CN103466897A - Waste water processing method - Google Patents
Waste water processing method Download PDFInfo
- Publication number
- CN103466897A CN103466897A CN2013104484019A CN201310448401A CN103466897A CN 103466897 A CN103466897 A CN 103466897A CN 2013104484019 A CN2013104484019 A CN 2013104484019A CN 201310448401 A CN201310448401 A CN 201310448401A CN 103466897 A CN103466897 A CN 103466897A
- Authority
- CN
- China
- Prior art keywords
- sewage
- water
- waste water
- tank
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a waste water processing method. Firstly, sewage is introduced into a regulation pool; after passing through a sewage flow constant equipment, the sewage with inconstant flow becomes fluid with relatively constant flow; then the fluid enters an acidification hydrolyzation pool, lax anaerobic fermentation treatment is carried out, the fluid enters a strict anaerobism pool to be fermented in an anaerobism mode, low molecular weight organic matter is decomposed, methane is generated, and COD and BOD are removed; the sewage enters a pulse turbulent membrane bioreactor, and ammonia nitrogen and phosphorus in the sewage are removed deeply through membrane biological response treatment; the sewage is decolored with decolorising agent A, and the chrominance of the sewage is made to be 50-80; the sewage is further decolored with decolorising agent B, and the chrominance of the sewage is made to be lower than 50; finally, the waste water processed with the decolorising agent B is discharged into a settling pool, 0.5-1Kg flocculating agent aluminum polychlorid or polymeric ferric sulfate is added to every cubic meter of the waste water, and the waste water stands still for 1-2h; clean water is discharged, and the quality of the water clean meets the national level-A discharge standards.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment, belong to field of environment protection.
Background technology
COD in waste water, BOD, total nitrogen, total phosphorus and colourity are to weigh that can waste water discharge or the important indicator of reuse.GB18919-2002 " urban wastewater treatment firm pollutant emission standard " one-level A standard code: COD is that 50, BOD is 10; Colourity (extension rate method) is 30; Total nitrogen 15, total phosphorus 0.5.The treatment process of waste water is generally at first to carry out anaerobic treatment, then aerobic treatment, the processing of then decolouring after the film biological treatment, then, after clarification, just can discharge clear water.But often, because the treatment process of stages is strict not, cause effluent quality poor, be difficult to reach national grade one discharge standard.Reason mainly contains:
A sewage hundreds of thousands of ton that sewage work processes every day, in the middle of one day, the discharge of sewage of each time period is all different, the discharge of sewage alters a great deal, flow velocity is unstable, therefore must carry out Flow-rate adjustment to pending sewage, make it relatively stable, otherwise that the effluent quality index fluctuates is larger, does not even reach emission standard.Current sewage work adopts the problem that several sewage reservoirs solve instability of flow of building more, and adopts under meter to realize the constant current of sewage, although this method is simple and easy to do, causes sewage work to take the land resources of a large amount of preciousnesses; And sewage is more dirty, contain a large amount of goos, the under meter long period of soaking, in sewage, causes flow meter from being blocked, and the precise part of the inside is easily corrosion also, maintenance difficult, replacement cost is high.
It is an important operation in sewage treatment process that the decolouring of sewage is processed, and is also the difficult point of sewage treatment process.From the sewage disposal technology of current application, say, the method that can effectively remove Colority of Sewage Water has absorption method, Coagulation Method, biological process, membrane separation process, chemical oxidization method one-level electricity flocculence etc.Wherein chemical oxidization method has technical maturity, cost is low, processing efficiency is high, and quality is good.The principle of chemical oxidation decolouring is utilize oxygenant to destroy the unsaturated group of the substance that show color in sewage and chromophoric group and reach the decolouring purpose.Discoloring agent with strong oxidisability also has the effect of decomposing substance that show color, reaches the purpose of thorough decolouring.Therefore chemical oxidization method can be applicable to be difficult to utilize the sewage decoloring of other method decolouring to be processed.But the discoloring agent major ingredient that chemical oxidization method is used at present is Losantin, clorox, hypochlorous acid etc., although therefore the sewage colourity after decolouring is low, but water quality contains a small amount of reactive chlorine, and reactive chlorine has strong toxicity to biomass cells, can endanger waterplant and animal, and threaten the mankind's health.
Membrane bioreactor (Membrane Bio-Reactor) is called for short MBR, it is a kind of new type water treatment technology combined with biological processing unit by film separation unit, it utilizes membrane separation plant that the active sludge in biochemical reaction tank and larger molecular organics are held back, save second pond, thereby reduce the sewage treatment facility floor space, and hang down sludge loading by maintenance and reduce surplus sludge volume.But membrane bioreactor is vulnerable to mud or particulate to be adsorbed on the film silk and to result in blockage, and causes water outlet discontinuous, and drainage efficiency is low, and the work-ing life of film is short.This situation is very serious when shutting down.
Sewage source complexity due to urban wastewater treatment firm, COD in sewage, BOD, total nitrogen, total phosphorus and colourity are very high, and the technological design of sewage work has certain requirement to influent quality, if influent quality exceeds standard, the effluent quality of sewage work is difficult to reach one-level A emission standard or reaches the cost prohibitive that discharging standards is paid, and causes secondary pollution.
Summary of the invention
The objective of the invention is to disclose the method for wastewater treatment that a kind of technique is simple, effluent quality meets or exceeds discharging standards.
Technical scheme of the present invention is as follows:
Method of wastewater treatment comprises following sequential steps:
(1) the constant adjusting of wastewater flow;
(2) the decomposition anaerobic treatment step by step of constant current waste water and aerobic treatment;
(3) pulse of waste water turbulent flow biomembrane reaction is processed;
(4) two-step bleaching of waste water is processed;
(5) clarifying treatment.
The constant adjusting of described wastewater flow, be that at first waste water enter equalizing tank, after the constant equipment of the discharge of sewage of placing in equalizing tank, becomes the metastable fluid of flow, and the constant device structure of the described discharge of sewage comprises sliding bar and movable water tank; Described sliding bar is provided with positioning lock and lower positioning lock; Described movable water tank is enclosed within on the described sliding bar between described upper positioning lock and lower positioning lock; Described movable water tank the inside is provided with fixing water seal and falls to cover; Described water seal is fallen to cover the inside and is provided with outfall sewer; Water seal is fallen and is provided with water-in between cover and outfall sewer, and described water-in is provided with float ball switch device; One end of described outfall sewer stretches out movable water tank outside; Be provided with flexible pipe in equalizing tank simultaneously; One end of flexible pipe can movable dock with the end that the outfall sewer of the constant equipment of the discharge of sewage stretches out movable water tank; The other end of flexible pipe is the metastable sewage outlet of flow, with the sewage admission port of acidizing hydrolyzation tank, is connected.
The equipment that decomposes step by step anaerobic treatment and aerobic treatment employing of described constant current waste water comprises an acidizing hydrolyzation tank, a strictly anaerobic pond and an Aerobic Pond, and the filler of acidizing hydrolyzation tank inside is put into cellulose-decomposing bacterium, butanols clostridium (Closlridium acetobutylicum), thiobacterium (Thiobacterium) and fertile woods syntrophism bacillus (Syntrophobacter wolinii); The filler in strictly anaerobic pond is put into methagen (Methanobacteriaceae), methanosarcina (Methanococcus Kluyer and vam Niel), sarcina methanica (Methanosarcina Kluyver and van Niel) and is ruminated methagen (Methanobacterium) waste water while processing at acidizing hydrolyzation tank, and acidizing hydrolyzation tank passes into appropriate air; The strictly anaerobic pond is strictly airtight, and the strict control of pond temperature temperature is 30～35 ℃, and pH is 5.8～7.0.
Described cellulose-decomposing bacterium, butanols clostridium, thiobacterium and Wo Lin syntrophism bacillus, methagen, methanosarcina, sarcina methanica and to ruminate methagen be all the bacterial classification of putting down in writing according on the microorganism handbook, can buy from institute of microbiology, also can buy from the market, with the sewage domestication 3-5 days needed with appropriate equalizing tank, make it the environment that flora adapts to equalizing tank water before using.
The pulse turbulence membrane biological respinse of described waste water is processed, and the equipment of employing is pulse turbulence membrane bio-reactor, it is characterized in that, comprising: hollow-fiber membrane bioreactor, a gas blower, a suction pump, a sludge pump and a surge generator; Described gas blower is connected with the aeration tube that the hollow-fiber membrane bioreactor bottom arranges with magnetic valve and pipeline; ; One end of described suction pump is connected with the hollow-fiber membrane bioreactor water outlet; Described sludge pump is connected with the sludge outlet that the hollow-fiber membrane bioreactor bottom is provided with; Described surge generator structure comprises water tank, bell jar, vapor pipe, siphon destructing tube, siphon manufacture vapor pipe and pulse water shoot; The water tank the inside is provided with bell jar, and one of the pulse water shoot passes in bell jar, and other end passes water tank; Siphon destructing tube one end vapor pipe is connected; The vapor pipe the other end is connected with siphon manufacture pipe; The inside that the vapor pipe the other end stretches into the pulse vapor pipe is manufactured in siphon; Pipe connecting between siphon manufacture vapor pipe and vapor pipe is drawn a pipeline and is stretched into bell jar inside.
The two-step bleaching of described waste water is processed, the discoloring agent that the first step decolouring processing adopts is comprised of the raw material of following weight percentage: Losantin 30～60%, clorox 30～40%, 10% hypochloric acid water solution 0～40%, first be made into discoloring agent 5% the aqueous solution before using with clear water;
The discoloring agent that second step decolouring processing adopts is comprised of the raw material of following weight percentage: acetic acid 10～20%, and 30% hydrogen peroxide solution 75～89%, ozone 1～5%, first be made into discoloring agent B 5% the aqueous solution before using with clear water.
Described clarifying treatment is that the waste water after decolouring is processed is put into settling pond, and every cubic metre of waste water adds 0.5～1Kg to add polymerize aluminum chloride or bodied ferric sulfate, standing 1～2h.
The accompanying drawing explanation
Fig. 1 is the process flow sheet of method of wastewater treatment of the present invention;
Fig. 2 is the structure iron of the constant equipment of the discharge of sewage;
Fig. 3 is the structure iron of pulse turbulence membrane bio-reactor;
Fig. 4 is the structure iron of surge generator;
In figure, the device name of numbering representative is:
1 movable tank; 2 sliding bars; Positioning lock on 3; 4 times positioning locks; 5 water seals fall to cover; 6 float ball switch devices; 7 water-ins; 8 outfall sewers; 9 flexible pipes; 10 equalizing tanks; 11 surge generators; 12 hollow fiber membrane reactor film framves; 13 film silks; 14 water distributors; 15 aeration tubes; 16 suction pumps; 17 water intakes; 18 sludge outlets; 19 gas blowers; 20 magnetic valves; 21 sludge pumps; 22 siphon destructing tubes; 23 water tanks; 24 bell jars; 25 vapor pipes; Vapor pipe is manufactured in 26 siphons; 27 pulse water shoots; 28 siphon inlets; 29 siphon water outlets.
Embodiment
At first tame cellulose-decomposing bacterium, butanols clostridium, thiobacterium and Wo Lin syntrophism bacillus, methagen, methanosarcina, sarcina methanica and ruminate methagen with the sewage of appropriate equalizing tank, make it the environment that flora adapts to equalizing tank water, then at the filler of acidizing hydrolyzation tank inside, put into cellulose-decomposing bacterium, butanols clostridium, thiobacterium and Wo Lin syntrophism bacillus; The filler in strictly anaerobic pond is put into methagen, methanosarcina, sarcina methanica and is ruminated methagen, and when waste water is processed at acidizing hydrolyzation tank, acidizing hydrolyzation tank passes into appropriate air; The strictly anaerobic pond is strictly airtight, and the strict control of pond temperature temperature is 30～35 ℃, and pH is 5.8～7.0.
Sewage treatment technology process figure as shown in Figure 1; Pass into equalizing tank from townie sewage; After the constant equipment of the discharge of sewage, the sewage of instability of flow becomes the metastable fluid of flow; Then enter acidizing hydrolyzation tank, carry out undemanding anaerobically fermenting processing, namely in fermenting process, pass into trace oxygen, promote organic acidification hydrolization in waste water; Sewage after acidified hydrolysis treatment enters the strictly anaerobic pond, carries out anaerobically fermenting, and small organic molecule is decomposed, and produces biogas, removes COD and BOD; The sewage of discharging from strict anaerobic pond enters pulse turbulence membrane bio-reactor, by membrane biological reaction, processes, and the degree of depth is removed ammonia nitrogen and the phosphorus in sewage; The sewage of discharging from membrane bioreactor has certain colourity, the processing of need to decolouring; With discoloring agent A, sewage is decoloured, make the colourity of sewage 50～80; With the discoloring agent B processing of decolouring, make colourity reach sewage first grade discharging A standard again, namely colourity is less than 50; The discharge of wastewater of processing through discoloring agent B is as in settling pond, and every cubic metre of waste water adds flocculant poly aluminum chloride or the bodied ferric sulfate of 0.5～1Kg, standing 1～2h; Discharge clear water, clear water water quality reaches country-level A emission standard.Main technologic parameters and the wastewater treatment efficiency of method of wastewater treatment of the present invention are as shown in the table:
Table 1: COD of sewage removal effect
Table 2: sewage decoloring treatment process discoloring agent composition
Table 3: Colority of Sewage Water removal effect
Table 4: sewage ammonia nitrogen removal effect
Table 5: sewage total phosphorus removal effect
From above list data, find out, method of wastewater treatment of the present invention has COD, ammonia nitrogen and total tp removal rate is high, good decolorizing effect, and effluent quality meets and exceeds country-level A emission standard.
Claims (6)
1. a method of wastewater treatment, is characterized in that, comprises following sequential steps:
(1) the constant adjusting of wastewater flow;
(2) the decomposition anaerobic treatment step by step of constant current waste water and aerobic treatment;
(3) pulse of waste water turbulent flow biomembrane reaction is processed;
(4) two-step bleaching of waste water is processed;
(5) clarifying treatment.
2. method of wastewater treatment as claimed in claim 1, it is characterized in that, the constant adjusting of described wastewater flow, that at first waste water enter equalizing tank, become the metastable fluid of flow after the constant equipment of the discharge of sewage of placing in equalizing tank, the constant device structure of the described discharge of sewage comprises sliding bar and movable water tank; Described sliding bar is provided with positioning lock and lower positioning lock; Described movable water tank is enclosed within on the described sliding bar between described upper positioning lock and lower positioning lock; Described movable water tank the inside is provided with fixing water seal and falls to cover; Described water seal is fallen to cover the inside and is provided with outfall sewer; Water seal is fallen and is provided with water-in between cover and outfall sewer, and described water-in is provided with float ball switch device; One end of described outfall sewer stretches out movable water tank outside; Be provided with flexible pipe in equalizing tank simultaneously; One end of flexible pipe can movable dock with the end that the outfall sewer of the constant equipment of the discharge of sewage stretches out movable water tank; The other end of flexible pipe is the metastable sewage outlet of flow.
3. method of wastewater treatment as claimed in claim 1, it is characterized in that, the equipment that decomposes step by step anaerobic treatment and aerobic treatment employing of described constant current waste water comprises an acidizing hydrolyzation tank, a strictly anaerobic pond and an Aerobic Pond, and the filler of acidizing hydrolyzation tank inside is put into cellulose-decomposing bacterium, butanols clostridium, thiobacterium and Wo Lin syntrophism bacillus; The filler in strictly anaerobic pond is put into methagen, methanosarcina, sarcina methanica and is ruminated methagen, and when waste water is processed at acidizing hydrolyzation tank, acidizing hydrolyzation tank passes into appropriate air; The strictly anaerobic pond is strictly airtight, and temperature control temperature in pond is 30～35 ℃, and pH is 5.8～7.0.
4. method of wastewater treatment as claimed in claim 1, it is characterized in that, the pulse turbulence membrane biological respinse of described waste water is processed, the equipment adopted is pulse turbulence membrane bio-reactor, it is characterized in that, comprising: hollow-fiber membrane bioreactor, a gas blower, a suction pump, a sludge pump and a surge generator; Described gas blower is connected with the aeration tube that the hollow-fiber membrane bioreactor bottom arranges with magnetic valve and pipeline; One end of described suction pump is connected with the hollow-fiber membrane bioreactor water outlet; Described sludge pump is connected with the sludge outlet that the hollow-fiber membrane bioreactor bottom is provided with; Described surge generator structure comprises water tank, bell jar, vapor pipe, siphon destructing tube, siphon manufacture vapor pipe and pulse water shoot; The water tank the inside is provided with bell jar, and one of the pulse water shoot passes in bell jar, and other end passes water tank; Siphon destructing tube one end vapor pipe is connected; The vapor pipe the other end is connected with siphon manufacture pipe; The inside that the vapor pipe the other end stretches into the pulse vapor pipe is manufactured in siphon; Pipe connecting between siphon manufacture vapor pipe and vapor pipe is drawn a pipeline and is stretched into bell jar inside.
5. method of wastewater treatment as claimed in claim 1, it is characterized in that, the two-step bleaching of described waste water is processed, the discoloring agent that the first step decolouring processing adopts is comprised of the raw material of following weight percentage: Losantin 30～60%, clorox 30～40%, 10% hypochloric acid water solution 0～40%, first be made into discoloring agent 5% the aqueous solution before using with clear water;
The discoloring agent that second step decolouring processing adopts is comprised of the raw material of following weight percentage: acetic acid 10～20%, and 30% hydrogen peroxide solution 75～89%, ozone 1～5%, first be made into discoloring agent B 5% the aqueous solution before using with clear water.
6. method of wastewater treatment as claimed in claim 1, is characterized in that, described clarifying treatment is that the waste water after decolouring is processed is put into settling pond, and every cubic metre of waste water adds 0.5～1Kg to add polymerize aluminum chloride or bodied ferric sulfate, standing 1～2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310448401.9A CN103466897B (en) | 2013-09-27 | 2013-09-27 | Waste water processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310448401.9A CN103466897B (en) | 2013-09-27 | 2013-09-27 | Waste water processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103466897A true CN103466897A (en) | 2013-12-25 |
| CN103466897B CN103466897B (en) | 2015-02-11 |
Family
ID=49791985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310448401.9A Active CN103466897B (en) | 2013-09-27 | 2013-09-27 | Waste water processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103466897B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174633A (en) * | 2015-09-28 | 2015-12-23 | 罗依依 | Comprehensive standard increase method for increasing standard of discharged water of municipal wastewater treatment plant from first grade B to first grade A |
| CN105906160A (en) * | 2016-06-16 | 2016-08-31 | 广西贵港市蓝月亮水处理环保科技有限公司 | Unpowered sewage treatment device |
| CN108929003A (en) * | 2018-09-12 | 2018-12-04 | 浙江建设职业技术学院 | A kind of municipal wastewater processing system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587119A (en) * | 2003-08-26 | 2005-03-02 | 山东泉林纸业有限责任公司 | Decoloring method for paper-making middle section water |
| CN2712897Y (en) * | 2004-03-24 | 2005-07-27 | 赵剑强 | Liquid constant discharging device |
| CN1807280A (en) * | 2005-12-19 | 2006-07-26 | 东南大学 | Impulse active biofiltration device |
| CN201220925Y (en) * | 2007-04-06 | 2009-04-15 | 北京碧水源科技股份有限公司 | Pulse aeration type membrane bioreactor apparatus |
| CN101863598A (en) * | 2010-06-28 | 2010-10-20 | 深圳市龙澄高科技环保有限公司 | Method for treating city garbage leachate |
-
2013
- 2013-09-27 CN CN201310448401.9A patent/CN103466897B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587119A (en) * | 2003-08-26 | 2005-03-02 | 山东泉林纸业有限责任公司 | Decoloring method for paper-making middle section water |
| CN2712897Y (en) * | 2004-03-24 | 2005-07-27 | 赵剑强 | Liquid constant discharging device |
| CN1807280A (en) * | 2005-12-19 | 2006-07-26 | 东南大学 | Impulse active biofiltration device |
| CN201220925Y (en) * | 2007-04-06 | 2009-04-15 | 北京碧水源科技股份有限公司 | Pulse aeration type membrane bioreactor apparatus |
| CN101863598A (en) * | 2010-06-28 | 2010-10-20 | 深圳市龙澄高科技环保有限公司 | Method for treating city garbage leachate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174633A (en) * | 2015-09-28 | 2015-12-23 | 罗依依 | Comprehensive standard increase method for increasing standard of discharged water of municipal wastewater treatment plant from first grade B to first grade A |
| CN105906160A (en) * | 2016-06-16 | 2016-08-31 | 广西贵港市蓝月亮水处理环保科技有限公司 | Unpowered sewage treatment device |
| CN108929003A (en) * | 2018-09-12 | 2018-12-04 | 浙江建设职业技术学院 | A kind of municipal wastewater processing system and method |
| CN108929003B (en) * | 2018-09-12 | 2021-12-03 | 浙江建设职业技术学院 | Urban wastewater treatment system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103466897B (en) | 2015-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204454829U (en) | A kind of integrated underground sewage treatment equipment efficiently | |
| CN108383320B (en) | Integrated treatment method for livestock and poultry breeding wastewater | |
| CN204079721U (en) | A kind of sewage disposal device adopting pure oxygen aeration and remaining oxygen reuse | |
| CN109502745B (en) | Method for rapidly domesticating microorganism capable of degrading 2,4, 6-trichlorophenol | |
| CN103466897B (en) | Waste water processing method | |
| CN219194742U (en) | Low-energy-consumption sewage treatment system | |
| CN217148714U (en) | Denitrification processing system | |
| CN104909517A (en) | Industrial production wastewater advanced treatment device | |
| CN102260022B (en) | Biological enhanced brewery wastewater biotreatment device and method | |
| CN115028267A (en) | Waste water recycling device | |
| CN205528304U (en) | Polyvinyl butyral waste water biochemical treatment system | |
| CN205313331U (en) | Treatment of domestic sewage retrieval and utilization equipment | |
| CN204752478U (en) | Urban domestic sewage treatment device | |
| CN203402963U (en) | High-concentration ammonia-nitrogen wastewater treatment device | |
| CN113526668A (en) | Device and method for simultaneously realizing urban sewage treatment and excess sludge reduction | |
| CN206751619U (en) | A kind of sanitary sewage and production wastewater comprehensive treatment system | |
| CN106587484A (en) | Reaction system for removal of nitrogen and phosphorus in domestic sewage by use of microalgae | |
| CN204607806U (en) | Ecological purifying device for waste water | |
| CN204727726U (en) | A kind of pesticide wastewater biological treatment combination unit | |
| CN215627424U (en) | Container sewage treatment system | |
| CN215799056U (en) | Lac effluent disposal system | |
| CN108675567A (en) | Garbage percolation liquid treating system | |
| CN213037613U (en) | Domestic sewage treatment system | |
| Lomte et al. | Influence of advanced settling zone on COD removal efficiency of UASB reactor treating dairy wastewater | |
| CN220413117U (en) | Advanced sewage treatment system based on dynamic aeration of multifunctional ozone micro-nano bubbles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |