CN114163074A - Method for treating tail water of sewage treatment plant by adopting constructed wetland - Google Patents

Method for treating tail water of sewage treatment plant by adopting constructed wetland Download PDF

Info

Publication number
CN114163074A
CN114163074A CN202111465419.0A CN202111465419A CN114163074A CN 114163074 A CN114163074 A CN 114163074A CN 202111465419 A CN202111465419 A CN 202111465419A CN 114163074 A CN114163074 A CN 114163074A
Authority
CN
China
Prior art keywords
sewage
artificial wetland
water
treating
adopting
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
Application number
CN202111465419.0A
Other languages
Chinese (zh)
Inventor
刘彤
王硕
范一凡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University
Original Assignee
Nanjing University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing University filed Critical Nanjing University
Priority to CN202111465419.0A priority Critical patent/CN114163074A/en
Publication of CN114163074A publication Critical patent/CN114163074A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used

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)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention discloses a method for treating tail water of a sewage treatment plant by adopting an artificial wetland, which comprises the following treatment steps: a. firstly, pumping out sewage in the artificial wetland, conveying the pumped-out sewage into a first treatment tank, and adding sodium sulfide into the first treatment tank for mixing, wherein the ratio of the sodium sulfide to the sewage is 1: 5; b. and c, after the step a is finished, conveying the treated sewage into a second treatment tank, and adding an organic matter treatment agent into the second treatment tank for mixing. The invention can effectively remove various pollutants in sewage, increases the range in the sewage treatment process, enables the whole artificial wetland to operate in a balanced way by cooperating with microorganisms, substrates, water bodies and plants, improves the pollution elimination thoroughness of the artificial wetland in the sewage, enables the plants in the artificial wetland to absorb and utilize nutrient substances in the sewage to the maximum extent, and can absorb and enrich toxic and harmful substances in part of the water bodies.

Description

Method for treating tail water of sewage treatment plant by adopting constructed wetland
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a method for treating tail water of a sewage treatment plant by adopting an artificial wetland.
Background
In order to practically protect the surface water environment, the tail water of a sewage treatment plant needs to be further treated and reaches the relevant standard in the surface water environment quality standard, and from the water inlet and outlet standards, COD (chemical oxygen demand) is shownCr、NH3N and TP are the focus of the treatment. According to patent 201810139269.6, a method for advanced treatment of tail water from sewage treatment plants by using artificial wetland is knownThe method comprises the following steps: step 1, lifting sewage to be treated by a lifting pump room, and then, entering a sedimentation tank for pretreatment, wherein particulate matters are settled; step 2, the sewage enters the surface flow artificial wetland from the sedimentation tank, and pollutants in the sewage are further degraded; step 3, sewage enters the composite artificial wetland from the surface flow artificial wetland, and pollutants are further degraded and denitrified to remove nitrogen; step 4, the sewage enters the ecological marsh wetland from the composite artificial wetland to further remove pollutants in the water; and 5, enabling the sewage to enter a natural ecological wetland with ecological landscape characteristics through the ecological marsh wetland, and finally treating the residual pollutants to obtain tail water which reaches the discharge standard. The invention has high water purification efficiency, high water passing speed, low early construction cost and low early construction cost.
At present, the existing method for treating the tail water of the sewage treatment plant by adopting the artificial wetland has some defects, such as; the existing method for treating the tail water of the sewage treatment plant by adopting the artificial wetland can not remove various pollutants in the sewage, limits the range in the sewage treatment process, can not be cooperated with microorganisms, matrixes, water bodies and plants, ensures that the whole artificial wetland operates in a balanced way, reduces the thoroughness of the artificial wetland in removing the pollution in the sewage, can not absorb and utilize nutrient substances in the sewage by the maximum function of the plants in the artificial wetland, and can also supplement toxic and harmful substances in part of the water bodies.
Disclosure of Invention
The invention aims to provide a method for treating tail water of a sewage treatment plant by adopting an artificial wetland, which solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a method for treating tail water of a sewage treatment plant by adopting an artificial wetland comprises the following treatment steps:
a. firstly, pumping out sewage in the artificial wetland, conveying the pumped-out sewage into a first treatment tank, and adding sodium sulfide into the first treatment tank for mixing, wherein the ratio of the sodium sulfide to the sewage is 1: 5;
b. after the step a is finished, conveying the treated sewage into a second treatment tank, adding an organic matter treatment agent into the second treatment tank, and mixing, wherein the ratio of the organic matter treatment agent to the sewage is 1: 3;
c. after the step b is finished, adding a proper amount of low-temperature bacteria into the treated sewage, and mixing for 15min at the rotating speed of 450r/min, wherein the ratio of the low-temperature bacteria to the sewage is 1: 4;
d. after the step c is finished, planting a proper amount of canna and calamus into the artificial wetland, and carrying out graphic design in the planting process of the canna and the calamus;
e. and d, after the step d is finished, releasing the treated water into the artificial wetland.
In a preferred embodiment of the present invention, in the step a, sodium sulfide is added to the first treatment tank and mixed, the mixing time is 30min, and the rotation speed during mixing is 600 r/min.
In a preferred embodiment of the present invention, in the step b, the organic matter treating agent is added to the second treating tank and mixed for 20min, and the organic matter treating agent includes activated sludge, lime, potassium dichromate, EDTA, aluminum sulfate and activated carbon.
In a preferred embodiment of the present invention, a proper amount of cryophytes is added to the treated sewage in the step c and mixed, wherein the strain of the cryophytes is cultured, separated and screened from the bottom sludge of the artificial wetland in the south-four lakes in winter, and the strain is pseudomonas flavicans.
In a preferred embodiment of the present invention, the culturing of the cryopreserved comprises:
s1, firstly, putting natural water into an aerobic tank, putting a proper amount of bacterial strains into the aerobic tank per cubic meter, activating in a stuffy aeration mode, keeping the dissolved oxygen concentration above 6mg/L, and properly feeding water according to the biological conditions in the aerobic tank;
s2, after culturing for 3 days, adding a proper amount of strains into an aerobic tank per cubic meter, simultaneously supplementing a proper amount of nitrogen source, and continuously performing closed aeration for 5 days under the condition of maintaining the dissolved oxygen concentration to be more than 6 mg/L;
and S3, adding a photosynthetic bacteria stock solution into the aerobic tank, adding a proper amount of photosynthetic bacteria stock solution into the aerobic tank in the final stage, diluting the photosynthetic bacteria stock solution, and then putting the diluted photosynthetic bacteria stock solution to obtain the low-temperature bacteria solution.
As a preferred embodiment of the present invention, in S3, a proper amount of raw photosynthetic bacteria solution is added into the aerobic tank, and the ratio of the raw photosynthetic bacteria solution to water is 1: 6.
in a preferred embodiment of the present invention, the step d plants a proper amount of canna and acorus calamus into the artificial wetland, and before planting, the canna and acorus calamus are uniformly sprinkled into the artificial wetland by using hydrated lime powder to draw a planted pattern, and then the canna and acorus calamus are planted in a matching manner, wherein the designed pattern is a taiji pattern.
In a preferred embodiment of the present invention, the treated water is discharged into the constructed wetland in the step e, and the position of the discharged water is first shielded by a shielding frame when the water is discharged.
Compared with the prior art, the invention has the following beneficial effects:
the invention can effectively remove various pollutants in sewage, increases the range in the sewage treatment process, enables the whole artificial wetland to operate in a balanced way by cooperating with microorganisms, substrates, water bodies and plants, improves the pollution elimination thoroughness of the artificial wetland in the sewage, enables the plants in the artificial wetland to absorb and utilize nutrient substances in the sewage to the maximum extent, and can absorb and enrich toxic and harmful substances in part of the water bodies.
Detailed Description
Technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
A method for treating tail water of a sewage treatment plant by adopting an artificial wetland comprises the following treatment steps:
a. firstly, pumping the sewage in the artificial wetland, conveying the pumped sewage into a first treatment tank, adding sodium sulfide into the first treatment tank, mixing for 30min at a rotating speed of 600r/min, wherein the ratio of the sodium sulfide to the sewage is 1: 7;
b. after the step a is finished, conveying the treated sewage into a second treatment tank, adding an organic matter treatment agent into the second treatment tank, and mixing for 20min, wherein the ratio of the organic matter treatment agent to the sewage is 1:5, the components of the organic matter treating agent comprise activated sludge, lime, potassium dichromate, EDTA, aluminum sulfate and activated carbon;
c. after the step b is finished, adding a proper amount of low-temperature bacteria into the treated sewage, and mixing for 15min at the rotating speed of 450r/min, wherein the ratio of the low-temperature bacteria to the sewage is 1: 6, the strain of the low-temperature bacterium is cultured, separated and screened from the bottom mud of the artificial wetland in the south-four lakes in winter, and the strain adopts pseudomonas flava;
d. c, after the step c is finished, planting a proper amount of canna and calamus in the artificial wetland, uniformly spraying slaked lime powder in the artificial wetland before planting so as to draw a planted graph, then planting canna and calamus in a matching way, and carrying out graph design in the planting process of canna and calamus, wherein the designed graph is a taiji diagram;
e. and d, after the step d is finished, releasing the treated water into the artificial wetland, and shielding the water discharging position by using a shielding frame when the water is released.
Example two
A method for treating tail water of a sewage treatment plant by adopting an artificial wetland comprises the following treatment steps:
a. firstly, pumping the sewage in the artificial wetland, conveying the pumped sewage into a first treatment tank, adding sodium sulfide into the first treatment tank, mixing for 30min at a rotation speed of 600r/min, wherein the ratio of the sodium sulfide to the sewage is 1: 5;
b. after the step a is finished, conveying the treated sewage into a second treatment tank, adding an organic matter treatment agent into the second treatment tank, and mixing for 20min, wherein the ratio of the organic matter treatment agent to the sewage is 1: 3, the components of the organic matter treating agent comprise activated sludge, lime, potassium dichromate, EDTA, aluminum sulfate and activated carbon;
c. after the step b is finished, adding a proper amount of low-temperature bacteria into the treated sewage, and mixing for 15min at the rotating speed of 450r/min, wherein the ratio of the low-temperature bacteria to the sewage is 1: 4, culturing, separating and screening a strain of the low-temperature bacteria from the bottom sludge of the artificial wetland in the south-four lakes in winter, wherein the strain is pseudomonas flavus;
d. c, after the step c is finished, planting a proper amount of canna and calamus in the artificial wetland, uniformly spraying slaked lime powder in the artificial wetland before planting so as to draw a planted graph, then planting canna and calamus in a matching way, and carrying out graph design in the planting process of canna and calamus, wherein the designed graph is a taiji diagram;
e. and d, after the step d is finished, releasing the treated water into the artificial wetland, and shielding the water discharging position by using a shielding frame when the water is released.
The traditional sewage treatment data parameters are as follows in table 1:
test items Organic matter content Content of N Heavy metal content pH value
Parameter index 4% 6% 8% 7.5—7.8
Example a wastewater treatment data parameters table 2 is as follows:
test items Organic matter content Content of N Heavy metal content pH value
Parameter index 3% 4% 5% 7.2—7.4
Example a wastewater treatment data parameters table 3 is as follows:
test items Organic matter content Content of N Heavy metal content pH value
Parameter index 1% 2% 3% 7.0—7.3
In summary, the data in tables 1, 2 and 3 are compared to obtain, so that the artificial wetland system can effectively remove various pollutants in sewage, increase the range in the sewage treatment process, ensure that the whole artificial wetland operates in a balanced manner by cooperating with microorganisms, substrates, water bodies and plants, improve the thoroughness of the artificial wetland in the removal of the pollution in the sewage, ensure that the plants in the artificial wetland can absorb and utilize nutrient substances in the sewage to the maximum extent, and simultaneously can absorb and enrich toxic and harmful substances in part of the water bodies.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A method for treating tail water of a sewage treatment plant by adopting an artificial wetland is characterized by comprising the following steps: the processing steps are as follows:
a. firstly, pumping out sewage in the artificial wetland, conveying the pumped-out sewage into a first treatment tank, and adding sodium sulfide into the first treatment tank for mixing, wherein the ratio of the sodium sulfide to the sewage is 1: 5;
b. after the step a is finished, conveying the treated sewage into a second treatment tank, adding an organic matter treatment agent into the second treatment tank, and mixing, wherein the ratio of the organic matter treatment agent to the sewage is 1: 3;
c. after the step b is finished, adding a proper amount of low-temperature bacteria into the treated sewage, and mixing for 15min at the rotating speed of 450r/min, wherein the ratio of the low-temperature bacteria to the sewage is 1: 4;
d. after the step c is finished, planting a proper amount of canna and calamus into the artificial wetland, and carrying out graphic design in the planting process of the canna and the calamus;
e. and d, after the step d is finished, releasing the treated water into the artificial wetland.
2. The method for treating the tail water of the sewage treatment plant by adopting the artificial wetland according to claim 1, characterized in that: and b, adding sodium sulfide into the first treatment tank in the step a for mixing, wherein the mixing time is 30min, and the rotating speed during mixing is 600 r/min.
3. The method for treating the tail water of the sewage treatment plant by adopting the artificial wetland according to claim 1, characterized in that: and b, adding an organic matter treating agent into the second treating tank in the step b, and mixing for 20min, wherein the organic matter treating agent comprises the following components of activated sludge, lime, potassium dichromate, EDTA, aluminum sulfate and activated carbon.
4. The method for treating the tail water of the sewage treatment plant by adopting the artificial wetland according to claim 1, characterized in that: and c, adding a proper amount of low-temperature bacteria into the treated sewage for mixing, wherein the strains of the low-temperature bacteria are cultured, separated and screened from the bottom sludge of the artificial wetland in the south-four lakes in winter, and the strains adopt pseudomonas flavus.
5. The method for treating the tail water of the sewage treatment plant by adopting the artificial wetland according to claim 1, characterized in that: the culture steps of the low-temperature bacteria are as follows:
s1, firstly, putting natural water into an aerobic tank, putting a proper amount of bacterial strains into the aerobic tank per cubic meter, activating in a stuffy aeration mode, keeping the dissolved oxygen concentration above 6mg/L, and properly feeding water according to the biological conditions in the aerobic tank;
s2, after culturing for 3 days, adding a proper amount of strains into an aerobic tank per cubic meter, simultaneously supplementing a proper amount of nitrogen source, and continuously performing closed aeration for 5 days under the condition of maintaining the dissolved oxygen concentration to be more than 6 mg/L;
and S3, adding a photosynthetic bacteria stock solution into the aerobic tank, adding a proper amount of photosynthetic bacteria stock solution into the aerobic tank in the final stage, diluting the photosynthetic bacteria stock solution, and then putting the diluted photosynthetic bacteria stock solution to obtain the low-temperature bacteria solution.
6. The method for treating the tail water of the sewage treatment plant by adopting the artificial wetland according to claim 5, characterized in that: and in the step S3, adding a proper amount of photosynthetic bacteria stock solution into the aerobic tank, wherein the ratio of the photosynthetic bacteria stock solution to water is 1: 6.
7. the method for treating the tail water of the sewage treatment plant by adopting the artificial wetland according to claim 1, characterized in that: d, planting a proper amount of canna and calamus in the artificial wetland, uniformly spraying slaked lime powder in the artificial wetland before planting to draw a planted pattern, and then planting canna and calamus in a matching way, wherein the designed pattern is a Taiji pattern.
8. The method for treating the tail water of the sewage treatment plant by adopting the artificial wetland according to claim 1, characterized in that: and e, releasing the treated water into the artificial wetland, and shielding the water discharging position by using a shielding frame when the water is released.
CN202111465419.0A 2021-12-03 2021-12-03 Method for treating tail water of sewage treatment plant by adopting constructed wetland Pending CN114163074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111465419.0A CN114163074A (en) 2021-12-03 2021-12-03 Method for treating tail water of sewage treatment plant by adopting constructed wetland

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111465419.0A CN114163074A (en) 2021-12-03 2021-12-03 Method for treating tail water of sewage treatment plant by adopting constructed wetland

Publications (1)

Publication Number Publication Date
CN114163074A true CN114163074A (en) 2022-03-11

Family

ID=80482608

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111465419.0A Pending CN114163074A (en) 2021-12-03 2021-12-03 Method for treating tail water of sewage treatment plant by adopting constructed wetland

Country Status (1)

Country Link
CN (1) CN114163074A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102897980A (en) * 2012-10-31 2013-01-30 华北水利水电学院 Combined town sewage treatment constructed wetland system and town sewage treatment method
CN103964629A (en) * 2013-01-31 2014-08-06 衢州绿怡环保科技有限公司 Acid mine drainage OLWS method
CN105347498A (en) * 2015-11-25 2016-02-24 常州大学 Establishing, starting and stable running method for tail water deep purification wetland
CN105417699A (en) * 2015-11-25 2016-03-23 常州大学 Vertical flow artificial wetland ecological degradation method for tail water of urban sewage treatment plant
CN106542640A (en) * 2016-12-07 2017-03-29 重庆文理学院 Based on Canna generalis Bailey and the leather waste water processing method of artificial swamp Radix Ophiopogonis
CN107555608A (en) * 2017-08-29 2018-01-09 暨南大学 A kind of strengthened artificial wet land removes the method and system of water body Microcystis aeruginosa and toxin
CN108928911A (en) * 2018-06-25 2018-12-04 赛恩斯环保股份有限公司 A method of the degradation beneficiation wastewater COD based on sulphur flora
CN111606509A (en) * 2020-05-20 2020-09-01 苏州首创嘉净环保科技股份有限公司 Low-temperature bacterium proportioning culture method for sewage treatment
CN111689640A (en) * 2019-03-13 2020-09-22 北京北方宏拓环境科技有限公司 Sewage treatment method
CN112047486A (en) * 2020-09-20 2020-12-08 北京市新水季环境工程有限公司 Composite functional wetland combination process for treating drainage basin characteristic pollutants
CN113620540A (en) * 2021-09-06 2021-11-09 深圳市万科物业服务有限公司 Sewage treatment plant tail water treatment circulation system
CN113698047A (en) * 2021-09-23 2021-11-26 浙江省冶金研究院有限公司 Method for purifying rural domestic sewage by microorganism-enhanced artificial wetland

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102897980A (en) * 2012-10-31 2013-01-30 华北水利水电学院 Combined town sewage treatment constructed wetland system and town sewage treatment method
CN103964629A (en) * 2013-01-31 2014-08-06 衢州绿怡环保科技有限公司 Acid mine drainage OLWS method
CN105347498A (en) * 2015-11-25 2016-02-24 常州大学 Establishing, starting and stable running method for tail water deep purification wetland
CN105417699A (en) * 2015-11-25 2016-03-23 常州大学 Vertical flow artificial wetland ecological degradation method for tail water of urban sewage treatment plant
CN106542640A (en) * 2016-12-07 2017-03-29 重庆文理学院 Based on Canna generalis Bailey and the leather waste water processing method of artificial swamp Radix Ophiopogonis
CN107555608A (en) * 2017-08-29 2018-01-09 暨南大学 A kind of strengthened artificial wet land removes the method and system of water body Microcystis aeruginosa and toxin
CN108928911A (en) * 2018-06-25 2018-12-04 赛恩斯环保股份有限公司 A method of the degradation beneficiation wastewater COD based on sulphur flora
CN111689640A (en) * 2019-03-13 2020-09-22 北京北方宏拓环境科技有限公司 Sewage treatment method
CN111606509A (en) * 2020-05-20 2020-09-01 苏州首创嘉净环保科技股份有限公司 Low-temperature bacterium proportioning culture method for sewage treatment
CN112047486A (en) * 2020-09-20 2020-12-08 北京市新水季环境工程有限公司 Composite functional wetland combination process for treating drainage basin characteristic pollutants
CN113620540A (en) * 2021-09-06 2021-11-09 深圳市万科物业服务有限公司 Sewage treatment plant tail water treatment circulation system
CN113698047A (en) * 2021-09-23 2021-11-26 浙江省冶金研究院有限公司 Method for purifying rural domestic sewage by microorganism-enhanced artificial wetland

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
邓育红等: "《现代生活与化学技术》" *

Similar Documents

Publication Publication Date Title
CN101157510B (en) Process for treating waste water produced during biofermentation method for producing penicillin and intermediate 6-APA process
CN104129893B (en) Acetylbutyrylcellulose produces the processing method of waste water
CN108358379A (en) A kind of biological aerated filter for advanced treating antibiotics waste water
CN110002583A (en) It is a kind of using sanitary sewage as carbon source domestication can co -metabolic degradation 2,4,6- trichlorophenol microbial process
CN107032501B (en) Method and facility for simulating ecological purification of eutrophic river water
CN109081447B (en) Method for removing nitrogen and phosphorus in culture wastewater by combining chlorella, acinetobacter and pseudomonas
CN105858873A (en) Method for culturing aerobic granular sludge through high-concentration medicine wastewater
CN209367927U (en) A kind of high concentration organic nitrogen waste water dis posal equipment
CN111646578A (en) Method for removing nitrate in sewage through synergetic denitrification of iron autotrophic bacteria and heterotrophic bacteria
CN114163074A (en) Method for treating tail water of sewage treatment plant by adopting constructed wetland
CN108069570B (en) Method for removing carbon, nitrogen and phosphorus in aquaculture wastewater
CN111153551A (en) Municipal sewage treatment device and treatment process
CN207468401U (en) A kind of mark that carries is to the industrial waste water disposal device for being better than IV class water quality of earth's surface
CN110182967A (en) A kind of compound strain of microorganism for capableing of fast decoupled dirt water pollutant
CN105776750B (en) A kind of testing and measuring technology of the enzyme catalytic treatment landfill leachate of three-stage
Aung et al. Observational study of wastewater treatment by the use of microalgae
CN208857092U (en) A kind of organic wastewater treating system
CN105731658A (en) Biological enhancer for treating livestock and poultry breeding wastewater and preparation method thereof
CN108773911B (en) Treating agent for garbage penetrating fluid, preparation method and treatment process thereof
CN113264587A (en) Culture method of high-load efficient nitrifying bacteria
CN114045229A (en) Directional amplification method for bioremediation indigenous microorganisms of rivers and lakes and application
CN113526801A (en) Wood vinegar and biomass charcoal combined sewage treatment method
CN112811611A (en) Double-group B-BAF filter tank device and sewage denitrification treatment method
CN113045133A (en) System and method for treating livestock and poultry breeding wastewater by anaerobic fermentation coupled with microalgae organisms
CN112142254A (en) High-concentration nitrogen-containing leather sewage treatment method and device based on composite microbial inoculum

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: 20220311