CN211247723U - Rapid stabilization system for refuse landfill - Google Patents
Rapid stabilization system for refuse landfill Download PDFInfo
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- CN211247723U CN211247723U CN201921822861.2U CN201921822861U CN211247723U CN 211247723 U CN211247723 U CN 211247723U CN 201921822861 U CN201921822861 U CN 201921822861U CN 211247723 U CN211247723 U CN 211247723U
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Abstract
The utility model discloses a landfill quick stabilization system, the bottom of the rubbish heap body is provided with leachate horizontal drainage system, and the drainage system is irritated to the plug-in of rubbish heap body and is taken out gas injection system and leachate, and leachate horizontal drainage system and leachate irritate drainage system intercommunication leachate collection well. One end of an air pumping and injecting pipeline in the air pumping and injecting system is vertically inserted into the garbage pile body, the other end of the air pumping and injecting pipeline is connected with a second control system, and the other end of the second control system is connected with an air injection fan and an air exhaust fan. One end of the leachate discharge system is vertically inserted into the landfill garbage pile body, the other end of the leachate discharge system is connected with a third control system, and the other end of the third control system is connected with a leachate pumping and discharging pump and a leachate lifting pump. The utility model provides sufficient oxygen for the landfill garbage, and ensures the aerobic biochemical degradation of the landfill garbage; the leachate is recharged to make the landfill become a composite 'purification reactor', the nutrient substances in the leachate can be fully circulated in the garbage pile, and the growth and metabolism efficiency of microorganisms is effectively improved.
Description
Technical Field
The invention relates to the technical field of household garbage treatment, in particular to a rapid stabilization system for a garbage landfill.
Background
With the increase of urbanization speed in China and the improvement of living standard of people, garbage generated in cities is continuously increased, and the ecological environment and the health of residents of the cities are threatened.
At present, a large number of domestic garbage landfill sites reach designed storage capacity and face field sealing. How to carry out ecological remediation and landscape greening on the urban ecological restoration landscape, reduce pollution, realize sustainable use of land resources, and provide brand-new and elegant landscape and rest space for urban residents, which becomes a problem to be solved urgently.
Because the landfill ages of some landfill sites are short and at the peak of gas production, the landfill bodies are in an unstable state and need to be stabilized by using aerobic stable degradation measures, and conditions are created for field sealing on site.
The core of the aerobic stabilization technology is that air is injected into a refuse landfill through certain equipment or facilities, the refuse landfill is changed into an aerobic bioreactor, degradable organic matters in the household refuse are degraded in an accelerating way under the aerobic condition, and the final products of degradation are stable components, carbon dioxide and water. Due to the fact thatThe garbage distribution of the landfill site is not uniform, the reaction process of aerobic degradation is more complicated, and the main component of the discharged landfill gas is CO2Excess of O2And a small amount of CH4. Meanwhile, the water content of the garbage heap has great influence on the aerobic degradation reaction, so that the situations of incomplete mineralization of the garbage heap, unsatisfactory mineralization effect and the like in the aerobic stabilization process are easily caused.
Disclosure of Invention
The rapid stabilization system for the refuse landfill provided by the embodiment of the invention is characterized in that the bottom of the refuse pile body is provided with a leachate horizontal guide and discharge system, a gas pumping and injection system and a leachate discharge system are inserted in the refuse pile body, the leachate horizontal guide and discharge system and the leachate discharge system are communicated with a leachate collecting well,
the leachate horizontal drainage system consists of a high-density polyethylene pipe, wherein small holes with the diameter of 3-15 mm are formed in the high-density polyethylene pipe,
one end of a gas pumping and injecting pipeline in the gas pumping and injecting system is vertically inserted into the garbage pile body, the other end of the gas pumping and injecting pipeline is connected with a second control system, and the other end of the second control system is connected with a gas injecting fan and a gas exhausting fan;
one end of the leachate discharge system is vertically inserted into the landfill garbage pile body, the other end of the leachate discharge system is connected with a third control system, and the other end of the third control system is connected with a leachate pumping and discharging pump and a leachate lifting pump
The invention provides sufficient oxygen for the landfill garbage and ensures the aerobic biochemical degradation of the landfill garbage; the leachate is recharged to make the landfill become a composite 'purification reactor', the nutrient substances in the leachate can be fully circulated in the garbage pile, and the growth and metabolism efficiency of microorganisms is effectively improved.
Furthermore, the gas pumping and injecting system comprises three pipelines with different lengths, the ports of the pipelines are respectively positioned at the upper part, the middle part and the lower part of the garbage pile body, and the pipelines can be used as a gas injection device and also can be used as a gas extraction device.
Further, the gas injection fan injects air into the garbage pile body through the gas injection pipeline through the gas extraction and injection system, and a gas heat exchanger is arranged between the gas injection fan and the gas extraction and injection system.
Furthermore, the landfill gas is pumped out of the garbage pile body through a gas pumping system by a gas pumping fan through a gas pumping pipeline, and a liquid-water separator is arranged between the gas pumping fan and the gas pumping system.
Further, the leachate irrigation and drainage system comprises three pipelines with different lengths, which are respectively positioned at the upper part, the middle part and the lower part of the garbage pile body.
Further comprises a monitoring system, wherein a gas detector, a temperature sensor and a humidity sensor are arranged in the monitoring system, one end of the monitoring system is vertically inserted into the landfill garbage stack body, the other end of the monitoring system is connected with a first control system,
the gas detector detects that oxygen in the garbage pile body is insufficient, and the first control system controls the second control system to start the gas injection device; gas detector for detecting CO in garbage stack2When the content is too high, the first control system controls the second control system to start the air extraction device,
when the humidity sensor monitors that the water content of the garbage pile is less than 40%, the first control system controls the third control system to start the leachate recharging device, so that the water content of the garbage pile reaches 40% -60%; when the humidity sensor monitors that the water content of the garbage pile body is more than 60%, the first control system controls the third control system to start the leachate drainage guide device, so that the water content of the garbage pile body reaches 40% -60%.
And further, the garbage truck further comprises an anti-seepage system, wherein the anti-seepage system is positioned at the bottom of the garbage pile body, and the leachate horizontal drainage system is positioned at the upper part of the anti-seepage system.
Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a rapid stabilization system for a landfill according to an embodiment of the present invention.
1-pumping and injecting gas system; 2-leachate irrigation and drainage system; 3-a monitoring system; 4-leachate horizontal drainage system; 5-an anti-seepage system; 6-leachate collecting well; 7-a second control system; 8, a gas injection fan; 9-gas heat exchanger; 10-gas line; 11-an extraction line; 12-steam-water separator; 13-an air extractor; 14-a third control system; 15-leachate drainage pipeline; 16-leachate pumping and draining pump; 17-leachate recharge pipeline; 18-leachate lift pump; 19 — a first control system; 20-refuse pile
Detailed Description
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Referring to fig. 1, in the rapid stabilization system for a landfill site according to the embodiment of the present invention, a leachate horizontal drainage system 4 is disposed at the bottom of a landfill body 20, a gas pumping and injection system 1 and a leachate drainage system 2 are inserted into the landfill body 20, and the leachate horizontal drainage system 4 and the leachate drainage system 2 are communicated with a leachate collection well 6. The leachate horizontal drainage system 4 consists of a high-density polyethylene pipe, and small holes with the diameter of 3-15 mm are formed in the high-density polyethylene pipe. One end of a gas pumping and injecting pipeline in the gas pumping and injecting system 1 is vertically inserted into the garbage pile body 20, the other end of the gas pumping and injecting pipeline is connected with a second control system 7, and the other end of the second control system 7 is connected with a gas injection fan 8 and a gas pumping fan; one end of the leachate discharge system 2 is vertically inserted into the landfill garbage pile body 20, the other end of the leachate discharge system is connected with the third control system 14, and the other end of the third control system 14 is connected with the leachate pumping and discharging pump 16 and the leachate lifting pump 18.
The invention provides sufficient oxygen for the landfill garbage and ensures the aerobic biochemical degradation of the landfill garbage; the leachate is recharged to form a composite purification reactor, so that the nutrient substances in the leachate can be fully circulated in the garbage stack 20, and the growth and metabolism efficiency of microorganisms is effectively improved.
Further, the gas pumping and injecting system 1 includes three pipes with different lengths, the ports of the pipes are respectively located at the upper part, the middle part and the lower part of the garbage stack 20, and the pipes can be used as gas injection devices or gas extraction devices. The length of the pipe is determined according to the depth of the garbage stack 20. In addition, the pipeline can be used as an air injection device and also can be used as an air extraction device.
Further, the gas injection fan 8 injects air into the garbage stack 20 through the gas injection and extraction system 1 via the gas pipeline 10, and a gas heat exchanger 9 is arranged between the gas injection fan 8 and the gas injection and extraction system 1. The landfill gas is pumped out of the garbage pile body 20 through the gas pumping and injecting system 1 by a gas pumping fan 13 through a gas pumping pipeline 11, and a steam-water separator 12 is arranged between the gas pumping fan 13 and the gas pumping and injecting system 1. Therefore, air passing through the gas heat exchanger is input into the garbage pile body, and evaporation of water in the garbage pile body is accelerated.
Further, the leachate irrigation and drainage system 2 comprises three pipes of different lengths, which are respectively located at the upper part, the middle part and the lower part of the garbage stack 20. The length of the pipe is determined according to the depth of the garbage stack 20. In addition, the pipeline can be used as a leachate guiding and draining device and also can be used as a leachate recharging device.
That is, the leachate pumping and draining pump 16 pumps leachate through the leachate guiding and draining line 15 into the leachate collection well 6, and the leachate lift pump 18 recharges leachate through the leachate recharging line 17 into the landfill body 20.
Further, still include monitoring system 3, set up gas detection appearance, temperature sensor and humidity transducer in the monitoring system 3, monitoring system 3's one end is inserted perpendicularly in landfill rubbish heap body 20, and the other end is connected with first control system 19. The gas detector detects that the oxygen in the garbage stack 20 is insufficient, and the first control system 19 controls the second control system 7 to start gas injectionA device; the gas detector detects CO in the garbage dump 202If the content is too high, the first control system 19 controls the second control system 7 to start the air extracting device. When the humidity sensor monitors that the water content of the garbage heap 20 is less than 40%, the first control system 19 controls the third control system to start the leachate recharging device, so that the water content of the garbage heap 20 reaches 40% -60%; when the humidity sensor monitors that the water content of the garbage stack 20 is more than 60%, the first control system 19 controls the third control system to start the leachate drainage guide device, so that the water content of the garbage stack 20 reaches 40% -60%.
Further, an anti-seepage system 5 is further included, the anti-seepage system 5 is positioned at the bottom of the garbage stack 20, and the leachate horizontal drainage system 4 is positioned at the upper part of the anti-seepage system 5.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The rapid stabilization system of the refuse landfill is characterized in that the bottom of the refuse pile body is provided with a leachate horizontal drainage system, a gas pumping system and a leachate irrigation system are inserted in the refuse pile body, the leachate horizontal drainage system and the leachate irrigation system are communicated with a leachate collecting well,
the leachate horizontal drainage system consists of a high-density polyethylene pipe, wherein small holes with the diameter of 3-15 mm are formed in the high-density polyethylene pipe,
one end of a gas pumping and injecting pipeline in the gas pumping and injecting system is vertically inserted into the garbage pile body, the other end of the gas pumping and injecting pipeline is connected with a second control system, and the other end of the second control system is connected with a gas injecting fan and a gas exhausting fan;
one end of the leachate discharge system is vertically inserted into the landfill garbage pile body, the other end of the leachate discharge system is connected with a third control system, and the other end of the third control system is connected with a leachate pumping and discharging pump and a leachate lifting pump.
2. The rapid landfill site stabilization system according to claim 1, wherein the gas pumping and injecting system comprises three pipes with different lengths, the ports of the pipes are respectively located at the upper part, the middle part and the lower part of the garbage pile body, and the pipes can be used as gas injection devices and gas extraction devices.
3. The rapid landfill stabilization system according to claim 1, wherein the gas injection blower injects air into the landfill through the gas injection line via a gas extraction and injection system, and a gas heat exchanger is provided between the gas injection blower and the gas extraction and injection system.
4. The rapid landfill site stabilization system according to claim 1, wherein an air extractor is provided to extract landfill gas from the landfill through an air extraction and injection system via an air extraction line, and a liquid-water separator is provided between the air extractor and the air extraction and injection system.
5. The rapid landfill stabilization system of claim 1, wherein the leachate discharge system includes three pipes of different lengths, respectively located at the upper, middle and lower portions of the landfill body.
6. The rapid landfill stabilization system according to claim 1, further comprising a monitoring system, wherein the monitoring system is provided with a gas detector, a temperature sensor and a humidity sensor, one end of the monitoring system is vertically inserted into the landfill garbage pile body, the other end of the monitoring system is connected with the first control system,
the gas detector detects that oxygen in the garbage pile body is insufficient, and the first control system controls the second control system to start the gas injection device; when the gas detector detects that the content of CO2 in the garbage pile is too high, the first control system controls the second control system to start the air extractor,
when the humidity sensor monitors that the water content of the garbage pile is less than 40%, the first control system controls the third control system to start the leachate recharging device, so that the water content of the garbage pile reaches 40% -60%; when the humidity sensor monitors that the water content of the garbage pile body is more than 60%, the first control system controls the third control system to start the leachate drainage guide device, so that the water content of the garbage pile body reaches 40% -60%.
7. The rapid landfill site stabilization system according to claim 1, further comprising an anti-seepage system located at the bottom of the landfill body, and a leachate horizontal drainage system located at the upper part of the anti-seepage system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921822861.2U CN211247723U (en) | 2019-10-28 | 2019-10-28 | Rapid stabilization system for refuse landfill |
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| CN201921822861.2U CN211247723U (en) | 2019-10-28 | 2019-10-28 | Rapid stabilization system for refuse landfill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246822A (en) * | 2020-08-27 | 2021-01-22 | 南京万德斯环保科技股份有限公司 | Oxygen therapy aeration system for accelerating stabilization of refuse landfill |
| CN114700342A (en) * | 2022-05-24 | 2022-07-05 | 浙江大学 | Equipment and method for in-situ pretreatment of stored garbage |
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2019
- 2019-10-28 CN CN201921822861.2U patent/CN211247723U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246822A (en) * | 2020-08-27 | 2021-01-22 | 南京万德斯环保科技股份有限公司 | Oxygen therapy aeration system for accelerating stabilization of refuse landfill |
| CN114700342A (en) * | 2022-05-24 | 2022-07-05 | 浙江大学 | Equipment and method for in-situ pretreatment of stored garbage |
| CN114700342B (en) * | 2022-05-24 | 2022-08-23 | 浙江大学 | Equipment and method for in-situ pretreatment of stored garbage |
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