CN108439616A - A kind of microbial treatment method improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe discharge water quality - Google Patents
A kind of microbial treatment method improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe discharge water quality Download PDFInfo
- Publication number
- CN108439616A CN108439616A CN201810568576.6A CN201810568576A CN108439616A CN 108439616 A CN108439616 A CN 108439616A CN 201810568576 A CN201810568576 A CN 201810568576A CN 108439616 A CN108439616 A CN 108439616A
- Authority
- CN
- China
- Prior art keywords
- pipe
- sewage
- rain
- municipal
- river
- 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
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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of microbial treatment methods for improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe and discharging water quality, include the following steps：Nutrient solution, the growth-promoting agent that addition is used for the microbial inoculum of treated sewage or the microorganism is promoted to grow into municipal sewer pipe；When being directly injected into microbial inoculum, liquid injection port enables bacterium solution and sewage be sufficiently mixed reaction at a distance from the floss hole of sewer pipe；Bacterium solution is set to be sufficiently mixed with sewage by itself mobility of water body in pipeline, and using pipeline inside as reactor.The present invention makes bacterium solution be sufficiently mixed with sewage by itself mobility of water body in pipeline, and using pipeline inside as reactor, is not take up river area, and bacterium solution will not silt combined pipeline up, bacteria total amount can be with manual control, stable reaction.The black smelly problem in river caused by putting river/river water can effectively be mitigated, the content for putting ammonia nitrogen pollutant in river/river water can be reduced.
Description
The invention belongs to pollutant abatement technology fields, and in particular to a kind of to utilize microorganism in rainwater dirt combined pipeline
The method that is handled of sewage.
Background technology
It is " control source is this, is cut dirty preferential ", " science diagnoses, and focuses on reparations ", " building pipe to lay equal stress on, strengthen and safeguard " and " comprehensive to apply
Control, Coordinate development " four principles embody the systematicness that dirty work is cut in control source, wherein and it while is also most to have most directly to cut a dirt to be
The control measures of effect, but " perennial draingage " of more existing discharge outlet, it is unworkable to cut dirt, is especially arranged some rainwater
Mouth, interflow floss hole are put, pumping plant puts Jiangkou, can not take close measure.This just needs investigating and diagnosing, findding out that there are problems
Under the premise of, it suits the remedy to the case, formulates practical and effective measure.
Put river cause the black smelly principal element in river be put river sewage concentration is big, flow is big, once put river to river
Road water quality impact is very big, also bed mud can be caused anti-muddy, thus reduce river external source put river pollution to river training water quality very
It is necessary to.Existing clear and coherent mode mostly uses manual type, and labor intensity is big, and clear and coherent effect is poor, timely and effective cannot remove fine
It is deposited on the pollutant in pipeline.Cause river smelly in addition, putting river, seriously affects nearby residents life, there is an urgent need for find
To the solution put river and cause river smelly can be improved.
China has using more microorganism sewage water treatment process at present：Hydrolysis-aerobic Process, AB techniques, A/O techniques
Deng, be mostly in pipeline using aeration, increase the modes such as filler and returned sludge, stability is poor, easily silts up.
Invention content
That present invention aim to address the stability of microorganism sewage water treatment process in the prior art is poor, occupies river face
Product, easy the technical issues of silting up.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：It adds and is used for into municipal sewer pipe
The microbial inoculum of treated sewage or nutrient solution, the growth-promoting agent for promoting the microorganism to grow；When being directly injected into microbial inoculum
When, liquid injection port enables bacterium solution and sewage be sufficiently mixed reaction at a distance from the floss hole of sewer pipe；When injection is nutrition
When liquid, growth-promoting agent, liquid injection port enables nutrient solution, growth-promoting agent turn out micro- life in pipeline at a distance from the floss hole of sewer pipe
Object, and make microorganism and sewage hybrid reaction；Make bacterium solution or nutrient solution, growth-promoting by itself mobility of water body in pipeline
Agent is sufficiently mixed with sewage, and using pipeline inside as reactor.
Further, when being directly injected into microbial inoculum, the strain for playing injection is facultative anaerobic bacteria.
Further, the calcium oxide or aluminum sulfate for changing pipeline internal oxidition reduction potential are also added in sewer pipe.
Further, when being directly injected into microbial inoculum, the bacterium solution of injection cultivates micro- life by the way of cultivating on the bank
The incubator of object bacterium solution includes babinet, waterworks, drug delivery device, aerator, agitating device, culture apparatus and inlet and outlet pipes
Road, the culture apparatus are located in babinet for cultivating microorganism, the waterworks by inlet and outlet pipe lines extract river water or
Person's river is that drug delivery device supplies water and culture apparatus supplies water, and agitating device, which is located inside drug delivery device, plays stirring action, administration dress
It sets and uniformly mixed microbial inoculum is passed through in culture apparatus, aerator is passed through air into culture apparatus.
Further, cultured microbial inoculum is put by inspection shaft or Forebay of Pumping Station to combined pipeline.
Further, cultured microbial inoculum is added by metering pump from culture apparatus outward.
From above-mentioned technical proposal it can be seen that the present invention has the following advantages：Can the dense of bacterium solution be configured according to actual needs
Degree, incubator can be arranged on the coast used by cultivating bacterium solution, be not take up river area, and bacterium solution will not silt collecting fitting up
Road, bacteria total amount can be with manual control, stable reactions.The black smelly problem in river caused by putting river/river water can effectively be mitigated, can be reduced
Put the content of ammonia nitrogen pollutant in river/river water.
Description of the drawings
Fig. 1 is the principle of the present invention figure；
Fig. 2 is the structural schematic diagram of the incubator of the present invention.
Specific implementation mode
It elaborates to the specific implementation mode of the present invention below in conjunction with attached drawing.
Embodiment one
Carry out Bacteria Culture first, in the present embodiment by taking facultative anaerobic bacteria Yeasts as an example, the training that is used in the present invention
Support device 1 as shown in Figure 1 comprising the babinet 1-3 and power distribution cabinet 1-1 being arranged in babinet 1-3, waterworks 1-2, administration dress
1-7, aerator 1-4, agitating device 1-8, culture apparatus 1-5 and inlet and outlet pipe lines are set, the culture apparatus is located in babinet
For cultivating microorganism, it is that drug delivery device supplies water and cultivate dress that waterworks 1-2 extracts river water or river by water inlet line
Water supply is set, agitating device is located inside drug delivery device, and when waterworks plus water enter drug delivery device, agitating device is stirred
It mixes, after stirring evenly, drug delivery device leads to uniformly mixed nutrient solution in people's culture apparatus, and aerator is again into culture apparatus
It is passed through air, makes liquid-to-air contact oxygenation, temperature controller is additionally provided in culture apparatus, for controlling water temperature.
After bacterium solution culture, it is added by metering pump 2 and pesticide feeding duct 3 to rainwater/confluence of rainwater and sewage pipeline 5
End, before sewage discharge enters river/river, is put into rainwater/confluence of rainwater and sewage pipeline 5, here for ensuring bacterium solution and collecting fitting
Being sufficiently mixed and reacting for road, need to keep with rainwater/confluence of rainwater and sewage pipeline 6 at a distance from one section at bacterium solution dispensing, this distance can be with
100 meters or so are maintained at, therefore microbial inoculum first can be first passed through to inspection shaft or Forebay of Pumping Station content, is being passed through interflow
In pipeline, bacterium solution is set to be sufficiently mixed with sewage by itself mobility of water body in pipeline.
Microbial inoculum enters after pipeline carries out hypoxia response by reactor and sewage of pipeline, by the nutrition in sewage at
Divide and carry out initial breakdown, after the completion of sewage is reacted with microbial inoculum, river is entered by rainwater/confluence of rainwater and sewage discharge of pipes.In addition
It can also be as adding calcium oxide or aluminum sulfate in municipal pipeline, thus it is possible to vary dissolved oxygen or oxidation in pipeline in water body are also
Former current potential reduces the accumulation of bed mud in pipeline to further mitigate the black smelly degree of water in pipeline.
Its specific treatment process is as shown in Figure 2.Processing method using the present invention, treatment effect are stablized, can be according to reality
It needs, configures the concentration of bacterium solution, incubator can be arranged on the coast used by cultivating bacterium solution, be not take up river area, and bacterium
Liquid will not silt combined pipeline up, and bacteria total amount can be with manual control, stable reaction.River caused by putting river/river water can effectively be mitigated
The black smelly problem in road, can reduce the content for putting ammonia nitrogen pollutant in river/river water.
Embodiment two
The nutrient solution or growth-promoting agent for promoting microorganism growth are directly injected into municipal sewer pipe, by pipeline
Itself mobility of water body makes nutrient solution, and either growth-promoting agent is sufficiently mixed nutrient solution or growth-promoting agent growth-promoting in the duct with sewage
Microorganism grows, and the microorganism of generation is recycled to carry out sewage disposal, thus inlet and floss hole need to keep it is certain away from
From may remain in 2km or more, nutrient solution, growth-promoting liquid and microorganism made to have certain reaction time in the duct, to dirt
Water is decomposed.
Further, it is also possible to cultured microbial inoculum, effect stability are directly injected into pipeline, and additive amount is convenient for
Control.
Claims (6)
1. a kind of microorganism improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe discharge water quality
Processing method, it is characterised in that：
Into municipal sewer pipe addition for treated sewage microbial inoculum or promote the microorganism grow nutrient solution,
Growth-promoting agent；When being directly injected into microbial inoculum, liquid injection port enables bacterium solution and sewage at a distance from the floss hole of sewer pipe
It is sufficiently mixed reaction；When injection is nutrient solution, growth-promoting agent, liquid injection port makes nutrition at a distance from the floss hole of sewer pipe
Liquid, growth-promoting agent can turn out microorganism in pipeline, and make microorganism and sewage hybrid reaction；By in pipeline water body from
Body mobility makes bacterium solution or nutrient solution, growth-promoting agent and sewage be sufficiently mixed, and using pipeline inside as reactor.
2. a kind of improvement municipal administration rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater according to claim 1
Pipe discharges the microbial treatment method of water quality, it is characterised in that：When being directly injected into microbial inoculum, the strain for playing injection is simultaneous
Property anaerobic bacteria.
3. a kind of improvement municipal administration rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or city according to claim 1 or 2
Political affairs sewage pipe discharges the microbial treatment method of water quality, it is characterised in that：It is also added in sewer pipe and changes pipeline internal oxidition also
The calcium oxide or aluminum sulfate of former current potential.
4. a kind of improvement municipal administration rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater according to claim 2
Pipe discharges the microbial treatment method of water quality, it is characterised in that：When being directly injected into microbial inoculum, the bacterium solution of injection uses bank
The mode of upper culture, the incubator for cultivating microbial inoculum include babinet, waterworks, drug delivery device, aerator, stirring dress
It sets, culture apparatus and inlet and outlet pipe lines, the culture apparatus is located at for cultivating microorganism in babinet, and the waterworks pass through
It is that drug delivery device supplies water and culture apparatus supplies water that inlet and outlet pipe lines, which extract river water or river, and agitating device is located in drug delivery device
Stirring action is played in portion, and uniformly mixed microbial inoculum is passed through in culture apparatus by drug delivery device, and aerator is to culture apparatus
In be passed through air.
5. a kind of improvement municipal administration rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater according to claim 4
Pipe discharges the microbial treatment method of water quality, it is characterised in that：Before cultured microbial inoculum is by inspection shaft or pumping plant
Pond is put into combined pipeline.
6. a kind of improvement municipal administration rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater according to claim 5
Pipe discharges the microbial treatment method of water quality, it is characterised in that：Cultured microbial inoculum is by metering pump from culture apparatus
In add outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568576.6A CN108439616A (en) | 2018-06-05 | 2018-06-05 | A kind of microbial treatment method improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe discharge water quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568576.6A CN108439616A (en) | 2018-06-05 | 2018-06-05 | A kind of microbial treatment method improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe discharge water quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108439616A true CN108439616A (en) | 2018-08-24 |
Family
ID=63206064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810568576.6A Pending CN108439616A (en) | 2018-06-05 | 2018-06-05 | A kind of microbial treatment method improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe discharge water quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108439616A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697978A (en) * | 2019-10-12 | 2020-01-17 | 上海同瑞环保科技有限公司 | Method for improving purification capacity of drainage system |
| CN115057537A (en) * | 2022-05-23 | 2022-09-16 | 无锡市瑞景城市服务有限公司 | Water treatment method for municipal drainage pipe network |
| CN116354521A (en) * | 2023-05-30 | 2023-06-30 | 河北雄安德荫源环境科技有限公司 | Domestic sewage pre-decomposition device and method |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197092A (en) * | 1995-01-23 | 1996-08-06 | Ebara Jitsugyo Kk | Method and device of water treatment |
| WO2000001621A1 (en) * | 1998-07-03 | 2000-01-13 | Romero Jean Louis | Biological means for sanitary drainage of polluted effluents and/or maintenance of sewer pipe system for evacuating said effluents |
| CN101387119A (en) * | 2008-10-28 | 2009-03-18 | 北京首钢国际工程技术有限公司 | Rainwater gathering, processing and re-using system for large-sized workshop roof and method thereof |
| CN101863550A (en) * | 2010-06-29 | 2010-10-20 | 上海大学 | Primary rainwater microorganism processing method and device combined with rainwater storage tank |
| CN102531201A (en) * | 2012-02-06 | 2012-07-04 | 宁波天韵生态治理工程有限公司 | Method and device for utilizing microorganism in-situ circulation cultivation to treat water body pollution |
| CN103269984A (en) * | 2011-02-10 | 2013-08-28 | 小川弘 | Sewage treatment system in sewerage system |
| CN103628536A (en) * | 2013-12-11 | 2014-03-12 | 三明兴业科技（天津）有限公司 | Microbial flora release device of urinal and sewer line |
| CN105368745A (en) * | 2015-12-01 | 2016-03-02 | 深圳市大治生光环保科技有限公司 | Composite microbial preparation for treating black and odorous river and preparation method thereof |
| CN105540914A (en) * | 2010-03-10 | 2016-05-04 | 住友金属矿山株式会社 | Method for wastewater treatment for wastewater containing aluminum, magnesium and manganese |
| CN106219879A (en) * | 2016-08-26 | 2016-12-14 | 深圳云吉环保科技有限公司 | A kind of sewage-treatment plant realizing effluent cycle utilization |
| CN107265615A (en) * | 2017-07-31 | 2017-10-20 | 中冶华天工程技术有限公司 | One kind interflow, mixed flow rain sewage water treatment method and system |
| WO2017201552A1 (en) * | 2016-05-16 | 2017-11-23 | Van Dan Truong | Apparatus for treating wastewater and a system for collecting and treating wastewater combining rainwater drainage |
| CN107381835A (en) * | 2017-08-30 | 2017-11-24 | 中冶华天工程技术有限公司 | A kind of movable water quality purifies microbial inoculum slow-released system |
| CN207046957U (en) * | 2017-05-27 | 2018-02-27 | 山东格润内泽姆环保科技有限公司 | A kind of high-effective microorganism sewage-treatment plant |
-
2018
- 2018-06-05 CN CN201810568576.6A patent/CN108439616A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197092A (en) * | 1995-01-23 | 1996-08-06 | Ebara Jitsugyo Kk | Method and device of water treatment |
| WO2000001621A1 (en) * | 1998-07-03 | 2000-01-13 | Romero Jean Louis | Biological means for sanitary drainage of polluted effluents and/or maintenance of sewer pipe system for evacuating said effluents |
| CN101387119A (en) * | 2008-10-28 | 2009-03-18 | 北京首钢国际工程技术有限公司 | Rainwater gathering, processing and re-using system for large-sized workshop roof and method thereof |
| CN105540914A (en) * | 2010-03-10 | 2016-05-04 | 住友金属矿山株式会社 | Method for wastewater treatment for wastewater containing aluminum, magnesium and manganese |
| CN101863550A (en) * | 2010-06-29 | 2010-10-20 | 上海大学 | Primary rainwater microorganism processing method and device combined with rainwater storage tank |
| CN103269984A (en) * | 2011-02-10 | 2013-08-28 | 小川弘 | Sewage treatment system in sewerage system |
| CN102531201A (en) * | 2012-02-06 | 2012-07-04 | 宁波天韵生态治理工程有限公司 | Method and device for utilizing microorganism in-situ circulation cultivation to treat water body pollution |
| CN103628536A (en) * | 2013-12-11 | 2014-03-12 | 三明兴业科技（天津）有限公司 | Microbial flora release device of urinal and sewer line |
| CN105368745A (en) * | 2015-12-01 | 2016-03-02 | 深圳市大治生光环保科技有限公司 | Composite microbial preparation for treating black and odorous river and preparation method thereof |
| WO2017201552A1 (en) * | 2016-05-16 | 2017-11-23 | Van Dan Truong | Apparatus for treating wastewater and a system for collecting and treating wastewater combining rainwater drainage |
| CN106219879A (en) * | 2016-08-26 | 2016-12-14 | 深圳云吉环保科技有限公司 | A kind of sewage-treatment plant realizing effluent cycle utilization |
| CN207046957U (en) * | 2017-05-27 | 2018-02-27 | 山东格润内泽姆环保科技有限公司 | A kind of high-effective microorganism sewage-treatment plant |
| CN107265615A (en) * | 2017-07-31 | 2017-10-20 | 中冶华天工程技术有限公司 | One kind interflow, mixed flow rain sewage water treatment method and system |
| CN107381835A (en) * | 2017-08-30 | 2017-11-24 | 中冶华天工程技术有限公司 | A kind of movable water quality purifies microbial inoculum slow-released system |
Non-Patent Citations (1)
| Title |
|---|
| 王西俜等: "利用下水管网系统净化城市污水的中试研究", 《应用与环境生物学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697978A (en) * | 2019-10-12 | 2020-01-17 | 上海同瑞环保科技有限公司 | Method for improving purification capacity of drainage system |
| CN115057537A (en) * | 2022-05-23 | 2022-09-16 | 无锡市瑞景城市服务有限公司 | Water treatment method for municipal drainage pipe network |
| CN116354521A (en) * | 2023-05-30 | 2023-06-30 | 河北雄安德荫源环境科技有限公司 | Domestic sewage pre-decomposition device and method |
| CN116354521B (en) * | 2023-05-30 | 2023-11-03 | 河北雄安德荫源环境科技有限公司 | Domestic sewage pre-decomposition device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105776540B (en) | It is a kind of to treatment of advanced stage landfill leachate autotrophy advanced nitrogen biological treatment device and method | |
| CN105541021B (en) | A kind of quick start method of the continuous stream improvement UCT autotrophic denitrification dephosphorization process based on Anammox | |
| CN108439616A (en) | A kind of microbial treatment method improving municipal rain pipe, confluence of rainwater and sewage pipe, rain dirt mixed flow tube or municipal wastewater pipe discharge water quality | |
| CN105036335A (en) | Device and method for autotrophy advanced nitrogen removal biological treatment of mature landfill leachate | |
| CN208603838U (en) | Sewage conduct microbe treatment system | |
| CN106830565A (en) | A kind of waste water advanced removal of carbon and nitrogen processing unit and its technique | |
| CN103626295B (en) | Sewage disposal device and processing method | |
| CN112646705A (en) | Intelligent in-situ continuous domestication and propagation system for microorganisms and operation method and application thereof | |
| CN108002651A (en) | A kind of pond culture sewage circulating treating system and sewage water treatment method | |
| CN105174453A (en) | Horizontal integrated sewage processing device | |
| CN108675452A (en) | A kind of cultivating wastewater purification device | |
| CN205347142U (en) | Aquaculture wastewater treatment system | |
| CN108002645A (en) | A kind of culturing wastewater processing system | |
| CN205368029U (en) | Breed low CN of waste water and remove carbon processing apparatus than high -efficient denitrogenation of anaerobism natural pond liquid | |
| CN207375911U (en) | A kind of bacteria bed | |
| CN206843186U (en) | A kind of cultivating wastewater purification and recovery system | |
| CN205933394U (en) | In put that oxygen nitrifies, both ends anoxic denitrification denitrification device | |
| CN205528280U (en) | Freshwater aquaculture advanced waste treatment recycling system | |
| CN211712873U (en) | Artificial wetland purification system for treating rural domestic sewage | |
| CN211339201U (en) | Device for cooperatively treating biogas slurry and recycling resources through multiple processes | |
| CN207313222U (en) | A kind of intermittent aerating circular form biochemical reactor | |
| CN208700688U (en) | A kind of cultivating wastewater purification device | |
| CN208120926U (en) | A kind of pulsed integrated sewage treating apparatus | |
| CN205061798U (en) | Buried micro-power domestic sewage treatment equipment | |
| CN206529384U (en) | It is a kind of to discharge the device that internal carbon source reduces excess sludge discharge |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180824 |