank.
Reactive tank has two, two reactive tank parallel connections.
System is separately provided with and medicine groove medicine being injected reactive tank.
Side in settling bath, is mounted with and leads wall the flow to the inflow water importing settling bath lower region come from reactive tank the 1st; At the opposite side of settling bath, be mounted with and lead wall the 2nd of the water importing thickener in settling bath the; Lead wall and the 2nd the 1st to lead between wall and be provided with stirrer.
System also includes agglutinant groove, and it is positioned at the outside of settling bath; Agglutinant groove is injected into the agglutinant in agglutinant groove in settling bath by agglutinant injection pump.
Be provided with in thickener and lead wall the flow to lower region in next inflow water importing thickener from settling bath the 3rd;
Be provided with multiple tilted plate in thickener, its effect is: in the process that the inflow water of leading wall importing lower region by the 3rd trickles to top, remove the particle in inflow water and particle block.
The present invention is rational in infrastructure, available than in the past more more effective structure purifying treatment stain disease, contribute to the raising of water quality.Especially, the multiple concentration stain disease effect of process can be obtained according to the present invention.That is, by biological method, allow the microbial digestion, the decomposing organic matter matter that are attached to microbial film filter material, purify water, no matter be the stain disease that pollutant concentration is not high, or the stain disease that pollutant concentration is very high, all can purifying treatment effectively.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the simplified block diagram about biofilm filtration formula water treatment system drawn according to one embodiment of present invention.
Fig. 2 is the detailed system figure of Fig. 1.
Fig. 3 is the control block diagram about biofilm filtration formula water treatment system drawn according to one embodiment of present invention.
Embodiment
A kind of biofilm filtration formula water treatment system, comprise reactive tank (111,112), settling bath (120), thickener (130), filter vat (140), circulating water channel (150) and controller (180).
The effect of reactive tank (111,112) is, periodically air supply, induces the nitrated and denitrification of former water, thus removes organic substance, nitrogen and the phosphorus in former water.
In the present embodiment, for realizing microbial film apposition growth and solid substance delay, reactive tank (111,112) can be aeration type fixed bed reaction groove, i.e. biological reaction tank, periodically air supply, induce nitrated and denitrification carrying out, organics removal matter, nitrogen and phosphorus.
Reactive tank can have two kinds of representational forms, fixed bed and moving-beds.The former is as the present embodiment, can be used for the pollution substance of liquid towards, and namely stain disease carries out the place of adsorbing and reacting.
In the outside of reactive tank (111,112), be mounted with the raw water pump (116) of former water supply to reactive tank (111,112).Controller (180) can according to the process volume controlled raw water pump (116) of reactive tank (111,112).
In the present embodiment, have two reactive tanks (111,112), their position is mutually side by side (parallel connection), is the 1st and the 2nd reactive tank (111,112) respectively.
Certainly, also only 1 reactive tank can be used, if but use two reactive tanks, namely the 1st and the 2nd reactive tank (111,112), then be more conducive to inducing the nitrated and denitrification of former water, remove the organic substance in former water, nitrogen and phosphorus, the water capacity of process also can be more.
1st and the 2nd reactive tank (111,112) is connected with settling bath (120) respectively.Namely the water of the 1st and the 2nd reactive tank (111,112) upper area flows to settling bath (120) respectively.
The structure of the 1st and the 2nd reactive tank (111,112) is the same.I.e. the 1st and the 2nd reactive tank (111,112) what adopt is all upward flow filtration mode, that is, air jet part material (114) is placed in the lower region of the filter material (113) of strainer, and air sprays towards (113) towards top.
Air jet part material (114) is connected to and is positioned at the outside air-blaster (115) of the 1st and the 2nd reactive tank (111,112).Air jet part material (114) also can be used as water jet portion material and uses, and such as, it also can be described as diffuser.
In the present embodiment, filtering is not by making filter material (113) expand, but realized by the mode making filter material compress, therefore can improve the whipability of suspended substance, and then make suspended substance maintain low-down level.
In the present embodiment, have medicine in the 1st and the 2nd reactive tank (111,112) and inject, for this reason, also need to use medicine groove (117) and medicine injection pump (118).
Medicine groove (117) is and the 1st and the 2nd reactive tank (111,112) adjacent, the effect of medicine injection pump (118) is, the medicine in medicine groove (115) is injected into the 1st and the 2nd reactive tank (111,112).
Then, settling bath (120) is connected to the 1st and the 2nd reactive tank (111,112) engineering rear, and its effect utilizes in proportion official post water to be suspended thing lifting, separate solid and liquid.
Settling bath (120) has very important effect, can say precipitation engineering efficiency about the processing efficiency of entire system.
Settling bath (120) is by stirring action and chemical action, from the 1st and the 2nd reactive tank (111,112) the inflow water flowed out in forms the flocs unit of solid form, and makes it be elevated rear remaining liquid to flow into engineering below by upper area.
Side in settling bath (120), is provided with the 1st and leads wall (121), and effect is that the inflow water flowed out from the 1st and the 2nd reactive tank (111,112) is imported to the lower region of settling bath (120).
Opposite side in settling bath (120), is provided with the 2nd and leads wall (122), and effect is that the water in settling bath (120) is imported thickener (130).
Lead between wall (121,122) in the 1st and the 2nd, be provided with by the agitator (124) of stirring action, its rotation is driven by engine (123).
In precipitation process, former water and metal-salt mix rapidly, therefore colloid can become unstable, form suspended substance and flocs unit, small flocs unit at agglutinant (such as, polymer coagulant) help under, in settling bath (120), form large flocs unit.
For this reason, for realizing the chemical action in settling bath (120), namely in order to increase absorption, stabilization, inner particles bridging action form ratio and the degree of flocs unit, can agglutinant be added, agglutinant groove (125) and agglutinant injection pump (126) therefore also will be installed.
Agglutinant groove (125) is placed in the outside of settling bath (120), and agglutinant injection pump (126) is injected into settling bath (120) the agglutinant in agglutinant groove (125).
At this moment, agglutinant is injected into the 1st and leads space between wall (121), the agglutinant of injection be made and from the 1st and the 2nd reactive tank (111,112), flow to the inflow water come be stirred in equably together.
Then, thickener (130) is connected to the rear of settling bath (120) engineering, plays concentrated effect, thus reduces the water ratio of the liquid sludge flowed out from settling bath (120).
In the process of drainage sunk well, the moisture of the pollutent (mud) of discharging from settling bath (120) is very high, is 95 ~ 98.8%, therefore needs to concentrate pollutent, and this operation is responsible for by thickener (130).Thickener (130) is also called thickening tank.
Therefore, can produce mud in the process of stain disease process, if the water ratio of mud is very high, weight and volume will be very large, and dealing with can be pretty troublesome, and the amount of organic substance can be a lot, easily addle.
Therefore, concentration process is necessary, and object is, by reducing liquid sludge water ratio, improving solid concentration, while reducing the volume of raw sludge, realizes innoxious and reduces ratio, processing rapidly, safely.
Concentration method has, and gravity concentration, floatation thickening, the center of circle concentrate, and the method used in the present embodiment is floatation thickening.
Floatation thickening groove can be used for the light weight sludge that process gravity method cannot concentrate.Sometimes, also can with coagulating bath and use, in the water having mud, with the pressure injection air of 2 ~ 5 ㎏/degree, make it be dissolved in water, at this moment can produce small bubble, these bubbles are attached on mud, and sludge blanket is climbed up on top of the water, and so just can use skimmer that mud is sent.
About 2 hours just can be concentrated to very high concentration, and namely 96 ~ 97%, therefore the advantage of the method is, also can be used for facility on a small scale.
For using this floatation thickening method, being provided with the 3rd and leading wall (131) in thickener (130), effect is flowing to the lower region that the inflow water come is poured into thickener from settling bath (120).
3rd lead wall (131) structure can to lead the structure of wall (121) identical with settling bath (120) the 1st.
In thickener (130), be provided with multiple tilted plate (132), its effect is, is leading inflow water that wall (131) imports from lower region to the process trickled in top by the 3rd, removes and flows into particle in water or particle block.
As describing above, after flocs unit is formed, in thickener (130), lower water is in the process of upwards trickling, and the particle in water and particle block deposit onboard under gravity, are removed.
Level meters can be dropped into again in the 3rd space of leading between wall (131), such as, by the input of the level meters of iron(ic) chloride etc., phosphorus and suspension solid substance coprecipitation can be made.
Sludge pump (161) imports to thickened sludge bin (160) thickened sludge, can store or discard.
Then, filter vat (140) is connected to the rear of thickener (130) engineering, and its effect is, flows to the inflow water come with activated carbon filtration from thickener (130), and discharges as flowing out water.
Except gac, sand, small crushed stone, stone chippings, charcoal, glass etc. also can be used to filter.
Then, circulating water channel (150) and the 1st and the 2nd reactive tank (111,112), settling bath (120) is connected, its effect is, the the 1st and the 2nd reactive tank is recycled to from the water in the 1st and the 2nd reactive tank (111,112) and settling bath (120).
Circulating water channel (150) is connected to water circulating pump (151) and inverse gesture pump (152), the former effect is, from the 1st and the 2nd reactive tank (111,112) water cycle and in settling bath (120) is come in, the latter is in the 1st and the 2nd reactive tank (111,112) the water recycle in circulating water channel (150).
In addition, be also mounted with sludge pump (161) around circulating water channel (150), its effect is, the mud in settling bath (120) and thickener (130) is imported thickened sludge bin (160).
Finally controller (180), working is control the 1st and the 2nd reactive tank (111,112), settling bath (120), thickener (130), filter vat (140), circulating water channel (150) and the various devices that are connected with them, make from the 1st and the 2nd reactive tank (111,112) the former water flow to, by filter vat (140), flows out as outflow water.
As shown in Figure 3, controller (180) is made up of central processing unit (181, CPU), internal memory (182, MEMORY) and auxiliary circuit (183, SUPPORT CIRCUIT).
In the present embodiment, control the 1st and the 2nd reactive tank (111,112), settling bath (120), thickener (130), filter vat (140), circulating water channel (150) and the various devices that are connected with them, make from the 1st and the 2nd reactive tank (111,112) the former water flowed out in by filter vat (140) as flow out water flow out, central processing unit (181) can be can industrialization use multiple computer processor in one.
Internal memory (182, MEMORY) is connected with central processing unit (181).Internal memory (182) is the recording medium of computer-readable, can be arranged on locally or remotely, such as, the storer easy and simple to handle of the arbitrary stored digital form such as random access memory (RAM), ROM, floppy disk, hard disk, at least will have more than one.
Auxiliary circuit (183, SUPPORT CIRCUIT) and central processing unit (181) be combined with each other, and support the exemplary functions of treater.Auxiliary circuit can be made up of (183) high-speed buffer, power supply, clock circuit, input/output circuitry and subsystem etc.
In the present embodiment, controller (180) controls the 1st and the 2nd reactive tank (111,112), settling bath (120), thickener (130), filter vat (140), circulating water channel (150) and the various devices that are connected with them, make from the 1st and the 2nd reactive tank (111,112) flow to the former water come in be flowed out as flowing out water by filter vat (140), this series of process all can be stored in internal memory (182).
As a rule, software program is all (182) that can be stored in internal memory, but software program also can be stored by other central processing unit (Shui Hu city) or perform.
Although describe in illustrating, all processes of the present invention are all rely on software program to perform, and in fact, have at least a part of process that hardware also can be relied on to perform.
Therefore, implementation process of the present invention realizes by the software performed in computer system, can directly by hardware implementing such as circuit, and the combination also by software and hardware realizes.
In sum, from the present embodiment, use the present invention can with structure purifying treatment stain disease more more effective than in the past, namely make from the 1st and the 2nd reactive tank (111,112) the former water flowed out in is in the process of settling bath (120), thickener (130) and filter vat (140), allow cleaner outflow current out, thus contribute to the raising of water quality.
According to the present invention, the microorganism be attached on microbial film filter material is digested by biological method, decomposing organic matter, purify water, no matter be the stain disease that Pollutant levels are not high, or the stain disease that Pollutant levels are very high, all can purifying treatment effectively.
Application of the present invention is not limited only to the situation of the embodiment described herein, only otherwise depart from thought of the present invention and range of application, just can carry out diversified correction and distortion when applying, this is self-explantory for the people possessing this technical field ABC.So this kind of correction and distortion are all belong to Patent request scope of the present invention.

Claims (6)

1. a biofilm filtration formula water treatment system, is characterized in that: comprise reactive tank, arranging the filtration material layer for filtering, below filtration material layer, arranging air jet system in reactive tank; The settling bath water flowed in reactive tank being carried out to precipitation process is set after reactive tank, the thickener of inspissated has been set after settling bath, the filter vat filtered with the water of gac to concentrated concentrated flow is set in thickener; Circulating water channel is connected between reactive tank and settling bath, and the water flowed out from settling bath is being recycled to reactive tank.
2. biofilm filtration formula water treatment system according to claim 1, is characterized in that: reactive tank has two, two reactive tank parallel connections.
3. biofilm filtration formula water treatment system according to claim 1 and 2, is characterized in that: system is separately provided with and medicine groove medicine being injected reactive tank.
4. biofilm filtration formula water treatment system according to claim 1 and 2, is characterized in that: the side in settling bath, is mounted with and leads wall the flow to the inflow water importing settling bath lower region come from reactive tank the 1st; At the opposite side of settling bath, be mounted with and lead wall the 2nd of the water importing thickener in settling bath the; Lead wall and the 2nd the 1st to lead between wall and be provided with stirrer.
5. biofilm filtration formula water treatment system according to claim 1 and 2, it is characterized in that: system also includes agglutinant groove, it is positioned at the outside of settling bath; Agglutinant groove is injected into the agglutinant in agglutinant groove in settling bath by agglutinant injection pump.
6. biofilm filtration formula water treatment system according to claim 1 and 2, is characterized in that: be provided with in thickener and lead wall the flow to lower region in next inflow water importing thickener from settling bath the 3rd;
Be provided with multiple tilted plate in thickener, its effect is: in the process that the inflow water of leading wall importing lower region by the 3rd trickles to top, remove the particle in inflow water and particle block.
CN201510099323.5A 2015-03-06 2015-03-06 Biological-membrane-filtration-type water treatment system Pending CN104628232A (en)

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CN201510099323.5A CN104628232A (en) 2015-03-06 2015-03-06 Biological-membrane-filtration-type water treatment system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109574380A (en) * 2018-11-22 2019-04-05 湖州纳琦环保科技有限公司 A kind of sewage treatment process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020031120A (en) * 2002-02-21 2002-04-26 주식회사 자연사랑바이오텍 Dirty and waste water purifying system
CN202156978U (en) * 2011-07-01 2012-03-07 北京中恒意美环境工程技术有限公司 High salinity waste water purification device
CN104355478A (en) * 2014-10-14 2015-02-18 浙江钱江纺织印染有限公司 Printing and dyeing sewage treatment system
CN204569651U (en) * 2015-03-06 2015-08-19 南通中科水处理设备有限公司 Biofilm filtration formula water treatment system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020031120A (en) * 2002-02-21 2002-04-26 주식회사 자연사랑바이오텍 Dirty and waste water purifying system
CN202156978U (en) * 2011-07-01 2012-03-07 北京中恒意美环境工程技术有限公司 High salinity waste water purification device
CN104355478A (en) * 2014-10-14 2015-02-18 浙江钱江纺织印染有限公司 Printing and dyeing sewage treatment system
CN204569651U (en) * 2015-03-06 2015-08-19 南通中科水处理设备有限公司 Biofilm filtration formula water treatment system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109574380A (en) * 2018-11-22 2019-04-05 湖州纳琦环保科技有限公司 A kind of sewage treatment process

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Application publication date: 20150520