CN111170472A - Method for purifying river channel by using gallery propagation bacteria - Google Patents
Method for purifying river channel by using gallery propagation bacteria Download PDFInfo
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- CN111170472A CN111170472A CN202010050372.0A CN202010050372A CN111170472A CN 111170472 A CN111170472 A CN 111170472A CN 202010050372 A CN202010050372 A CN 202010050372A CN 111170472 A CN111170472 A CN 111170472A
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- gallery
- river channel
- corridor
- purifying
- bacteria agent
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- 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
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- 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
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- 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
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- 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)
- Treatment Of Biological Wastes In General (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a method for purifying a river channel by using a gallery propagation bacteria agent, which mainly comprises the following steps: 1) inoculating high-concentration domesticated indigenous microorganisms in the corridor; 2) disturbing the sediment to the overlying water body in a stirring or aeration mode to provide required substances including indigenous microorganism sources, nitrogen sources and trace elements for the corridor; 3) adding a substance for promoting the growth of microorganisms; 4) and introducing the treated water in the gallery into the river channel to improve the water quality of the river channel. The invention can enable the gallery to have extremely high pollution removal capacity, the black and odorous bottom mud deposited in the gallery after treatment can be quickly converted into a brown yellow state of river mud, the effects of eliminating black and odorous bottom mud in situ, reducing the amount and increasing the pollution removal rate are realized, the water treated in the gallery is introduced into the river channel, the water quality of the river channel can be greatly improved, and the invention is particularly suitable for treating a flowing river channel, thereby effectively solving the problems that the continuous deposition of the bottom mud in the gallery in the prior art influences the water quality of the gallery and increases the dredging burden.
Description
Technical Field
The invention relates to a method for purifying a river channel by using a gallery propagation bacteria agent.
Background
At present, urban surface runoff in the center of Shanghai city adopts a forced drainage mode, and is drained into a receiving river channel by a pump station, so that the river channel is black and smelly in stages. In order to ensure the improvement effect of the water quality of the received river channel, measures such as excavating and intercepting facility potential, promoting rain and sewage mixed grafting and reconstruction, increasing the ecological restoration strength of the river channel and the like are generally used in China.
The high-flux ecological purification corridor can effectively control the pipeline bottom sediment in the corridor range when people are released into the river, purify the pipeline bottom sediment after the river release is finished, and improve the quality of pump station overflow sewage in fine days. The device is usually arranged in a river channel outside a pump station discharge port, and mainly comprises a flexible high-flux non-blocking purification barrier system, a liftable microporous aeration system, a high-efficiency biological purification system, a surface covering and ecological landscape system, an impact-resistant and fixing system and the like. Wherein, the barrier system mainly sets up the purification barrier of certain area in the river course of discharge port, and the main objective is the pipeline bed mud that the interception pump station brought out, prevents that the bed mud from causing the pollution to the river course. If the barrier is not arranged, the sludge in the initial stage of river discharge flows out like ink, and after the river discharge is finished, the bottom sludge continuously bubbles and floats upwards to form a cluster of black sludge on the surface of the river channel, so that pollutants are discharged to the river channel in a large amount, oxygen is consumed in the bottom sludge in a large amount, and the bottom sludge is caused by anaerobic property. At present, the increasingly serious bottom sludge pollution at home and abroad needs to consume a large amount of manpower and material resources except for dredging, sludge washing and rear-end treatment.
The phenomenon of sense organ blackness and odor can be reduced through the purification barrier system, and the sludge is intercepted in the corridor treatment range and is slowly treated. In the long term, however, because some pump stations have large or frequent river discharge, a large amount of black and odorous sludge is easily accumulated in the corridor, the height of the black and odorous sludge is even more than two meters, if the black and odorous sludge is degraded by an ecosystem, the time is long, the effect is reduced slowly, if chemical agents are not used, only the surface layer bottom sludge is treated and oxidized, the lower layer bottom sludge still keeps a black and odorous state, and if the river is continuously discharged, the black and odorous sludge is continuously generated, so that the influence on the water quality of the corridor is great, ammonia nitrogen can be continuously released to the overlying water body, and the dredging burden is increased.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, the bottom sediment of a pipeline continuously deposits to influence the water quality of a gallery and increase the dredging burden.
The technical scheme of the invention is as follows: a method for purifying a river channel by using a gallery propagation bacteria agent mainly comprises the following steps: 1) inoculating high-concentration domesticated indigenous microorganisms in the corridor; 2) disturbing the sediment to the overlying water body in a stirring or aeration mode to provide required substances including indigenous microorganism sources, nitrogen sources and trace elements for the corridor; 3) adding a substance for promoting the growth of microorganisms; 4) and introducing the treated water in the gallery into the river channel to improve the water quality of the river channel.
Further, in the invention, the step 1) is specifically to inoculate 3-50L/(m) of the seeds in the gallery3D) domesticating indigenous microorganisms at high concentration.
Further, in the invention, the bacterial load of the indigenous microorganism enrichment bacteria in the step 1) is 10^ 7-10 ^13 CFU.
Further, in the invention, the disturbance of the sediment deposition in the step 2) adopts a submersible water impeller.
Further, in the invention, the step 2) further comprises moving the submersible flow driver to fully and uniformly disturb the deposited bottom mud to the overlying water body.
Further, in the invention, the corridor is an interception corridor or a special culture corridor, and the culture corridor is a microorganism culture corridor with an interception function.
Further, in the present invention, the growth promoting substances added in step 3) include nutrients required for the growth of microorganisms.
Further, in the present invention, the nutrient includes one or more of a carbon source, an enzyme, an organic acid, a buffer, a cytokinin, a vitamin, and a trace element.
Further, in the invention, in the step 4), water in the gallery is pumped into the river channel through air stripping or a water pump.
Compared with the prior art, the invention has the following advantages:
1) in the invention, considering that the contents of carbon source, nitrogen source and microorganism in the sediment of the river are all extremely high, if the sediment can be fully utilized, the corridor can be changed into a secondary culture pond, the resource consumption is extremely low, and basic microorganisms and nutrients can deposit the sediment per se by using the corridor, the invention disturbs the deposited sediment to an overlying water body, is supplemented with inoculating high-concentration domesticated indigenous microorganism strains, carbon source and other nutrients, realizes secondary enrichment culture of the indigenous microorganisms in the corridor, greatly improves the biomass microorganism in the corridor, thereby has miraculous decay and makes the corridor per se have extremely high pollution removal capability, the treated black and odorous sediment in the corridor can be quickly converted into the brown yellow state of river mud, the effects of eliminating the black and odorous sediment in situ, reducing the quantity and increasing the pollution removal rate are realized, and the water quality of the river can be greatly improved by introducing the treated water in the corridor into the river, is particularly suitable for the treatment of the flowing river channel, thereby effectively solving the problems that the continuous sedimentation of the pipeline bottom mud influences the water quality of the gallery and increases the dredging burden in the prior art.
2) According to the invention, the gallery sediment can be fully and uniformly disturbed to the overlying water body by moving the submersible water impeller, so that the full reaction is ensured, and the treatment effect is improved.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Example (b):
referring to fig. 1, a specific embodiment of the method for purifying a river channel by using a gallery culture expanding agent of the present invention is shown, and the method mainly comprises:
step 1): inoculating 3-50L/(m) in the corridor3D) domesticating indigenous microorganisms at high concentration, wherein the bacterial load of the indigenous microorganism enrichment bacteria is 10^ 7-10 ^13 CFU. In this example, the inoculation is specifically 5L/(m) in the corridor3D) high concentration domesticated indigenous microorganisms with a bacterial population of 10^8 CFU.
Step 2): stirring or aerating to disturb the sediment to the overlying water body, and providing required substances including indigenous microorganism sources, nitrogen sources and trace elements for the corridor.
Wherein, sediment bottom mud at the bottom of the gallery can be stirred and disturbed by a submersible water impeller, or other underwater aeration devices can be adopted.
In this embodiment, specifically for stir and the disturbance through dive impeller, remove dive impeller through artifical manual or automatic mode simultaneously and make sediment bed mud can fully and evenly disturb to overlying water.
Step 3): adding a substance for promoting the growth of the microorganism. The growth promoting substances added include nutrients required for the growth of the microorganisms, and the nutrients may include one or more of carbon sources, enzymes, organic acids, buffers, cytokinins, vitamins, and trace elements. In the embodiment, 5-100 g/L of sodium acetate carbon source can be added, specifically 50g/L of sodium acetate carbon source is added.
In this example, the turbidity of the cultivated gallery was about 200NTU, ATP was about 8000RLUs, and the contaminant removal rate was 5mg/(L × d), all of which were significantly improved.
Step 4): and pumping the treated water in the gallery into the river channel through air stripping or a water pump, so as to improve the water quality of the river channel.
In addition, in this embodiment, the corridor may be an interception corridor or a special culture corridor, the culture corridor is a microorganism culture corridor with an interception function, and microorganisms are expanded and cultured in the culture corridor.
In the invention, considering that the contents of carbon source, nitrogen source and microorganism in the sediment of the river are all extremely high, if the sediment can be fully utilized, the corridor can be changed into a secondary culture pond, the resource consumption is extremely low, and basic microorganisms and nutrients can deposit the sediment per se by using the corridor, the invention disturbs the deposited sediment to an overlying water body, is supplemented with inoculating high-concentration domesticated indigenous microorganism strains, carbon source and other nutrients, realizes secondary enrichment culture of the indigenous microorganisms in the corridor, greatly improves the biomass microorganism in the corridor, thereby has miraculous decay and makes the corridor per se have extremely high pollution removal capability, the treated black and odorous sediment in the corridor can be quickly converted into the brown yellow state of river mud, the effects of eliminating the black and odorous sediment in situ, reducing the quantity and increasing the pollution removal rate are realized, and the water quality of the river can be greatly improved by introducing the treated water in the corridor into the river, is particularly suitable for the treatment of the flowing river channel, thereby effectively solving the problems that the continuous sedimentation of the pipeline bottom mud influences the water quality of the gallery and increases the dredging burden in the prior art.
In addition, make the motion of dive impeller through manual or automatic mode, can be fully and evenly with corridor deposit bed mud disturbance to overlying water, guarantee the abundant of reaction, promote the treatment effect.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.
Claims (9)
1. A method for purifying a river channel by using a gallery propagation bacteria agent is characterized by mainly comprising the following steps:
1) inoculating high-concentration domesticated indigenous microorganisms in the corridor;
2) disturbing the sediment to the overlying water body in a stirring or aeration mode to provide required substances including indigenous microorganism sources, nitrogen sources and trace elements for the corridor;
3) adding a substance for promoting the growth of microorganisms;
4) and introducing the treated water in the gallery into the river channel to improve the water quality of the river channel.
2. The method for purifying the river channel by using the gallery propagation bacteria agent as claimed in claim 1, wherein the method comprises the following steps: in the step 1), inoculating 3-50L/(m) in the corridor3D) domesticating indigenous microorganisms at high concentration.
3. The method for purifying the river channel by using the gallery propagation bacteria agent as claimed in claim 2, wherein: the bacterial load of the indigenous microorganism enrichment bacteria in the step 1) is 10^7 to 10^13 CFU.
4. The method for purifying the river channel by using the gallery propagation bacteria agent as claimed in claim 1, wherein the method comprises the following steps: and 2) disturbing the sediment in the step 2) by adopting a submersible water impeller.
5. The method for purifying the river channel by using the gallery propagation bacteria agent as claimed in claim 4, wherein the method comprises the following steps: and step 2) moving the submersible water impeller to fully and uniformly disturb the deposited bottom mud to the overlying water body.
6. The method for purifying the river channel by using the gallery propagation bacteria agent as claimed in claim 1, wherein the method comprises the following steps: the corridor is an interception corridor or a special culture corridor, and the culture corridor is a microorganism culture corridor with an interception function.
7. The method for purifying the river channel by using the gallery propagation bacteria agent as claimed in claim 1, wherein the method comprises the following steps: the growth promoting substances added in the step 3) comprise nutrient substances required by the growth of the microorganisms.
8. The method for purifying the river channel by using the gallery propagation bacteria agent as claimed in claim 7, wherein: the nutrient comprises one or more of carbon source, enzyme, organic acid, buffer, cytokinin, vitamin and trace element.
9. The method for purifying the river channel by using the gallery propagation bacteria agent as claimed in claim 1, wherein the method comprises the following steps: and 4), pumping the water in the gallery into the river channel through air stripping or a water pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010050372.0A CN111170472A (en) | 2020-01-17 | 2020-01-17 | Method for purifying river channel by using gallery propagation bacteria |
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| CN202010050372.0A CN111170472A (en) | 2020-01-17 | 2020-01-17 | Method for purifying river channel by using gallery propagation bacteria |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896394A (en) * | 2021-10-18 | 2022-01-07 | 珠江水利委员会珠江水利科学研究院 | Urban river and lake water ecological restoration method based on 'first mud and then water' new restoration mode |
Citations (5)
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| KR900009455A (en) * | 1988-12-01 | 1990-07-04 | 교와콘크리이트 고교 가부시기가이샤 | Purification device |
| CN101215044A (en) * | 2007-12-26 | 2008-07-09 | 天津创业环保股份有限公司 | Multistage circulation composite sewage treatment method |
| 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 |
| CN108609720A (en) * | 2018-04-03 | 2018-10-02 | 浙江亿康环保工程有限公司 | A kind of Drain contamination for river channel mouth situ waste water repair system and method |
| US20210171379A1 (en) * | 2017-12-13 | 2021-06-10 | Chinese Research Academy Of Environmental Sciences | Method and device for preventing and controlling pollutants in basin water resource utilization |
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2020
- 2020-01-17 CN CN202010050372.0A patent/CN111170472A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR900009455A (en) * | 1988-12-01 | 1990-07-04 | 교와콘크리이트 고교 가부시기가이샤 | Purification device |
| CN101215044A (en) * | 2007-12-26 | 2008-07-09 | 天津创业环保股份有限公司 | Multistage circulation composite sewage treatment method |
| 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 |
| US20210171379A1 (en) * | 2017-12-13 | 2021-06-10 | Chinese Research Academy Of Environmental Sciences | Method and device for preventing and controlling pollutants in basin water resource utilization |
| CN108609720A (en) * | 2018-04-03 | 2018-10-02 | 浙江亿康环保工程有限公司 | A kind of Drain contamination for river channel mouth situ waste water repair system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896394A (en) * | 2021-10-18 | 2022-01-07 | 珠江水利委员会珠江水利科学研究院 | Urban river and lake water ecological restoration method based on 'first mud and then water' new restoration mode |
| CN113896394B (en) * | 2021-10-18 | 2022-08-05 | 珠江水利委员会珠江水利科学研究院 | Urban river and lake water ecological restoration method based on 'first mud and then water' new restoration mode |
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Application publication date: 20200519 |