CN111807526A - River channel treatment method - Google Patents
River channel treatment method Download PDFInfo
- Publication number
- CN111807526A CN111807526A CN202010711490.1A CN202010711490A CN111807526A CN 111807526 A CN111807526 A CN 111807526A CN 202010711490 A CN202010711490 A CN 202010711490A CN 111807526 A CN111807526 A CN 111807526A
- Authority
- CN
- China
- Prior art keywords
- bacteria
- water
- following
- steps
- facultative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
Abstract
The invention provides a river channel treatment method, which comprises aerobic bacteria adding, facultative bacteria adding and anaerobic bacteria adding; adding aerobic bacteria: activating before adding, adding the activated; the aerobic bacteria comprise: bacillus subtilis, bacillus licheniformis, bacillus pumilus and trichoderma viride. Adding facultative bacteria: placing the nano aeration biomembrane in a culture solution of facultative bacteria, culturing for 20-26 hours, and then putting into a water body to form a flora wall; installing a bacterium group wall every 100-200 meters; 30-40g of facultative bacteria are added into each cubic of water. The invention effectively treats the polluted river, reduces COD and ammonia nitrogen in the water body, reduces bottom mud, improves the transparency of the water body and solves the problem of serious water body pollution of the current urban river.
Description
Technical Field
The invention relates to a river channel treatment method, and belongs to the technical field of environmental microorganisms.
Background
The traditional river water body treatment usually adopts a chemical method, the investment is large, and the generated sludge can cause secondary pollution to the environment if the sludge is not treated properly. With the development of society and the enhancement of environmental protection consciousness of people, the microbial degradation mostly adopts a traditional activated sludge method, and the method has a small application range and great limitation.
Patent CN201910723497.2 discloses a method for microbial remediation applied to river section restoration, which comprises the following steps: s1: microbial liquid amplification, S2, microbial adsorption, S3: internal mounting and placing of the adsorption device, S4: microbial liquid spraying, S5: detection, S6: analyzing and adjusting; the screened complex microbial inoculum (comprising various strains, such as efficient heterotrophic nitrification and aerobic denitrification strains, Raoultella, pseudomonas, photosynthetic bacteria, bacillus and the like) is used as a bacterial source, and is sprayed in a river channel provided with an adsorption device after propagation, so that the overproof pollutants in the river water are purified.
The method for treating river pollution by microorganisms in the prior art has the following technical defects: for the seriously polluted river channel, the COD, ammonia nitrogen, bottom mud and water transparency of the water body are difficult to improve in a short time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a river channel treatment method and achieves the following aims: the microbial method is used for treating the river pollution problem, effectively treating the polluted river, reducing COD (chemical oxygen demand) and ammonia nitrogen in the water body, reducing bottom mud and improving the transparency of the water body, and solving the problem of serious water body pollution of the current urban river.
The technical scheme adopted by the invention is as follows:
the invention provides a river channel treatment method, which comprises the following steps:
1. strain addition
(1) Aerobic bacteria adding
Before adding the strains, the strains are activated for 24 hours in a plastic barrel by warm water at the temperature of 25-38 ℃, and the activated strains are uniformly sprayed on the surface of a water area to be treated by manual or mechanical equipment after the activation is finished. 40-50g of aerobic bacteria are added into each cubic of water.
The bacteria content of the aerobic bacteria is as follows: 3X 109CFU/g; the aerobic bacteria comprise: the bacillus subtilis, the bacillus licheniformis, the bacillus pumilus and the trichoderma viride have the bacterium content proportion of 20-35: 25-40: 20-30: 15-25.
(2) Facultative addition of facultative aerobe
The facultative bacteria adding mode is complex, and the strain adding mode is to establish a bacterial colony wall; according to the water area condition, a bacterial wall is installed every 100-200 meters, namely the carrier-nano aeration biomembrane is hung on the artificial floating island.
The nano aeration biomembrane is firstly placed in the culture solution of the facultative bacteria for 24 hours, and then is put into the water body. 30-40g of facultative bacteria are added into each cubic of water. The flora wall is placed at a position from 50 cm below the water surface to 50 cm above the water bottom, and the flora wall plays a role in attaching strains and cleaning water.
The facultative bacteria comprise the following bacteria in content: 2X 109CFU/g; the facultative bacteria comprise rhodopseudomonas palustris and saccharomyces cerevisiae, and the bacteria content ratio is 15-25: 20-30 parts of;
the nano aeration biomembrane can effectively improve the contact area of water and bubbles, and improve the oxygen mass transfer efficiency of aeration, when sewage flows around the aeration biomembrane, pollutants in the water enter the biomembrane under the actions of concentration driving, microbial adsorption and the like, and are utilized by microbes through biological metabolism and proliferation, so that the pollutants in the water are assimilated into microbial thalli which are fixed on the biomembrane or decomposed into inorganic metabolites, and the purification of the water is realized.
(3) Anaerobic bacteria adding
Placing the biochemical ball in a culture solution of anaerobic bacteria, and culturing for 24 hours; anaerobic bacteria are attached to the biochemical balls, then the biochemical balls with attached strains are added into a water area needing to be treated, the strains sink to the bottom of a river channel along with a carrier, and the strains are propagated to decompose pollutants. 5-8 biochemical balls are added into each cubic of water.
The biochemical ball is made of plastic, is spherical, has a plurality of bulges on the surface, contains biochemical cotton inside, and can be well attached to the biochemical cotton by anaerobic bacteria.
The content of the anaerobic bacteria is 2 multiplied by 109CFU/g comprises nitrifying bacteria, nitrosomonas bacteria and denitrifying bacteria, and the ratio of bacteria content is 20-25: 15-25: 20-30.
The facultative bacteria and the anaerobic bacteria can be added simultaneously or sequentially, and the adding is not in sequence.
2. Fast establishment period of flora
After the strains are added into the riverway to be treated, an unstable system consisting of a large number of beneficial floras is formed in the riverway, and the beneficial floras gradually adapt to the riverway system; according to the pollution condition of the river channel, the rapid establishment period of the flora can be completed in 3-10 days generally.
3. Period of stable treatment
After the flora is established, the beneficial bacteria begin to decompose pollutants on the whole longitudinal section of the river channel, and the river channel has fluidity, so that the river channel pollution cannot ensure enough steady-state conditions to maintain the total amount of the added flora, so that the flora has certain loss, and strains are supplemented in time under the conditions to maintain enough flora amount. After stabilization, the river ecological system is gradually established, a dynamic balance is formed, the stabilization period time can be determined by testing the indexes of the water inlet and the water outlet of the river, and the stabilization treatment period can be completed in 1-3 months.
4. Period of maintenance
The maintenance period is entered after the micro-ecological system of the river channel is established stably, in order to maintain the treatment effect of the river channel, the water quality rebound caused by the changes of water quality, water quantity, temperature and the like is avoided, the sampling detection is carried out on the river channel every 1-3 months, and the strains are supplemented in time to maintain the stable total amount of floras.
By adopting the technical scheme, the invention has the following beneficial effects:
the microbial method is used for treating the pollution problem of the river channel, effectively treating the polluted river channel and reducing COD, ammonia nitrogen, bottom mud and water transparency of the water body; before treatment, the COD value of the river is 100mg/L, the ammonia nitrogen content is 54mg/L, the thickness of the sediment is 0.8m, and the transparency is 20 cm; after five months of treatment, the COD value of the river channel is 30-32mg/L, the ammonia nitrogen content is 2-2.1mg/L, the thickness of the bottom mud is 0.26-0.28m, and the transparency is 58-60 cm.
Detailed Description
Example 1 river treatment method
The method comprises the following steps:
1. strain addition
(1) Aerobic bacteria adding
Before adding the strains, activating the strains for 24 hours in a plastic barrel by warm water at 25 ℃, and after the activation is finished, uniformly spraying the activated strains on the surface of a water area to be treated by manual or mechanical equipment. 50g of aerobic bacteria are added into each cubic of water.
The bacteria content of the aerobic bacteria is as follows: 3X 109CFU/g; the aerobic bacteria comprise: the bacillus subtilis, the bacillus licheniformis, the bacillus pumilus and the trichoderma viride have the bacterium content proportion of 20: 40: 25: 17.
(2) facultative addition of facultative aerobe
The facultative bacteria adding mode is complex, and the strain adding mode is to establish a bacterial colony wall; according to the water area condition, a bacterial wall is installed every 100 meters, namely a carrier-nano aeration biomembrane is hung on the artificial floating island.
The nano aeration biomembrane is firstly placed in the culture solution of the facultative bacteria for 24 hours, and then is put into the water body. 40g of facultative bacteria are added into each cubic of water. The flora wall is placed at a position from 50 cm below the water surface to 50 cm above the water bottom, and the flora wall plays a role in attaching strains and cleaning water.
The facultative bacteria comprise the following bacteria in content: 2X 109CFU/g; the facultative bacteria comprise rhodopseudomonas palustris and saccharomyces cerevisiae, and the bacteria content ratio is 25: 22;
the nano aeration biomembrane can effectively improve the contact area of water and bubbles, and improve the oxygen mass transfer efficiency of aeration, when sewage flows around the aeration biomembrane, pollutants in the water enter the biomembrane under the actions of concentration driving, microbial adsorption and the like, and are utilized by microbes through biological metabolism and proliferation, so that the pollutants in the water are assimilated into microbial thalli which are fixed on the biomembrane or decomposed into inorganic metabolites, and the purification of the water is realized.
(3) Anaerobic bacteria adding
Placing the biochemical ball in a culture solution of anaerobic bacteria, and culturing for 24 hours; anaerobic bacteria are attached to the biochemical balls, then the biochemical balls with attached strains are added into a water area needing to be treated, the strains sink to the bottom of a river channel along with a carrier, and the strains are propagated to decompose pollutants. 6 biochemical balls are added into each cubic of water.
The biochemical ball is made of plastic, is spherical, has a plurality of bulges on the surface, contains biochemical cotton inside, and can be well attached to the biochemical cotton by anaerobic bacteria.
The content of the anaerobic bacteria is 2 multiplied by 109CFU/g comprises nitrifying bacteria, nitrosomonas bacteria and denitrifying bacteria, and the ratio of bacteria content is 21: 25: 23.
the facultative bacteria and the anaerobic bacteria can be added simultaneously or sequentially, and the adding is not in sequence.
2. Fast establishment period of flora
After the strains are added into the riverway to be treated, an unstable system consisting of a large number of beneficial floras is formed in the riverway, and the beneficial floras gradually adapt to the riverway system; and finishing the rapid establishment period of the flora within 5-8 days according to the pollution condition of the river channel.
3. Period of stable treatment
After the flora is established, the beneficial bacteria begin to decompose pollutants on the whole longitudinal section of the river channel, and the river channel has fluidity, so that the river channel pollution cannot ensure enough steady-state conditions to maintain the total amount of the added flora, so that the flora has certain loss, and strains are supplemented in time under the conditions to maintain enough flora amount. Through stabilizing treatment, a river channel ecological system is gradually established, a dynamic balance is formed, the stabilizing period time can be determined through testing of indexes of water inlets and water outlets of the river channel, and the stabilizing treatment period can be completed within 2 months.
3. Period of maintenance
The maintenance period is entered after the micro-ecological system of the river channel is established stably, so that the treatment effect of the river channel is maintained, water quality rebound caused by changes of water quality, water quantity, temperature and the like is avoided, the river channel is sampled and detected once every 2 months, and strains are supplemented in time to maintain the stable total amount of floras.
Example 2 river treatment method
The method comprises the following steps:
1. strain addition
(1) Aerobic bacteria adding
Before adding the strains, the strains are activated for 24 hours in a plastic barrel by warm water at 35 ℃, and are uniformly sprayed on the surface of a water area to be treated by manual or mechanical equipment after the activation is finished. 45g of aerobic bacteria are added into each cubic of water.
The aerobic bacteriaThe content of the bacteria is as follows: 3X 109CFU/g; the aerobic bacteria comprise: the bacillus subtilis, the bacillus licheniformis, the bacillus pumilus and the trichoderma viride have the bacterium content proportion of 30: 35: 26: 19.
(2) facultative addition of facultative aerobe
The facultative bacteria adding mode is complex, and the strain adding mode is to establish a bacterial colony wall; according to the water area condition, a bacterial colony wall is arranged every 150 meters, namely a carrier-nano aeration biomembrane is suspended on the artificial floating island.
The nano aeration biomembrane is firstly placed in the culture solution of the facultative bacteria for 24 hours, and then is put into the water body. 33g of facultative bacteria are added into each cubic of water. The flora wall is placed at a position from 50 cm below the water surface to 50 cm above the water bottom, and the flora wall plays a role in attaching strains and cleaning water.
The facultative bacteria comprise the following bacteria in content: 2X 109CFU/g; the facultative bacteria comprise rhodopseudomonas palustris and saccharomyces cerevisiae, and the bacteria content ratio is 15: 23;
the nano aeration biomembrane can effectively improve the contact area of water and bubbles, and improve the oxygen mass transfer efficiency of aeration, when sewage flows around the aeration biomembrane, pollutants in the water enter the biomembrane under the actions of concentration driving, microbial adsorption and the like, and are utilized by microbes through biological metabolism and proliferation, so that the pollutants in the water are assimilated into microbial thalli which are fixed on the biomembrane or decomposed into inorganic metabolites, and the purification of the water is realized.
(3) Anaerobic bacteria adding
Placing the biochemical ball in a culture solution of anaerobic bacteria, and culturing for 24 hours; anaerobic bacteria are attached to the biochemical balls, then the biochemical balls with attached strains are added into a water area needing to be treated, the strains sink to the bottom of a river channel along with a carrier, and the strains are propagated to decompose pollutants. 5 biochemical balls are added into each cubic of water.
The biochemical ball is made of plastic, is spherical, has a plurality of bulges on the surface, contains biochemical cotton inside, and can be well attached to the biochemical cotton by anaerobic bacteria.
The content of the anaerobic bacteria is 2 multiplied by 109CFU/g, including nitrofineBacteria, nitrosomonas bacteria and denitrifying bacteria, wherein the ratio of the bacteria content is 25: 15: 27.
the facultative bacteria and the anaerobic bacteria can be added simultaneously or sequentially, and the adding is not in sequence.
2. Fast establishment period of flora
After the strains are added into the riverway to be treated, an unstable system consisting of a large number of beneficial floras is formed in the riverway, and the beneficial floras gradually adapt to the riverway system; and finishing the rapid establishment period of the flora in 7-10 days according to the pollution condition of the river channel.
3. Period of stable treatment
After the flora is established, the beneficial bacteria begin to decompose pollutants on the whole longitudinal section of the river channel, and the river channel has fluidity, so that the river channel pollution cannot ensure enough steady-state conditions to maintain the total amount of the added flora, so that the flora has certain loss, and strains are supplemented in time under the conditions to maintain enough flora amount. Through stabilizing treatment, a river channel ecological system is gradually established, a dynamic balance is formed, the stabilizing period time can be determined through testing of indexes of water inlets and water outlets of the river channel, and the stabilizing treatment period can be completed in 3 months.
3. Period of maintenance
The maintenance period is entered after the micro-ecological system of the river channel is established stably, so that the treatment effect of the river channel is maintained, water quality rebound caused by changes of water quality, water quantity, temperature and the like is avoided, the river channel is sampled and detected once every 1 month, and strains are supplemented in time to maintain the stable total amount of floras.
The river channel treatment method of example 1-2 is adopted to treat a polluted river channel, and after detection and five-month treatment, the change of river channel detection indexes is shown in table 1;
TABLE 1
The transparency is the visible depth of river water.
As can be seen from Table 1, the COD value of the river channel before treatment is 100mg/L, the ammonia nitrogen content is 54mg/L, the thickness of the sediment is 0.8m, and the transparency is 20 cm; after five months of treatment, the COD value of the river channel is 30-32mg/L, the ammonia nitrogen content is 2-2.1mg/L, the thickness of the bottom mud is 0.26-0.28m, and the transparency is 58-60 cm.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A river channel treatment method is characterized in that: comprises the steps of adding aerobic bacteria; activating before adding, adding the activated; the aerobic bacteria comprise: bacillus subtilis, bacillus licheniformis, bacillus pumilus and trichoderma viride.
2. The method of claim 1, wherein the method comprises the following steps:
the bacteria content of the aerobic bacteria is as follows: 2.5-3.5X 109CFU/g; the aerobic bacteria comprise the following components in percentage by weight: the bacillus subtilis, the bacillus licheniformis, the bacillus pumilus and the trichoderma viride have the bacterium content proportion of 20-35: 25-40: 20-30: 15-25.
3. The method of claim 1, wherein the method comprises the following steps: the activation: the activation temperature is 25-38 deg.C, and the activation time is 22-24 hr.
4. The method of claim 1, wherein the method comprises the following steps: the method also comprises the following steps of adding facultative aerobes: placing the nano aeration biomembrane in a culture solution of facultative bacteria, culturing for 20-26 hours, and then putting into a water body to form a flora wall; installing a bacterium group wall every 100-200 meters; 30-40g of facultative bacteria are added into each cubic of water.
5. The method of claim 4, wherein the method comprises the following steps: the flora wall is placed from 50 centimeters below the water surface to 50 centimeters above the water bottom.
6. The method of claim 4, wherein the method comprises the following steps:
the facultative bacteria comprise the following bacteria in content: 1.5-2.5X 109CFU/gram.
7. The method of claim 4, wherein the method comprises the following steps:
the facultative bacteria comprise rhodopseudomonas palustris and saccharomyces cerevisiae, and the bacteria content ratio is 15-25: 20-30.
8. The method of claim 1, wherein the method comprises the following steps: the method also comprises the following steps of anaerobic bacteria addition: placing the biochemical ball in a culture solution of anaerobic bacteria, and culturing for 20-25 hours; then adding the biochemical balls attached with the strains into a water area needing to be treated, and adding 5-8 biochemical balls into each cubic of water.
9. The method of claim 8, wherein the method comprises: the content of the anaerobic bacteria is 2 multiplied by 109CFU/gram.
10. The method of claim 8, wherein the method comprises: the anaerobic bacteria: comprises nitrobacteria, nitrosomonas and denitrifying bacteria, and the ratio of the bacteria content is 20-25: 15-25: 20-30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010711490.1A CN111807526B (en) | 2020-07-22 | 2020-07-22 | River channel treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010711490.1A CN111807526B (en) | 2020-07-22 | 2020-07-22 | River channel treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111807526A true CN111807526A (en) | 2020-10-23 |
| CN111807526B CN111807526B (en) | 2022-10-21 |
Family
ID=72861930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010711490.1A Active CN111807526B (en) | 2020-07-22 | 2020-07-22 | River channel treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111807526B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113185072A (en) * | 2021-04-30 | 2021-07-30 | 江苏若焱环境设计有限公司 | River channel ecological restoration method |
| CN114105314A (en) * | 2021-12-09 | 2022-03-01 | 苏州中晟环境修复有限公司 | Water environment restoration material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106830365A (en) * | 2017-03-07 | 2017-06-13 | 天津大学 | A kind of biology is removed contamination water quality purification method |
| KR101993762B1 (en) * | 2018-08-07 | 2019-07-01 | 주식회사 건영이앤씨 | Liquefied deodorant and fabricating method thereof |
| CN110683655A (en) * | 2019-09-09 | 2020-01-14 | 河南林泉环保科技有限公司 | Underwater bacterium distribution process for eliminating black and odorous river channel |
-
2020
- 2020-07-22 CN CN202010711490.1A patent/CN111807526B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106830365A (en) * | 2017-03-07 | 2017-06-13 | 天津大学 | A kind of biology is removed contamination water quality purification method |
| KR101993762B1 (en) * | 2018-08-07 | 2019-07-01 | 주식회사 건영이앤씨 | Liquefied deodorant and fabricating method thereof |
| CN110683655A (en) * | 2019-09-09 | 2020-01-14 | 河南林泉环保科技有限公司 | Underwater bacterium distribution process for eliminating black and odorous river channel |
Non-Patent Citations (1)
| Title |
|---|
| 周正立: "《污水处理剂与污水监测技术》", 31 March 2007, 中国建材工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113185072A (en) * | 2021-04-30 | 2021-07-30 | 江苏若焱环境设计有限公司 | River channel ecological restoration method |
| CN114105314A (en) * | 2021-12-09 | 2022-03-01 | 苏州中晟环境修复有限公司 | Water environment restoration material and preparation method thereof |
| CN114105314B (en) * | 2021-12-09 | 2023-12-15 | 苏州中晟环境修复有限公司 | Water environment restoration material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111807526B (en) | 2022-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107201325B (en) | Pseudomonas strain and culture method and application thereof | |
| CN104673738B (en) | A kind of domestication of heterotrophic nitrification aerobic denitrifying bacteria and screening technique | |
| CN103074277B (en) | Denitrifying bacterium and application thereof | |
| CN108034624B (en) | Biological agent for treating high-concentration ammonia nitrogen wastewater and preparation method thereof | |
| CN108675464B (en) | Method for removing trace heavy metals and trace F-53B in electroplating wastewater treatment effluent | |
| CN111807526B (en) | River channel treatment method | |
| CN111689587A (en) | Method for treating river channel through microbial integrated ecological restoration and application of method | |
| CN107164276B (en) | Zinc ion toxicity-resistant pseudomonas aeruginosa and application thereof | |
| Ma et al. | Effect of periodic temperature shock on nitrogen removal performance and microbial community structure in plug-flow microaerobic sludge blanket | |
| CN102776140B (en) | Cold-tolerant pseudomonas strain Den-05, and screening method and application thereof | |
| Cui et al. | Improvement of nitrification efficiency by bioaugmentation in sequencing batch reactors at low temperature | |
| CN112266885A (en) | Heterotrophic nitrification aerobic denitrifying bacterium Y16 and application thereof | |
| CN113151063B (en) | Citrobacter freundii AS11 and application thereof in sewage treatment | |
| CN108102943B (en) | Denitrifying microorganism and application thereof | |
| CN107189974B (en) | Low-temperature denitrification bacterium for poor nutrition and application thereof | |
| CN113215027B (en) | Alcaligenes aquaticum AS1 and application thereof in sewage treatment | |
| Zhang et al. | Biological treatment of printing ink wastewater | |
| CN114262679A (en) | Autotrophic denitrifying bacteria and rapid propagation process thereof | |
| CN113403221A (en) | Method for culturing water body purifying indigenous microorganism composite microbial inoculum | |
| Yuguang et al. | Achieving advanced nitrogen and phosphorus removal based on denitrifying phosphorus removal and partial denitrification Anammox process | |
| Wang et al. | Nitrifier augmentation for high ammonia nitrogen removal by aerobic granular sludge at low temperatures | |
| Wei et al. | Studies on influencing factors of heterotrophic nitrifying bacteria treating black and odorous water bodies | |
| CN112939238B (en) | Microecological preparation for efficiently removing COD (chemical oxygen demand) in domestic sewage | |
| CN112744929B (en) | Application of bacillus subtilis SZG-JD-001 in preparation of biological composite carbon source | |
| Siyu et al. | Research advances of microbial denitrification and application in black and odorous water |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Method of River Regulation Effective date of registration: 20230316 Granted publication date: 20221021 Pledgee: Weifang rural commercial bank Limited by Share Ltd. hi tech sub branch Pledgor: SHANDONG SUKAHAN BIO-TECHNOLOGY Co.,Ltd. Registration number: Y2023980034955 |