CN112661265A - LBR landfill leachate biochemical device - Google Patents
LBR landfill leachate biochemical device Download PDFInfo
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- CN112661265A CN112661265A CN202011266932.2A CN202011266932A CN112661265A CN 112661265 A CN112661265 A CN 112661265A CN 202011266932 A CN202011266932 A CN 202011266932A CN 112661265 A CN112661265 A CN 112661265A
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Abstract
The LBR landfill leachate biochemical device consists of two or more tower reactors, and the adjacent tower reactors are connected through an air-water pipeline which baffls up and down. The tower reactors are all provided with a filler and an aeration mechanism. The first tower reactor is connected with a water inlet pipe and an aeration pipe, and one end of the aeration pipe extends into the tower reactor and is connected with an aeration mechanism. Defoaming spray head mechanisms are arranged in other tower reactors except the first tower reactor. The reactor is in a series combination mode, adopts a closed tank structure, is convenient for collecting tail gas and discharging the tail gas at high altitude, and can ensure the health and safety of staff in a sewage treatment plant; the treatment process is simple, the operation is convenient, the daily cost is low, and the effluent is stable; the facility energy consumption is low, and the facility energy consumption is suitable for the change of water quality and water quantity; on the premise of ensuring the treatment efficiency, the investment and the operating cost are saved as much as possible.
Description
Technical Field
The invention relates to the field of landfill leachate treatment, in particular to a landfill leachate biochemical device.
Background
With the rapid development of cities and the improvement of the living standard of residents, the generation amount of solid garbage is increased year by year, the solid garbage becomes a worldwide environmental pollution problem, the current disposal method is land landfill, but because the composition of landfill leachate is relatively complex, organic wastewater containing a large amount of carcinogenic and teratogenic compounds and heavy metals seriously pollutes underground water and surface drinking water sources and causes great harm to our bodies and environments in the body if the organic wastewater is not properly treated.
Disclosure of Invention
The invention aims to provide a device which is convenient for collecting tail gas and discharging the tail gas at high altitude, can ensure the health and safety of workers in a sewage treatment plant, and has the advantages of simple treatment process, convenient operation, low daily cost and stable effluent; the facility energy consumption is low, and the facility energy consumption is suitable for the change of water quality and water quantity; the LBR landfill leachate biochemical device can save investment and operating cost as far as possible on the premise of ensuring the treatment efficiency.
The invention mainly comprises a reactor, a defoaming nozzle mechanism, filler, an aeration mechanism, a water inlet pipe, an aeration pipe and an air-water pipe.
The LBR landfill leachate biochemical device consists of two or more tower reactors, and the adjacent tower reactors are connected through an air-water pipeline which baffls up and down. The tower reactors are all provided with a filler and an aeration mechanism. The first tower reactor is connected with a water inlet pipe and an aeration pipe, and one end of the aeration pipe extends into the tower reactor and is connected with an aeration mechanism. Defoaming spray head mechanisms are arranged in other tower reactors except the first tower reactor.
Preferably, the aeration mechanism comprises an aeration main pipe, an aeration head and aeration head pipes, one end of each aeration pipe is communicated with the aeration main pipe, the aeration main pipe is provided with a plurality of aeration head pipes, each aeration head pipe is connected with the aeration head, and the aeration main pipe is fixed on the inner wall of the tower reactor.
Preferably, defoaming shower nozzle mechanism includes that defoaming shower nozzle is responsible for and defoaming shower nozzle, and defoaming shower nozzle is responsible for and fixes on tower reactor inner wall, is equipped with a plurality of defoaming shower nozzles in the shower nozzle is responsible for, and the shower nozzle is responsible for and is linked together with the water intake pipe of arranging in tower reactor outside.
When the invention is used, the effluent of the anoxic LBR reactor automatically flows into the two-stage series aerobic LBR, firstly enters the first-stage tower reactor for the decarbonization of aerobic microorganisms, and then enters the multi-stage tower for the biological nitrification. The aerobic process adopts an LBR strengthening process, and the limited volume of a single-seat reactor is as follows: 2m 3. Volume load: 0.5kgCOD/m3.d, ammonia nitrogen removal load: 0.25kg NH3-N/m3. d. The aerobic tank utilizes an air compressor for aeration, and the required gas-water ratio is as follows: 30-50:1.
Meanwhile, the bottom of the LBR tower of the aerobic pool is provided with a water distribution and aeration system, the water outlet of the adjacent secondary reactor is provided with a nitrifying liquid reflux pump, the opening of a reflux valve is opened in due time according to the actual requirement of field operation, the aerobic water outlet part is refluxed into a preorder process (a middle water tank 1 #/an anoxic LBR reactor), and the setting is that firstly, when the water distribution is abnormal or toxic substances exceed the standard, the concentration of anaerobic biochemical and toxic substances is diluted and inhibited, and all indexes entering a biochemical system are controlled to meet the requirement. ② the total nitrogen removal effect can be improved by adjusting the reflux ratio, and the nitration alkalinity can be supplemented by denitrification. Reflux ratio control range: 800-1000 percent.
In order to meet the treatment effect of a biochemical system in the operation process, the pH value of the secondary aerobic inner tower wastewater needs to be controlled to be about 7-8, the temperature is about 25-30 ℃, the dissolved oxygen is controlled to be 2-4 mg/L, and the alkalinity of effluent (calculated as CaCO 3) is more than 150mg/L, so that the caustic soda liquid needs to be added into the aerobic influent, and the alkalinity of the effluent is ensured to be not less than 150 mg/L. The function is to remove most COD in the water and convert most ammonia nitrogen in the water into nitrate nitrogen.
Treatment efficiency of comprehensive wastewater pollutants by table recommendation process
Compared with the prior art, the invention has the following advantages:
1. the reactor is in a series combination mode, adopts a closed tank structure, is convenient for collecting tail gas and discharging the tail gas at high altitude, and can ensure the health and safety of staff in a sewage treatment plant;
2. the treatment process is simple, the operation is convenient, the daily cost is low, and the effluent is stable;
3. the facility energy consumption is low, and the facility energy consumption is suitable for the change of water quality and water quantity;
4. on the premise of ensuring the treatment efficiency, the investment and the operating cost are saved as much as possible.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the defoaming nozzle mechanism of the present invention;
FIG. 3 is a schematic top view of an aeration mechanism of the present invention;
in the figure, 1-tower reactor, 2-gas-water pipeline, 3-filler, 4-aeration pipe, 5-aeration main pipe, 6-aeration head pipe, 7-water inlet pipe, 8-defoaming nozzle main pipe, 9-defoaming nozzle and 10-aeration head.
Detailed Description
In the schematic diagrams of the invention shown in fig. 1 to 3, the LBR landfill leachate biochemical device consists of two or more tower reactors 1, and the adjacent tower reactors are connected by a gas-water pipeline 2 baffling up and down. The tower reactors are all provided with a filler 3 and an aeration mechanism. The aeration mechanism comprises an aeration main pipe, aeration heads and aeration head pipes, wherein one end of the aeration pipe 4 is communicated with the aeration main pipe 5, the aeration head pipes 6 are arranged on the aeration main pipe, each aeration head pipe is connected with the aeration head 10, and the aeration main pipe is fixed on the inner wall of the tower reactor. The first tower reactor is connected with the water inlet pipe 7 and the aeration pipe, and one end of the aeration pipe extends into the tower reactor and is connected with an aeration main pipe of the aeration mechanism. Defoaming spray head mechanisms are arranged in other tower reactors except the first tower reactor. Defoaming shower nozzle mechanism includes defoaming shower nozzle person in charge and defoaming shower nozzle, and defoaming shower nozzle is responsible for 8 and fixes on tower reactor inner wall, is equipped with defoaming shower nozzle 9 in the shower nozzle person in charge, and the shower nozzle is responsible for and is linked together with the outside inlet channel of arranging tower reactor in.
Claims (3)
- The biochemical device of LBR landfill leachate mainly comprises a reactor, a defoaming spray head mechanism, filler, an aeration mechanism, a water inlet pipe, an aeration pipe and an air-water pipe, and is characterized in that: LBR landfill leachate biochemical installation comprises two or more tower reactor, and the air water pipeline through upper and lower baffling links to each other between the adjacent tower reactor, all is equipped with filler and aeration mechanism in tower reactor, and first tower reactor links to each other with inlet tube, aeration pipe, and in the one end of aeration pipe extended to tower reactor, links to each other with aeration mechanism, all was equipped with defoaming shower nozzle mechanism in other tower reactor except that first tower reactor.
- 2. The LBR landfill leachate biochemical installation of claim 1, wherein: the aeration mechanism comprises an aeration main pipe, aeration heads and aeration head pipes, one end of each aeration pipe is communicated with the aeration main pipe, the aeration main pipe is provided with the aeration head pipe, each aeration head pipe is connected with the aeration head, and the aeration main pipe is fixed on the inner wall of the tower reactor.
- 3. The LBR landfill leachate biochemical installation of claim 1, wherein: the defoaming nozzle mechanism comprises a defoaming nozzle main pipe and a defoaming nozzle, the defoaming nozzle main pipe is fixed on the inner wall of the tower reactor, the defoaming nozzle is arranged on the nozzle main pipe, and the nozzle main pipe is communicated with a water inlet pipeline arranged outside the tower reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266932.2A CN112661265A (en) | 2020-11-13 | 2020-11-13 | LBR landfill leachate biochemical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266932.2A CN112661265A (en) | 2020-11-13 | 2020-11-13 | LBR landfill leachate biochemical device |
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| Publication Number | Publication Date |
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| CN112661265A true CN112661265A (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202011266932.2A Pending CN112661265A (en) | 2020-11-13 | 2020-11-13 | LBR landfill leachate biochemical device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116769590A (en) * | 2023-07-19 | 2023-09-19 | 西南科技大学 | LBR-anaerobic filter two-phase anaerobic digestion reactor |
-
2020
- 2020-11-13 CN CN202011266932.2A patent/CN112661265A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116769590A (en) * | 2023-07-19 | 2023-09-19 | 西南科技大学 | LBR-anaerobic filter two-phase anaerobic digestion reactor |
| CN116769590B (en) * | 2023-07-19 | 2024-03-19 | 西南科技大学 | LBR-anaerobic filter two-phase anaerobic digestion reactor |
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