CN102107947A - Aeration biological filter chamber facility - Google Patents
Aeration biological filter chamber facility Download PDFInfo
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- CN102107947A CN102107947A CN 201110021745 CN201110021745A CN102107947A CN 102107947 A CN102107947 A CN 102107947A CN 201110021745 CN201110021745 CN 201110021745 CN 201110021745 A CN201110021745 A CN 201110021745A CN 102107947 A CN102107947 A CN 102107947A
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Abstract
The invention relates to an aeration biological filter chamber facility which is an integrated sewage treatment facility in a multistage series combination technique. The aeration biological filter chamber facility comprises a chamber body, a filler layer, a supporting layer, a sludge hopper, a water inlet/outlet system, a back-purge system, various control valves and metering devices. From inside to outside, the whole facility is sequentially divided into an anaerobic zone filter chamber, a first aerobic zone filter chamber and a second aerobic zone filter chamber in the form of concentric circles. When the facility operates, sewage enters from the bottom of the inner layer anaerobic zone, sequentially flows through the filter chambers in an upflow-downflow-upflow mode, and finally converges in a water collection tank on the chamber top to be discharged. While the sewage enters, air is introduced into a microporous aeration hose on the lower part of the aerobic chamber so as to provide required oxygen for decomposing organic substances. In the back-purge stage, back-purge gas and water of the aerobic zone filter chamber share one set of perforated pipes, and a gas-water-gas three-step purge mode is adopted; and at the anaerobic zone filter chamber, a water inlet perforated pipe is utilized to carry out back-purge, and only water is used for the back-purge in the whole process. After the upflow water purge finishes, the downflow water starts purging to remove aged biomembranes, thereby ensuring the stable operation of the filter chamber.
Description
Technical field
The present invention relates to sewage disposal device, specifically is a kind of second-stage treatment of integrated form sanitary sewage and the small sewage treatment equipment of ash water recycling.Be specially adapted to the water yield less relatively, come water-dispersion, to collect difficulty big and need the place of on-the-spot disposal qualified discharge, as samll cities and towns, the sub-district of living on one's own life, the remote place where their troops are stationed etc., wherein particularly suitable for the processing of small town sewage.
Background technology
BAF is called for short BAF, be late 1980s at a kind of new bio embrane method sewage treatment process that the America and Europe grows up, obtain large development the beginning of the nineties, this technology has the effect of removing SS, COD, BOD, nitrated, denitrogenation, dephosphorization.BAF collection bio-oxidation and hold back the suspended solids one has been saved post precipitation pond (second pond), has that volumetric loading is big, hydraulic load is big, hydraulic detention time is short, and required initial cost is few, and effluent quality is good, operation energy consumption is low, the characteristics that working cost is few.Especially be fit to land used anxiety, the sewage disposal of the backward samll cities and towns of the level of economic development, but BAF structure more complicated, than a hour employing Reinforced Concrete Materials construction trouble, unit price is higher in scale.The BAF filter tank device category of existing market is less, cost an arm and a leg and fail to be optimized design at samll cities and towns' sewage quality, water yield characteristics, low and the oxygen replenishing equipment obstruction of oxygen-transfer efficiency appears in the use easily, backwashing manner is unreasonable to be caused occurring biomembrane activity and reduces, remove problems such as organism and denitrogenation dephosphorizing effect instability, the problems referred to above cause BAF to fail at samll cities and towns' large-scale promotion application.Little at samll cities and towns' sewage quality, water yield exploitation floor space, the integrated equipment of the BAF of compact construction, reaching effective oxygenation simultaneously and prevent that oxygen replenishing equipment from stopping up, guarantee that flushing cycle and intensity rationally reach the water outlet effect stability, is the subject matter that this equipment will solve.
Summary of the invention
The objective of the invention is to propose a kind of novel BAF equipment at the above-mentioned weak point of BAF.
A kind of BAF equipment, described equipment be with the biological aerated filter process centralized arrangement in a round shape pond body; It is characterized in that,
Described round shape pond body is inner to adopt two concentric drums from inside to outside round shape pond body to be divided into three filter tanks successively: filter tank, oxygen-starved area, the first aerobic zone filter tank and the second aerobic zone filter tank, the described enzymatic filtrate of loading corresponding size grading in filter tank, every district.
The top in filter tank, described oxygen-starved area, the first aerobic zone filter tank and the second aerobic zone filter tank all opens wide, and top, filter tank, oxygen-starved area is communicated with the first aerobic zone filter tank; The bottom in filter tank, oxygen-starved area cuts off with the first aerobic zone filter tank and the second aerobic zone filter tank and is not communicated with, and water inlet pipe is inserted by the bottom in filter tank, oxygen-starved area; The bottom in filter tank, described oxygen-starved area has also picked out blow-down pipe, encloses in the top, filter tank, oxygen-starved area to be equipped with a circle oxygen-starved area back flushing drainage tray, and has picked out oxygen-starved area back flushing water shoot.
The bottom in the described first aerobic zone filter tank and the second aerobic zone filter tank is interconnected, and the outer periphery on top, the second aerobic zone filter tank is equipped with water leg, and has picked out rising pipe by water leg; The bottom in the described first aerobic zone filter tank and the second aerobic zone filter tank is inserted air feed tube road, back flushing water inlet inlet pipe jointly, has also picked out blow-down pipe in addition.
On described each pipeline, be provided with control valve.
The present invention is integrated into three grades of BAF combination procesies in the cylindrical cell body, be divided into three districts in concentrically ringed mode from inside to outside, in each filter tank, district, load the filtrate of certain size grading, during operation, current are upper and lower to alternately flowing, fully contact with the microbial film of filter material surface, with nutritive elements such as the suspended substance in the sewage, organism and nitrogen phosphorus hold back, absorption, oxygenolysis or conversion processing, obtain the water outlet of allow compliance with emission standards.The back flushing stage, utilize treat effluent to wash, adopt to go up earlier and afterwards descend reciprocal mode, effective, save energy consumption.Entire equipment is applied widely, treatment effect good, convenient operation and management, and surplus sludge volume is few, takes up an area of for a short time, invests for a short time, and running expense is low, and is little to the influence of surrounding environment.
Description of drawings
Fig. 1---BAF equipment vertical planning drawing
Fig. 2---BAF schematic plan view
Fig. 3---BAF sectional view
1---the second aerobic zone filter tank, 2---the first aerobic zone filter tank, 3---the filter tank, oxygen-starved area, 4---the oxygen-starved area bucket, 5---the aerobic zone bucket, 6---anaerobism section back flushing drainage tray, 7---water leg, 8---water inlet pipe, 9---the air feed tube road, 10---the perforation water distributing pipe, 11---back flushing water inlet inlet pipe, 12---oxygen-starved area back flushing water shoot, 13---the first aerobic zone filter back washing water shoot, 14---rising pipe, 15---the oxygen-starved area blow-down pipe, 16---the aerobic zone blow-down pipe, 17---micro-pore aeration flexible pipe, 18---supporting layer, 19---the dephosphorization filler, 20---the enzymatic living beings filler, 21---the back flushing induction pipe.
Embodiment
With reference to accompanying drawing 1 and Fig. 2, this equipment adopts round shape stainless steel pond body, circular pond isotropy, stress condition and hydraulics are all very good, and take up an area of for a short time, under the identical condition of volume, save material most, and the pond body has only two weld seams, and the more conventional square pond of the probability that equipment goes wrong is low.
Device interior is divided into three filter tanks from inside to outside with two concentric drums, is respectively filter tank, oxygen-starved area 3, the first aerobic zone filter tank 2 and the second aerobic zone filter tank 1.Load the enzymatic living beings filler 20 of corresponding size grading in the filter tank, every district.Wherein the suspended solids held back in the waste water and the effect of acidication are mainly played in filter tank, oxygen-starved area 3, the oxygenolysis dissolved organic matter is mainly played in the first aerobic zone filter tank 2, stablize the effect of carbon source, the nitrated effect of ammonia nitrogen is mainly played in the second aerobic zone filter tank 1, can realize synchronous nitration and denitrification by regulating operating mode simultaneously.Main effect specific aim according to every section filter tank is cultivated dominant bacteria, can improve device processes usefulness.In addition, also can load certain volume dephosphorization filler 19, reach good denitrogenation dephosphorizing effect on 1 top, the second aerobic zone filter tank.
The top in filter tank, oxygen-starved area 3, the first aerobic zone filter tank 2 and the second aerobic zone filter tank 1 all opens wide, and 3 tops, filter tank, oxygen-starved area are communicated with the first aerobic zone filter tank 2, and the water in filter tank, oxygen-starved area 3 turns over water and enters the first aerobic zone filter tank 2 by overflow.The bottom in filter tank, oxygen-starved area 3 cuts off with the first aerobic zone filter tank 2 and the second aerobic zone filter tank 1 and is not communicated with, and water inlet pipe 8 is inserted by the bottom in filter tank, oxygen-starved area 3, and by perforation water distributing pipe 10 water distributions, sewage flows from lower to upper.The bottom in filter tank, described oxygen-starved area 3 has also picked out blow-down pipe 15, encloses in 3 tops, filter tank, oxygen-starved area to be equipped with a circle oxygen-starved area back flushing drainage tray 6, and has picked out oxygen-starved area back flushing water shoot 12, discharges the sewage of back flushing.In addition, truncated cone-shaped bucket 4 is formed on the bottom in filter tank, oxygen-starved area 3, is beneficial to collect the aging microbial film that comes off, and is discharged by blow-down pipe 15.
The bottom in the first aerobic zone filter tank 2 and the second aerobic zone filter tank 1 is interconnected, and sewage is flowed from the top down by the first aerobic zone filter tank 2 during equipment work, flows into the second aerobic zone filter tank 1 from the bottom, and then to the upper reaches.The outer periphery on 1 top, the second aerobic zone filter tank is equipped with water leg 7, and has picked out rising pipe 14 by effluent trough 7, and current flow into water leg 7 earlier by 1 top, the second aerobic zone filter tank, is discharged by rising pipe 14 then.The bottom in the first aerobic zone filter tank 2 and the second aerobic zone filter tank 1 has access to air feed tube road 9, back flushing water inlet inlet pipe 11 jointly, has also picked out blow-down pipe 16 in addition.Be provided with control valve on two external each pipeline.In addition, truncated cone-shaped bucket 5 is all formed on the bottom in the bottom in filter tank, oxygen-starved area 3 and the first aerobic zone filter tank 2 and the second aerobic zone filter tank 1, is beneficial to collect the aging microbial film that comes off, and is discharged by blow-down pipe 16.
The cobble of all putting certain particle diameter below the filler in each filter tank supports the various pipelines of each body bottom, pond as supporting layer 18.
After water inlet pipe 8 is linked in 3 bottoms, filter tank, oxygen-starved area, connection be the perforation water distributing pipe 10, realize uniform water distribution with this.Back flushing water inlet inlet pipe 11 inserts the first aerobic zone filter tank 2 and 1 interior back, the second aerobic zone filter tank form with the ring-type perforated pipe in supporting layer and distributes the shared cover system of back flushing water inlet air inlet.Air feed tube road 9 is connected micropore aeration pipe 17 respectively after inserting in the first aerobic zone filter tank 2 and the second aerobic zone filter tank 1.
The drainage tray on filter tank, oxygen-starved area 3 and top, the second aerobic zone filter tank is respectively applied for the backwashing wastewater of discharging the oxygen-starved area and second aerobic zone, the backwashing wastewater of first aerobic zone delivers to water leg 7 by back flushing water shoot 13 and the second aerobic zone backwashing wastewater discharges in the lump, is transported to the front end of sewage disposal.Treat effluent receiving tank when the drainage tray of aerobic zone also moves as equipment.Oxygen-starved area and aerobic zone top are clear water zone, the water requirement of filtrate and expansion, reciprocating type backwash and long backwashing period when considering back flushing, and the clear water zone reserved area is relatively large.
Be easy to stop up for fear of the biological filter, shorten the problem of pressure cycle, the part suspended solid can be held back in the oxygen-starved area of equipment nexine, reduces the SS that enters aerobic section, the cycle of operation of extension reactor; Simultaneously, utilize the anaerobion of oxygen-starved area filter material surface, the macromolecule organic of difficult degradation can be hydrolyzed into the small organic molecule of easy degraded, improve the biodegradability of sewage.
Organic oxidative decomposition mainly takes place in the aerobic zone fore portion of this equipment, removes most COD, BOD; The nitration reaction of ammonia nitrogen mainly takes place in the rear section, reduces the ammonia-nitrogen content of water outlet.But because the filter tank spatially belongs to aerobic environment and anaerobic environment exists simultaneously, and can also regulate aeration rate and cultivate aerobic denitrifying bacteria and nitrification bacteria, realize synchronous nitration and denitrification.At the filler end, utilize the dephosphorization filler, realize the synchronous qualified discharge of nitrogen, phosphorus.
In the back flushing stage, adopt the up-and-down reciprocating backwashing manner that aerobic zone and oxygen-starved area are separately washed.Anoxic pond is only carried out back flushing with clear water, and Aerobic Pond adopts the mode of air-water-gas three steps flushing.At first, gas, water all are to wash from the bottom up, and oxygen-starved area and aerobic zone water outlet are collected by drainage tray separately, discharge by corresponding pipeline.When the upward flow flushing finishes, close the valve of back flushing water shoot, retaining is to the clear water zone top water-level, open the quick-opening valve of bucket bottom then, the both following mode to stream of clear water washes filtrate and supporting layer drains until the filter pool inner water, and the microbial film wash-out that comes off that will wear out is like this gone out, and guarantees biomembranous activity and processing efficiency, realize long backwashing period, keep the steady running in filter tank.
This BAF equipment design is reasonable, and is simple and compact for structure, and its treating processes is as follows:
Pretreated sewage of process or former water are entered into the bottom in filter tank, equipment internal layer oxygen-starved area 3 by water inlet pipe 8, by the eyelet uniform water distribution on the perforation water distributing pipe 10, pass through the filtrate in filter tank, oxygen-starved area 3 in the mode of upward flow, after arriving anoxic pond top clear water zone, overflow enters the first aerobic zone filter tank 2, following mode to stream is passed through the filtrate in the first aerobic zone filter tank, enter the second aerobic zone filter tank 1 in the connection district of aerobic zone bottom then, pass through the filtrate in the second aerobic zone filter tank 1 again in the mode of upward flow, after arriving the second aerobic zone filter tank, 1 top clear water zone, overflow enters outermost water leg 7, at last by water shoot 14 unified qualified discharges.In the time of water inlet, air compressor machine provides oxygen along pond body circumferential direction to Aerobic Pond by the micro-pore aeration flexible pipe 17 below the supporting layer of aerobic zone by air feed tube road 9 bubbling airs.
When the effluent quality variation, be lower than emission standard, when perhaps pressure head is not enough, need carry out back flushing to the filter tank.Back flushing is divided into the upward flow flushing and washes two stages to stream down, in the back flushing fs, at first close the valve on the air feed tube road 9, stop air inlet, valve on the conversion water inlet pipe 8 is opened the valve on the back flushing water inlet intake ducting 11 to the clear water inflow direction.According to rinsing requirement, feed certain intensity clear water by water inlet pipe 8 to anoxic pond, keep washing to stream mode more than for some time; At aerobic section, then feed the air-water-gas of certain backwash rate successively by back flushing water inlet intake ducting 11, with the mode wash-out filter material surface aged microbial film of upward flow, backwashing time is generally 5 ~ 10min.The backwashing wastewater of anoxic pond and Aerobic Pond utilizes oxygen-starved area back flushing drainage tray 6, water leg 7 separately to collect separately respectively, gets back to the front end of sewage disposal then by discharge tube 12,14 separately.After filtrate is rinsed well substantially, enter subordinate phase-down to the stream rinse stage, when keeping water inlet, close the water discharge valve of back-purge system, retaining is to the top water-level in filter tank, open the quick-opening valve on the blow-down pipe 15,16 of bucket bottom then, the following mode to stream of clear water is carried out counterflush to filtrate and supporting layer, and the water to the filter tank drains, and closes quick-opening valve, again open water intaking valve and intake valve water inlet air inlet, enter the next cycle of operation.
Claims (5)
1. BAF equipment, it has round shape pond body, it is characterized in that,
Described round shape pond body is inner to adopt two concentric drums from inside to outside round shape pond body to be divided into three filter tanks successively: filter tank, oxygen-starved area, the first aerobic zone filter tank and the second aerobic zone filter tank, the described enzymatic filtrate of loading corresponding size grading in filter tank, every district;
The top in filter tank, described oxygen-starved area, the first aerobic zone filter tank and the second aerobic zone filter tank all opens wide, and top, filter tank, oxygen-starved area is communicated with the first aerobic zone filter tank; The bottom in filter tank, oxygen-starved area cuts off with the first aerobic zone filter tank and the second aerobic zone filter tank and is not communicated with, and water inlet pipe is inserted by the bottom in filter tank, oxygen-starved area; The bottom in filter tank, described oxygen-starved area has also picked out blow-down pipe, encloses in the top, filter tank, oxygen-starved area to be equipped with a circle oxygen-starved area back flushing drainage tray, and has picked out oxygen-starved area back flushing water shoot;
The bottom in the described first aerobic zone filter tank and the second aerobic zone filter tank is interconnected, and the outer periphery on top, the second aerobic zone filter tank is equipped with water leg, and has picked out rising pipe by water leg; The bottom in the described first aerobic zone filter tank and the second aerobic zone filter tank is inserted air feed tube road, back flushing water inlet inlet pipe jointly, has also picked out blow-down pipe in addition;
On described each pipeline, be provided with control valve.
2. BAF equipment according to claim 1 is characterized in that, places cobble under the filler in filter tank, described oxygen-starved area, the first aerobic zone filter tank and pond, the second aerobic zone filter tank as supporting layer, supports the various pipelines of each body bottom, pond.
3. BAF equipment according to claim 1 is characterized in that, described water inlet pipe is linked in the bottom, filter tank, oxygen-starved area, connects the perforation water distributing pipe, realizes uniform water distribution.
4. BAF equipment according to claim 1, it is characterized in that, described back flushing water inlet inlet pipe inserts the first aerobic zone filter tank and the second aerobic zone filter tank interior form with the ring-type perforated pipe of inherent supporting layer and distributes the shared cover system of back flushing water inlet air inlet.
5. BAF equipment according to claim 1 is characterized in that, described air feed tube road is connected micropore aeration pipe after inserting in the first aerobic zone filter tank and the second aerobic zone filter tank.
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| CN2011100217452A CN102107947B (en) | 2011-01-19 | 2011-01-19 | Aeration biological filter chamber facility |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351372A (en) * | 2011-07-04 | 2012-02-15 | 京科高新（北京）环境科学研究所 | Purifying tank |
| CN103073109A (en) * | 2013-01-09 | 2013-05-01 | 常州大学 | Composite biotrickling filter for nitrogen and phosphorus removal |
| CN103224287A (en) * | 2013-05-16 | 2013-07-31 | 南京大学 | Device and method for treating organic wastewater by using hydraulic jet circulating anaerobic biofilter |
| CN103332779A (en) * | 2013-06-04 | 2013-10-02 | 上海延庆水处理设备制造有限公司 | Composite aeration biological filter and process thereof |
| CN103880185A (en) * | 2014-04-19 | 2014-06-25 | 无锡博美环境工程有限公司 | Integrated A/O/MBBR (Moving Bed Biofilm Reactor) reactor |
| CN104071946A (en) * | 2014-06-16 | 2014-10-01 | 天津开发区威克达科技发展有限公司 | Domestic sewage treatment method of marine facility |
| CN104445821A (en) * | 2014-12-03 | 2015-03-25 | 上海理工大学 | Process combination system for integrated treatment of micro-polluted raw water and method of process combination system |
| CN104961232A (en) * | 2015-06-16 | 2015-10-07 | 徐州工程学院 | Vertical integral sewage treatment plant |
| CN105056591A (en) * | 2015-07-20 | 2015-11-18 | 清华大学深圳研究生院 | Suspended rapid filter |
| CN105271520A (en) * | 2015-09-16 | 2016-01-27 | 徐雪祥 | Annular biological aerated filter and application thereof |
| CN105347465A (en) * | 2015-12-12 | 2016-02-24 | 刘微 | Modified intensive aeration and vein type biofilter |
| CN107055871A (en) * | 2017-05-03 | 2017-08-18 | 北京师范大学 | A kind of new coagulating sedimentation retention filtering air-water backwashing integrated high-efficiency filter tank |
| CN110845009A (en) * | 2019-11-09 | 2020-02-28 | 上海电站辅机厂有限公司 | Anaerobic and aerobic biochemical integrated device |
| CN114105406A (en) * | 2021-10-29 | 2022-03-01 | 江苏河海给排水成套设备有限公司 | Household wet garbage and domestic sewage treatment system and treatment method |
| CN115340248A (en) * | 2022-08-20 | 2022-11-15 | 滁州职业技术学院 | Comprehensive sewage purification treatment equipment for environmental engineering |
| CN115385537A (en) * | 2022-08-16 | 2022-11-25 | 滁州职业技术学院 | Activation treatment equipment based on environmental engineering sludge microorganisms |
| CN116925889A (en) * | 2023-09-18 | 2023-10-24 | 中国市政工程西南设计研究总院有限公司 | Nitrifying bacteria enrichment culture device and sewage treatment device and method |
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| CN1569689A (en) * | 2004-04-30 | 2005-01-26 | 重庆大学 | Lateral flow aeration biological filtering-tank reactor |
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| CN1569689A (en) * | 2004-04-30 | 2005-01-26 | 重庆大学 | Lateral flow aeration biological filtering-tank reactor |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351372A (en) * | 2011-07-04 | 2012-02-15 | 京科高新（北京）环境科学研究所 | Purifying tank |
| CN103073109A (en) * | 2013-01-09 | 2013-05-01 | 常州大学 | Composite biotrickling filter for nitrogen and phosphorus removal |
| CN103224287A (en) * | 2013-05-16 | 2013-07-31 | 南京大学 | Device and method for treating organic wastewater by using hydraulic jet circulating anaerobic biofilter |
| CN103224287B (en) * | 2013-05-16 | 2014-09-17 | 南京大学 | Device and method for treating organic wastewater by using hydraulic jet circulating anaerobic biofilter |
| CN103332779B (en) * | 2013-06-04 | 2015-01-21 | 上海延庆水处理设备制造有限公司 | Composite aeration biological filter and process thereof |
| CN103332779A (en) * | 2013-06-04 | 2013-10-02 | 上海延庆水处理设备制造有限公司 | Composite aeration biological filter and process thereof |
| CN103880185A (en) * | 2014-04-19 | 2014-06-25 | 无锡博美环境工程有限公司 | Integrated A/O/MBBR (Moving Bed Biofilm Reactor) reactor |
| CN104071946A (en) * | 2014-06-16 | 2014-10-01 | 天津开发区威克达科技发展有限公司 | Domestic sewage treatment method of marine facility |
| CN104445821A (en) * | 2014-12-03 | 2015-03-25 | 上海理工大学 | Process combination system for integrated treatment of micro-polluted raw water and method of process combination system |
| CN104445821B (en) * | 2014-12-03 | 2016-09-14 | 上海理工大学 | The process combination system and method for close-coupled processing micro-polluted raw |
| CN104961232A (en) * | 2015-06-16 | 2015-10-07 | 徐州工程学院 | Vertical integral sewage treatment plant |
| CN105056591A (en) * | 2015-07-20 | 2015-11-18 | 清华大学深圳研究生院 | Suspended rapid filter |
| CN105271520A (en) * | 2015-09-16 | 2016-01-27 | 徐雪祥 | Annular biological aerated filter and application thereof |
| CN105347465A (en) * | 2015-12-12 | 2016-02-24 | 刘微 | Modified intensive aeration and vein type biofilter |
| CN107055871A (en) * | 2017-05-03 | 2017-08-18 | 北京师范大学 | A kind of new coagulating sedimentation retention filtering air-water backwashing integrated high-efficiency filter tank |
| CN107055871B (en) * | 2017-05-03 | 2020-12-01 | 北京师范大学 | Novel coagulating sedimentation interception and filtration air-water backwashing integrated high-efficiency filter tank |
| CN110845009A (en) * | 2019-11-09 | 2020-02-28 | 上海电站辅机厂有限公司 | Anaerobic and aerobic biochemical integrated device |
| CN110845009B (en) * | 2019-11-09 | 2023-08-01 | 上海电站辅机厂有限公司 | Anoxic and aerobic biochemical integrated device |
| CN114105406A (en) * | 2021-10-29 | 2022-03-01 | 江苏河海给排水成套设备有限公司 | Household wet garbage and domestic sewage treatment system and treatment method |
| CN114105406B (en) * | 2021-10-29 | 2022-11-04 | 江苏河海给排水成套设备有限公司 | Household wet garbage and domestic sewage treatment system and treatment method |
| CN115385537A (en) * | 2022-08-16 | 2022-11-25 | 滁州职业技术学院 | Activation treatment equipment based on environmental engineering sludge microorganisms |
| CN115340248A (en) * | 2022-08-20 | 2022-11-15 | 滁州职业技术学院 | Comprehensive sewage purification treatment equipment for environmental engineering |
| CN116925889A (en) * | 2023-09-18 | 2023-10-24 | 中国市政工程西南设计研究总院有限公司 | Nitrifying bacteria enrichment culture device and sewage treatment device and method |
| CN116925889B (en) * | 2023-09-18 | 2024-02-02 | 中国市政工程西南设计研究总院有限公司 | Sewage treatment device and method |
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