CN109095725A - A kind of leachate in garbage transfer station processing Integration Equipment - Google Patents
A kind of leachate in garbage transfer station processing Integration Equipment Download PDFInfo
- Publication number
- CN109095725A CN109095725A CN201811117716.4A CN201811117716A CN109095725A CN 109095725 A CN109095725 A CN 109095725A CN 201811117716 A CN201811117716 A CN 201811117716A CN 109095725 A CN109095725 A CN 109095725A
- Authority
- CN
- China
- Prior art keywords
- pond
- leachate
- transfer station
- pump
- biological reaction
- 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.)
- Pending
Links
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 32
- 238000012546 transfer Methods 0.000 title claims abstract description 21
- 230000010354 integration Effects 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 title claims abstract description 14
- 239000012528 membrane Substances 0.000 claims abstract description 37
- 238000011282 treatment Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000004062 sedimentation Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000011001 backwashing Methods 0.000 claims abstract description 4
- 238000010992 reflux Methods 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims description 15
- 239000012510 hollow fiber Substances 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims 1
- 230000001376 precipitating effect Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 8
- 239000000149 chemical water pollutant Substances 0.000 description 6
- 241000209202 Bromus secalinus Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010841 municipal wastewater Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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)
- Separation Using Semi-Permeable Membranes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of leachate in garbage transfer station to handle Integration Equipment, including treatment region and equipment room, the treatment region includes the multistage anaerobic pond that setting is sequentially communicated by process flow, anoxic pond, aerobic tank, membrane biological reaction pond and sedimentation basin, is equipped with membrane bioreactor in the membrane biological reaction pond；It is provided with elevator pump in the equipment room, reflux pump, water producing tank, produces water pump, power control cabinet, cleaning filter, medicine-chest, dosing pump, backwashing pump, the blower for being aerated to the aerobic tank and membrane biological reaction pond and the temperature-adjusting device for being controlled temperature in the treatment region.The present invention has evaded the problem that cell land occupation is insufficient, water is unstable；Using integrated processing technique, advanced treating is carried out to percolate, not only meets the requirement of standard water discharge discharge, and also has the advantages that operation energy consumption is low, treatment effeciency is high.
Description
Technical field
The present invention relates to a kind of leachate in garbage transfer station to handle Integration Equipment.
Background technique
Landfill leachate is the used water difficult to degradate of a kind of high organic matter, high-concentration ammonia-nitrogen at present.Cell terminal percolate
The mixing of the percolate, sanitary sewage, kitchen sewage and the various wastewaters such as interior ground flushing water of standing that are generated for compressed garbage, processing
Difficulty is big.
The characteristics of in view of the above landfill leachate, is at present percolated cell garbage transfer station in conjunction with the situation of existing cell
The processing of liquid has the following problems:
Foundation of civil work is built in cell limited floor space, no more vacant lots, therefore it is difficult to build percolate processing sewage plant
Greatly；
Cell garbage transfer station water is unstable, and the fluctuation of water increases the control difficulty of biochemical treatment, and using life
Change processing and needs larger occupied area；
Cell terminal landfill leachate is largely direct emission at present, since Landfill Leachate Pollution degree is much higher than
Municipal wastewater, therefore great impact is brought to municipal wastewater treating stations, it needs to carry out cell leachate in garbage transfer station independent
It is discharged after processing；
The processing of cell leachate in garbage transfer station needs to reach three-level discharge standard, therefore need to carry out depth to percolate
Reason.
Therefore, it is necessary to a kind of water quality treatments can satisfy discharge standard, low-consumption high-efficiency and can be with the removable of rapid deployment
Portable cell terminal landfill leachate treatment integrated apparatus.
Summary of the invention
Object of the present invention is to provide a kind of leachate in garbage transfer station of low-consumption high-efficiency in view of the defects existing in the prior art
Integration Equipment is handled, landfill leachate treatment efficiency is improved using " anaerobe-oxygen deficient+aerobic+MBR+ coagulating sedimentation " technique.This
The Integration Equipment occupied area of invention is small, low energy consumption, treatment effeciency is high, can satisfy the processing of cell leachate in garbage transfer station
It is required that.
The present invention to achieve the above object, adopts the following technical scheme that a kind of leachate in garbage transfer station processing integration
Equipment, including treatment region and equipment room, the treatment region include the multistage anaerobic pond that setting is sequentially communicated by process flow, anoxic
Pond, aerobic tank, membrane biological reaction pond and sedimentation basin are equipped with membrane bioreactor in the membrane biological reaction pond；The equipment room
Inside be provided with elevator pump, reflux pump, water producing tank, produce water pump, power control cabinet, cleaning filter, medicine-chest, dosing pump, backwashing pump, for pair
The blower that the aerobic tank and membrane biological reaction pond are aerated and the temperature for being controlled temperature in the treatment region
Spend regulating device.
Further, the treatment region and equipment room or so are spaced apart, and more anaerobic ponds and anoxic pond, aerobic tank are left
The right side is spaced apart, and is spaced apart before and after the anoxic pond and aerobic tank, separates and sets before and after the membrane biological reaction pond and sedimentation basin
It sets.
Further, the treatment region and equipment room are arranged in a container body, and the container body uses carbon steel
Anticorrosion structure.
Further, the multistage anaerobic pond is two-stage anaerobic pond, and each anaerobic pond includes inhalant region, reaction zone and three-phase
Separator.
Further, be provided with hollow fiber film assembly in the membrane biological reaction pond, the hollow fiber film assembly by
100%PTFE porous material is made.
Further, the foul smell that the anaerobic pond, anoxic pond, aerobic tank and sludge concentration and dewatering system generate is through pipeline
Garbage transfer station is sent to by air-introduced machine after collection to be uniformly processed.
Further, the residue that the multistage anaerobic pond, anoxic pond, aerobic tank, membrane biological reaction pond and sedimentation basin generate
Sludge send to garbage storing through sludge pump promotion and cheats, and sludge is attached on rubbish after rubbish retains, and percolate returns to percolate receipts
Ji Keng.
Beneficial effects of the present invention: the present invention has evaded the problem that cell land occupation is insufficient, water is unstable；Using integration
Treatment process carries out advanced treating to percolate, meets standard water discharge emission request.The special PTFE film of equipment deployment of the invention
On the one hand component can be improved biochemical sludge concentration, reduce biochemical pool volume, reinforce Biochemical Treatment, realize percolate
Efficient process；On the other hand, the pollutants ability such as the membrane module oil rub resistance is strong, and flux recovery is thorough, and long service life reduces
The energy consumption and investment integrally equipped.
It is provided with hollow fiber film assembly in the membrane biological reaction pond, since the hollow fiber film assembly is by 100%
PTFE porous material is made, so that it has the characteristics that high-throughput, strong durability and permanent hydrophilic, therefore membrane bioreactor
It is convenient that clean and maintenance is compared with other membrane material reactors, the service life is longer, and energy consumption is lower；The membrane module resistance tocrocking simultaneously
By force, the high feature of anti impulsion load can make biochemical system sludge concentration be up to 30g/L, make integration apparatus biochemical treatment
High-efficient, effluent quality is good；And sludge concentration height can reduce biochemistry pool pool capacity and process equipment, reduce integration apparatus
Cost of investment.
Detailed description of the invention
Fig. 1 is vertical view figure structure schematic representation of the invention.
Specific embodiment
Shown in Fig. 1, it is related to a kind of leachate in garbage transfer station processing Integration Equipment, including sewage treatment cabinet, it is above-mentioned
Treatment region and equipment room 5 are provided in waste water treatment box body, above-mentioned treatment region includes level-one anaerobic pond 1 and secondary anaerobic pond 2, lacks
Oxygen pond 3, aerobic tank 6, membrane biological reaction pond 9 and sedimentation basin 4.Membrane bioreactor is equipped in above-mentioned membrane biological reaction pond 9；It is above-mentioned
It is provided with elevator pump in equipment room 5, reflux pump, water producing tank, produces water pump, power control cabinet, cleaning filter, medicine-chest, dosing pump, backwash
Pump, the blower for being aerated to the aerobic tank 6 and membrane biological reaction pond 9 and for temperature in the treatment region
The temperature-adjusting device of control.
Wherein, the sewage treatment cabinet is made of a container body, and cabinet uses carbon steel anticorrosion structure, and cabinet is placed
Carrying movement is carried out in can according to need on foundation of civil work, equipment gate 11 is arranged in top of the box.Treatment region and equipment room
5 or so are spaced apart, and anaerobic pond 2 is spaced apart with anoxic pond 3, aerobic tank 6 or so, separate and set before and after anoxic pond 3 and aerobic tank 6
It sets, is spaced apart before and after membrane biological reaction pond 9 and sedimentation basin 4.
In use, sewage enters anaerobic pond 1 from admitting pipe joint 7, level-one anaerobic pond 1, which is discharged, enters secondary anaerobic pond 2, two
Grade 2 water outlet of anaerobic pond is connected with 3 water inlet of anoxic pond, and 3 water outlet of anoxic pond is connected with 6 water inlet of aerobic tank, and aerobic tank 6 goes out
The mouth of a river is connected with 9 water inlet of membrane biological reaction pond, and the water outlet of membrane biological reaction pond 9 enters sedimentation basin 4,4 standard water discharge of sedimentation basin row
It puts.
Wherein, multistage anaerobic pond is level-one anaerobic pond 1 and the two-stage anaerobic that secondary anaerobic pond 2 is constituted, each anaerobic pond packet
Include inhalant region, reaction zone and three phase separator.
Wherein, it is provided with hollow fiber film assembly in the membrane biological reaction pond, the hollow fiber film assembly is by 100%
PTFE porous material is made.All back washing devices and chemicals dosing plant are placed in equipment room 5, and membrane cisterna needs to close when cleaning
Excess flow valve 10, sewage are flowed out from emptying pipe fitting 8.Wherein, it is provided with hollow fiber film assembly in the membrane biological reaction pond, by
It is made in the hollow fiber film assembly of 100%PTFE porous material, so that it has high-throughput, strong durability and permanent parent
Aqueous feature, therefore membrane bioreactor compares clean and maintenance with other membrane material reactors conveniently, the service life is longer, energy
It consumes lower；The feature that membrane module resistance tocrocking is strong, anti impulsion load is high simultaneously, can be such that biochemical system sludge concentration is up to
30g/L keeps integration apparatus biochemical treatment high-efficient, and effluent quality is good；And sludge concentration height can reduce biochemistry pool pool capacity
And process equipment, reduce the cost of investment of integration apparatus.
Wherein, the water outlet of membrane biological reaction pond 9 carries out coagulating sedimentation after entering sedimentation basin 4, by adding medicament into sewage
Water outlet is set to reach discharge standard.
Wherein, the foul smell warp that level-one anaerobic pond 1 and secondary anaerobic pond 2, anoxic pond 3, aerobic tank 6 and sedimentation basin 4 generate
Pipeline is sent to garbage transfer station by air-introduced machine after collecting and is uniformly processed.
The excess sludge of the generations such as anaerobic pond, anoxic pond, aerobic tank and membrane cisterna send to garbage storing through sludge pump promotion and cheats, dirty
Mud is attached on rubbish after rubbish retains, and percolate returns to leachate collection hole.
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 (7)
1. a kind of leachate in garbage transfer station handles Integration Equipment, which is characterized in that including treatment region and equipment room, the place
Managing area includes the multistage anaerobic pond that setting is sequentially communicated by process flow, anoxic pond, aerobic tank, membrane biological reaction pond and precipitating
Pond is equipped with membrane bioreactor in the membrane biological reaction pond；Be provided in the equipment room elevator pump, reflux pump, water producing tank,
It produces water pump, power control cabinet, cleaning filter, medicine-chest, dosing pump, backwashing pump, be used to carry out the aerobic tank and membrane biological reaction pond
The blower of aeration and temperature-adjusting device for being controlled temperature in the treatment region.
2. a kind of leachate in garbage transfer station as described in claim 1 handles Integration Equipment, which is characterized in that the processing
Area and equipment room or so are spaced apart, and the multistage anaerobic pond is spaced apart with anoxic pond, aerobic tank or so, the anoxic pond and
It is spaced apart before and after aerobic tank, is spaced apart before and after the membrane biological reaction pond and sedimentation basin.
3. a kind of leachate in garbage transfer station as described in claim 1 handles Integration Equipment, which is characterized in that the processing
Area and equipment room are arranged in a container body, and the container body uses carbon steel anticorrosion structure.
4. a kind of leachate in garbage transfer station as described in claim 1 handles Integration Equipment, which is characterized in that the multistage
Anaerobic pond is two-stage anaerobic pond, and each anaerobic pond includes inhalant region, reaction zone and three phase separator.
5. a kind of leachate in garbage transfer station as described in claim 1 handles Integration Equipment, which is characterized in that the film is raw
Hollow fiber film assembly is provided in object reaction tank, the hollow fiber film assembly is made of 100%PTFE porous material.
6. a kind of leachate in garbage transfer station as described in claim 1 handles Integration Equipment, which is characterized in that the anaerobism
The foul smell that pond, anoxic pond, aerobic tank and sludge concentration and dewatering system generate is sent in rubbish after pipeline is collected by air-introduced machine
Turn station to be uniformly processed.
7. a kind of leachate in garbage transfer station as described in claim 1 handles Integration Equipment, which is characterized in that the multistage
The excess sludge that anaerobic pond, anoxic pond, aerobic tank, membrane biological reaction pond and sedimentation basin generate is sent through sludge pump promotion to garbage storing
Hole, sludge are attached on rubbish after rubbish retains, and percolate returns to leachate collection hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117716.4A CN109095725A (en) | 2018-09-21 | 2018-09-21 | A kind of leachate in garbage transfer station processing Integration Equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117716.4A CN109095725A (en) | 2018-09-21 | 2018-09-21 | A kind of leachate in garbage transfer station processing Integration Equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109095725A true CN109095725A (en) | 2018-12-28 |
Family
ID=64867516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117716.4A Pending CN109095725A (en) | 2018-09-21 | 2018-09-21 | A kind of leachate in garbage transfer station processing Integration Equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109095725A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255763A (en) * | 2019-06-20 | 2019-09-20 | 湖北中地星河环保科技有限公司 | A kind of leachate integrated processing unit and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870543A (en) * | 2010-07-14 | 2010-10-27 | 柳州森淼环保技术开发有限公司 | Landfill percolate treatment novel process |
| CN102557357A (en) * | 2012-02-21 | 2012-07-11 | 东莞理工学院 | Method and system for treating wastewater in soy sauce brewing industry |
| CN204185340U (en) * | 2014-09-30 | 2015-03-04 | 天和自动化科技（苏州）股份有限公司 | The removable garbage leachate treatment device of container-type |
| CN104773907A (en) * | 2015-03-26 | 2015-07-15 | 苏州苏科环保科技有限公司 | Movable high integration membrane bioreactor |
| CN205917142U (en) * | 2016-08-29 | 2017-02-01 | 四川宇阳环境工程有限公司 | Integration small town domestic sewage treatment equipment |
| CN209065678U (en) * | 2018-09-21 | 2019-07-05 | 苏州苏科环保科技有限公司 | A kind of leachate in garbage transfer station processing Integration Equipment |
-
2018
- 2018-09-21 CN CN201811117716.4A patent/CN109095725A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870543A (en) * | 2010-07-14 | 2010-10-27 | 柳州森淼环保技术开发有限公司 | Landfill percolate treatment novel process |
| CN102557357A (en) * | 2012-02-21 | 2012-07-11 | 东莞理工学院 | Method and system for treating wastewater in soy sauce brewing industry |
| CN204185340U (en) * | 2014-09-30 | 2015-03-04 | 天和自动化科技（苏州）股份有限公司 | The removable garbage leachate treatment device of container-type |
| CN104773907A (en) * | 2015-03-26 | 2015-07-15 | 苏州苏科环保科技有限公司 | Movable high integration membrane bioreactor |
| CN205917142U (en) * | 2016-08-29 | 2017-02-01 | 四川宇阳环境工程有限公司 | Integration small town domestic sewage treatment equipment |
| CN209065678U (en) * | 2018-09-21 | 2019-07-05 | 苏州苏科环保科技有限公司 | A kind of leachate in garbage transfer station processing Integration Equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255763A (en) * | 2019-06-20 | 2019-09-20 | 湖北中地星河环保科技有限公司 | A kind of leachate integrated processing unit and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209872690U (en) | Leachate treatment process device for garbage transfer station | |
| CN102225803B (en) | Biomembrane reactor, waste water treating system and method for treating waste water | |
| CN101323494A (en) | Carwash circulating water processing system | |
| CN1478059A (en) | Process and apparatus for treating waste water | |
| CN108178438A (en) | A kind of rural domestic sewage treatment system and purification method | |
| CN202785899U (en) | Sewage treatment device | |
| CN201737812U (en) | Integrated sewage treating and recycling device and housing estate sewage treatment system | |
| CN108623102A (en) | A kind of combined type SBR-MBR-Fenton Pig raising wastewater processing methods | |
| CN209797712U (en) | Medium-high concentration comprehensive sewage nitrogen and phosphorus removal treatment system | |
| CN209065678U (en) | A kind of leachate in garbage transfer station processing Integration Equipment | |
| CN209685437U (en) | A kind of garbage transfer station sewage disposal system | |
| CN210150899U (en) | Hospital domestic sewage treatment system | |
| CN109095725A (en) | A kind of leachate in garbage transfer station processing Integration Equipment | |
| CN207713606U (en) | A kind of processing system with excrement medical waste water | |
| CN107720947B (en) | Mobile sewage treatment vehicle | |
| CN105693036A (en) | Intelligent sewage treatment system | |
| CN215102724U (en) | Integrated integrated garbage transfer station leachate treatment device | |
| CN205575883U (en) | Domestic sewage treatment device | |
| CN214612022U (en) | Landfill leachate handles integrated device | |
| CN205528266U (en) | Reuse of reclaimed water sewage treatment device | |
| CN211004998U (en) | Kitchen garbage leachate treatment facility | |
| CN210176666U (en) | Domestic waste filtration liquid high efficiency treatment all-in-one | |
| CN203256094U (en) | Integrated type sewage treatment equipment | |
| CN203346179U (en) | Oxygen-increasing device, self-flow oxygen-increasing biological filter, self-flow oxygen-enriching ecological bed and sewage treatment system | |
| CN211847575U (en) | Integrated sewage treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |