CN103252339A - In-situ belueftung treatment process oriented to town refuse landfill - Google Patents
In-situ belueftung treatment process oriented to town refuse landfillDownload PDFInfo
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- CN103252339A CN103252339ACN2013101308496ACN201310130849ACN103252339ACN 103252339 ACN103252339 ACN 103252339ACN 2013101308496 ACN2013101308496 ACN 2013101308496ACN 201310130849 ACN201310130849 ACN 201310130849ACN 103252339 ACN103252339 ACN 103252339A
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Abstract
Description
Technical field
The present invention relates to a kind for the treatment of process of refuse landfill, relate to a kind of inside aeration treatment process of townm refuse landfill yard especially.
Background technology
Pollute the collection disposal etc. that renovation scheme is mainly underground impervious wall sealing and landfill gas and percolate for the tradition of old landfill yard for a long time, the mode of resettlement is adopted in the refuse landfill that also has.
The cut-pff wall sealing: around old landfill yard, build cut-pff wall by methods such as cement grouts, the degree of depth reaches underground water barrier, by the diffusion that " enclose, envelope is blocked up " completely cuts off percolate, will pollute control in landfill yard.The shortcoming of this scheme is can only passive shutoff, can not thoroughly effectively solve the percolate pollution problem.
Respectively landfill gas and percolate are collected disposal.For example dig a well at landfill heap body, lay gas collection pipes, collect solid waste gas, burning or generating are handled; The leachate collection well is set, the percolate extracting is derived, handle.These measures for a lot of construction initial stage with regard to regard to the old landfill yard of anti pollution facilities, therefore the collection of landfill gas and percolate is a difficult problem, is difficult to effectively to realize truly effective collection and processing.
The landfill yard resettlement is disposed this scheme and is also faced a lot of practical problems, for example how those inside still are in the landfill yard in anaerobism intense reaction period and excavate carrying work, move an inside still unstabilized landfill yard be one and be difficult to the engineering project that realizes.The process of resettlement may produce serious secondary pollution, and the expense of resettlement is huge.The rubbish of resettlement still will be sought new storing place, and place selection also is a very complex engineering.
More than pollute the time that the landfill yard Selfstabilizing all can't effectively be controlled or shorten to renovation scheme, i.e. pollution time and the pollution range of landfill gas and percolate.Need the common cooperation of several schemes to implement just can reach the purpose of comprehensive regulation, cause the engineering proposal complexity thus, the matching coordinative difficulty is disposed problems such as expending height, finally makes landfill yard pollute the regulation overlong time, and it is limited to pollute the control effect.Therefore be a difficult point in the environmental protection work for the renovation of old landfill yard always.
Therefore develop inside aeration (In-Situ Belueftung) technology that refuse landfill in recent years, changed the anaerobic state of landfill yard inside exactly, transferred oxygen condition to.Like this, the inner original anaerobic organism reaction of landfill yard will be ended, then the reaction of beginning aerobe.The original poisonous and harmful product that produces of anaerobic reaction, for example, biogas and percolate etc. also will be substituted by carbon dioxide and the water that aerobic reaction produced.This disposing technique blasts landfill yard inside with air, by blasting gas in the diffusion of landfill yard inside, makes its inside transfer oxygen condition to.Utilize short characteristics of biology aerobic reaction time simultaneously, reach the debirs of stablizing landfill yard in a short time, so stable landfill yard, the generation that control landfill gas and percolate pollute.Thereby namely disclose a kind of by reach the effect of rapid degradating solid refuse to solid refuse delivered inside air as Chinese patent 200510011155.6.But these technology have all only provided the basic fundamental concept, and do not carry out the refinement analysis at the soot concrete condition, and this situation makes present disclosed these inner aeration process be difficult to carry out practical application.
Summary of the invention
On the basis of above-mentioned inner aeration process, through applicant's research for many years, created that a kind of more rapidly and efficiently overall economic efficiency is higher, be more suitable for the inside aeration system of the townm refuse landfill yard of practical application.The concrete steps of this technology are as described below:
(1) in the suitable location of refuse landfill, the air supply pipe of densely covered pore on vertical or horizontally embedded a plurality of tube walls, this air supply pipe is supplied with by compression pump to the gas of refuse landfill delivered inside, the gas of carrying to air supply pipe is special processed gas, begin air feed until the bottom of garbage loading embeading layer from 15-20cm depths, the distance face of land, it is 5-10 rice that the density of air supply pipe is set to adjacent air supply pipe spacing distance, and the supply gas pressure of compression pump is determined according to the landfill density in soot;
(2) at the arranged around exhaust tube of air supply pipe, exhaust tube links to each other with aspiration pump and carries out high pressure and bleed, the speed of exhaust is determined according to the rule greater than air feed speed 10%～20%, the location arrangements of exhaust tube is for being arranged in equably around each air supply pipe, the gas of extracting out enters gas processing device, and gas is carried out draining into atmosphere again after the harmless treatment;
(3) in air supply pipe and exhaust tube, be provided with gas temperature sensor, the gas humidity sensor, the gas temperature of described sensor measurement and humidity data are sent to the air feed Gas controller;
(4) in refuse landfill a plurality of monitoring points are set, the inner detector in soot is set respectively, this detector comprises gas content analyzer, Temperature Humidity Sensor and pH meter, described gas content analyzer can come out the gas composition analysis of institute monitoring point, Temperature Humidity Sensor then can be measured temperature and the water content of the rubbish of position, pH meter is then measured the pH value of rubbish, all data are sent to the soot controller, above-mentioned monitoring point all is arranged on the intermediate point position of certain air supply pipe and adjacent exhaust tube, and the degree of depth of monitoring point is below the 30cm of the distance face of land;
(5) monitoring point that regularly in step (4), arranges to deep layer rubbish sampling go forward side by side and act charitably that oxygen animalcule is active to be detected, detection method adopts BacTiter-GloTMThe microbial cell activity test method detects data input central controller;
(6) by central controller the detection data from air feed Gas controller, soot controller are gathered operational analysis, compare with the normal operating conditions value of setting, central controller sends signal according to operation result to gas machining control device, instruct gas processing plant that air feed is carried out difference processing, central controller also sends signal according to operation result to compression pump and aspiration pump in addition, instruct air pump work, the aerobic microbiological activity data is for reference as the response parameter of one section refuse landfill in period ruuning situation.
Wherein said gas to the refuse landfill delivered inside is the gas through processing, concrete processing method is as follows: prepare solid APP 50-60 part, talcum powder 5-10 part, above-mentioned raw materials is mixed, select for use air-flow to pulverize, pulverize particle mean size less than 3 microns, make aerosol, this aerocolloidal concentration is 1400-1600mg/L, this aerosol mix with pressure-air when needed the back by compression pump to rubbish inside air feed, the ratio that aerosol mixes with air is 1: 3000-1: 5000.
Preferably, above-mentioned gas to the rubbish delivered inside also adds oxygen, and oxygen content gas is increased to 40%-50%.
Preferably, above-mentioned gas to the rubbish delivered inside also adds water, will carry the relative humidity of gas to be adjusted to 70-80.
The supply gas pressure of wherein said compression pump is determined according to the landfill density in soot, concrete determine that method is as follows: when the landfill density in soot during smaller or equal to 1.40kg/L, the supply gas pressure of compression pump is 5-6 standard atmospheric pressure, when the landfill density in soot greater than 1.40kg/L during smaller or equal to 1.55kg/L, the supply gas pressure of compression pump is 6-7 standard atmospheric pressure, when the landfill density in soot greater than 1.55kg/L, the supply gas pressure of compression pump is 7-9 standard atmospheric pressure.
Wherein said central controller is controlled according to detecting data, concrete control method is as follows: set between various standard regions at central controller: the temperature 15-35 of rubbish degree centigrade, the water content 10%-30% of rubbish, the pH value 5-8 of rubbish, oxygen content is greater than 8% in the solid waste gas, carbon dioxide content 0.10%-0.45%, obtaining the temperature and humidity of rubbish, pH meter is then measured after the pH Value Data of rubbish, it is compared with the standard that configures, if surpass the scope of setting, then central controller can give the alarm, and informs that the staff adjusts the aeration parameter, if only be the rubbish moisture deficit, then the central controller controls water delivery device adds moisture to carrying in the gas; If the oxygen content that only is rubbish is low excessively, then strengthen the pressure of compression pump, to the inner aeration of rubbish.
Preferably, the dissimilar and characteristics according to refuse landfill between above-mentioned standard regions can further reduce the scope, and reach more accurate control effect.
Technology provided by the present invention and original technology have several significant differences, at first, regulate and control to the gas of rubbish delivered inside, by adding aerosol to carrying in the gas, reached and replenished the necessary nitrogen of growth of aerobic microorganisms and phosphorus to rubbish inside, though owing to generally contain comparatively sufficient nitrogenous source in the municipal refuse, microorganism can utilize P elements comparatively to lack, and therefore can allow aerobic microbiological grow better to garbage loading embeading layer inside by the gas make-up P elements.In addition, for old refuse landfill, its garbage loading embeading layer inside has formed anaerobic environment, microbiota is the absolute predominance population with the anaerobe, therefore the foundation of aerobic microbiological population advantage link the most consuming time often when using inner aeration system, when aerobic microbiological is set up the population advantage afterwards and is entered exponential phase, microorganism aerobic metabolic rate in the garbage loading embeading layer just can reach desirable speed, contain nitrogen by input in refuse landfill, the gas of phosphorus, not only can provide the required oxygen of growth of aerobic microorganisms can also provide growth of aerobic microorganisms required nutrient, thereby make aerobic microbiological can become dominant population in the microbiota quickly, this has saved the time that aeration system begun effect greatly (follow-up have experimental data to confirm), this has shortened the whole time that aeration is handled has been carried out in refuse landfill, improve treatment effeciency, reduced processing cost.
Secondly, technology provided by the invention at different garbage loading embeading density clear and definite different aeration pressure, this makes aeration more efficient, can reach good aeration effect on the one hand, on the other hand can be with pressure control in reasonable enough scopes, avoid strengthening aeration pressure simply in order to reach good aeration effect, reduced the work energy consumption.And keep bleeding effect greater than air feed, this just can be in the inner negative pressure that forms of garbage loading embeading layer, and the waste gas of rubbish inside can not be emitted in the atmosphere, has kept the cleaning of soot air.
At last, technology provided by the invention uses central controller that real time data is monitored, make the engineering staff can grasp effect and progress that aeration is handled engineering in real time, and central controller can be regulated air supply system automatically under some simple scenario, realization has made things convenient for controlling whole system to the adjusting of input gas.
Description of drawings
Fig. 1 is the inner aeration system facility of refuse landfill of the present invention schematic diagram.
The specific embodiment
Embodiment 1
Trial zone, Nanjing refuse landfill, this refuse landfill are three grades of sanitary filling fields based on municipal refuse, landfill density 1.51kg/L, 10 years landfill time, 5 meters of the landfill degree of depth, 20 * 20 meters of pilot regions, test period May-July.One of control zone is set.
(1) in the suitable location of refuse landfill, vertically bury the air supply pipe of the pore that gathers on a plurality of tube walls underground, this air supply pipe is supplied with by compression pump to the gas of refuse landfill delivered inside, the gas of carrying to air supply pipe is special processed gas, begin air feed until the bottom of garbage loading embeading layer from 15cm depths, the distance face of land, it is 5 meters that the density of air supply pipe is set to adjacent air supply pipe spacing distance, and the supply gas pressure of compression pump is 6 atmospheric pressure;
(2) at the arranged around exhaust tube of air supply pipe, exhaust tube links to each other with aspiration pump and carries out high pressure and bleed, the speed of exhaust is determined according to the rule greater than air feed speed 15%, the location arrangements of exhaust tube is for being arranged in equably around each air supply pipe, the gas of extracting out enters gas processing device, and gas is carried out draining into atmosphere again after the harmless treatment;
(3) in air supply pipe and exhaust tube, be provided with gas temperature sensor, the gas humidity sensor, the gas temperature of described sensor measurement and humidity data are sent to the air feed Gas controller;
(4) in refuse landfill a plurality of monitoring points are set, the inner detector in soot is set respectively, this detector comprises gas content analyzer, Temperature Humidity Sensor and pH meter, described gas content analyzer can come out the gas composition analysis of institute monitoring point, Temperature Humidity Sensor then can be measured temperature and the water content of the rubbish of position, pH meter is then measured the pH value of rubbish, all data are sent to the soot controller, above-mentioned monitoring point all is arranged on the intermediate point position of certain air supply pipe and adjacent exhaust tube, and the degree of depth of monitoring point is at distance face of land 70cm;
(5) monitoring point that regularly in step (4), arranges to deep layer rubbish sampling go forward side by side and act charitably that oxygen animalcule is active to be detected, detection method adopts BacTiter-GloTMThe microbial cell activity test method detects data input central controller, detects once in per two days;
(6) by central controller the detection data from air feed Gas controller, soot controller are gathered operational analysis, compare with the normal operating conditions value of setting, central controller sends signal according to operation result to gas machining control device, instruct gas processing plant that air feed is carried out difference processing, central controller also sends signal according to operation result to compression pump and aspiration pump in addition, instruct air pump work, the aerobic microbiological activity data is for reference as the response parameter of one section refuse landfill in period ruuning situation.
Wherein said gas to the refuse landfill delivered inside is the gas through processing, concrete processing method is as follows: prepare 50 parts of solid APPs, 5 parts of talcum powder, above-mentioned raw materials is mixed, select for use air-flow to pulverize, pulverize particle mean size less than 3 microns, make aerosol, this aerocolloidal concentration is 1500mg/L, this aerosol mix with pressure-air when needed the back by compression pump to rubbish inside air feed, the ratio that aerosol mixes with air is 1: 4000.
Preferably, above-mentioned gas to the rubbish delivered inside also adds oxygen, and oxygen content gas is increased to 40%.
Preferably, above-mentioned gas to the rubbish delivered inside also adds water, will carry the relative humidity of gas to be adjusted to 70.
Wherein said central controller is controlled according to detecting data, concrete control method is as follows: set between various standard regions at central controller: the temperature 20-30 of rubbish degree centigrade, the water content 15%-25% of rubbish, the pH value 6-8 of rubbish, oxygen content is greater than 8% in the solid waste gas, carbon dioxide content 0.15%-0.35%, obtaining the temperature and humidity of rubbish, pH meter is then measured after the pH Value Data of rubbish, it is compared with the standard that configures, if surpass the scope of setting, then central controller can give the alarm, and informs that the staff adjusts the aeration parameter, if only be the rubbish moisture deficit, then the central controller controls water delivery device adds moisture to carrying in the gas; If the oxygen content that only is rubbish is low excessively, then strengthen pressure to 7 atmospheric pressure of compression pump, to the inner aeration of rubbish.
Test period was 12 weeks altogether, by regularly to the detection of aerobic microbiological activity, we find the aerobic microbiological activity since the 4th day near maximum, aerobic microbiological is active after the 68th day obviously weakens, this illustrates that aerobic reaction finishes substantially.
The check experiment district does not add the aerosol in institute's supplied gas, other treatment process are constant fully, by regular detection to the aerobic microbiological activity, we find the aerobic microbiological activity since the 10th day near maximum, aerobic microbiological was active later on since the 80th day obviously weakens, and this explanation aerobic reaction finishes substantially.
Embodiment 2
Trial zone, Changzhou refuse landfill, this refuse landfill are simple and easy disposal of refuse landfill yard based on surrounding city rubbish, landfill density 1.34kg/L, 8 years landfill time, 3 meters of the landfill degree of depth, 20 * 20 meters of pilot regions, test period May-August.One of control zone is set.
(1) in the suitable location of refuse landfill, vertically bury the air supply pipe of the pore that gathers on a plurality of tube walls underground, this air supply pipe is supplied with by compression pump to the gas of refuse landfill delivered inside, the gas of carrying to air supply pipe is special processed gas, begin air feed until the bottom of garbage loading embeading layer from 15cm depths, the distance face of land, it is 5 meters that the density of air supply pipe is set to adjacent air supply pipe spacing distance, and the supply gas pressure of compression pump is 5 atmospheric pressure;
(2) at the arranged around exhaust tube of air supply pipe, exhaust tube links to each other with aspiration pump and carries out high pressure and bleed, the speed of exhaust is determined according to the rule greater than air feed speed 20%, the location arrangements of exhaust tube is for being arranged in equably around each air supply pipe, the gas of extracting out enters gas processing device, and gas is carried out draining into atmosphere again after the harmless treatment;
(3) in air supply pipe and exhaust tube, be provided with gas temperature sensor, the gas humidity sensor, the gas temperature of described sensor measurement and humidity data are sent to the air feed Gas controller;
(4) in refuse landfill a plurality of monitoring points are set, the inner detector in soot is set respectively, this detector comprises gas content analyzer, Temperature Humidity Sensor and pH meter, described gas content analyzer can come out the gas composition analysis of institute monitoring point, Temperature Humidity Sensor then can be measured temperature and the water content of the rubbish of position, pH meter is then measured the pH value of rubbish, all data are sent to the soot controller, above-mentioned monitoring point all is arranged on the intermediate point position of certain air supply pipe and adjacent exhaust tube, and the degree of depth of monitoring point is at distance face of land 50cm;
(5) monitoring point that regularly in step (4), arranges to deep layer rubbish sampling go forward side by side and act charitably that oxygen animalcule is active to be detected, detection method adopts BacTiter-GloTMThe microbial cell activity test method detects data input central controller, detects once in per two days;
(6) by central controller the detection data from air feed Gas controller, soot controller are gathered operational analysis, compare with the normal operating conditions value of setting, central controller sends signal according to operation result to gas machining control device, instruct gas processing plant that air feed is carried out difference processing, central controller also sends signal according to operation result to compression pump and aspiration pump in addition, instruct air pump work, the aerobic microbiological activity data is for reference as the response parameter of one section refuse landfill in period ruuning situation.
Wherein said gas to the refuse landfill delivered inside is the gas through processing, concrete processing method is as follows: prepare 60 parts of solid APPs, 5 parts of talcum powder, above-mentioned raw materials is mixed, select for use air-flow to pulverize, pulverize particle mean size less than 3 microns, make aerosol, this aerocolloidal concentration is 1500mg/L, this aerosol mix with pressure-air when needed the back by compression pump to rubbish inside air feed, the ratio that aerosol mixes with air is 1: 3500.
Preferably, above-mentioned gas to the rubbish delivered inside also adds oxygen, and oxygen content gas is increased to 40%.
Preferably, above-mentioned gas to the rubbish delivered inside also adds water, will carry the relative humidity of gas to be adjusted to 70.
Wherein said central controller is controlled according to detecting data, concrete control method is as follows: set between various standard regions at central controller: the temperature 20-30 of rubbish degree centigrade, the water content 15%-30% of rubbish, the pH value 6-8 of rubbish, oxygen content is greater than 8% in the solid waste gas, carbon dioxide content 0.10%-0.40%, obtaining the temperature and humidity of rubbish, pH meter is then measured after the pH Value Data of rubbish, it is compared with the standard that configures, if surpass the scope of setting, then central controller can give the alarm, and informs that the staff adjusts the aeration parameter, if only be the rubbish moisture deficit, then the central controller controls water delivery device adds moisture to carrying in the gas; If the oxygen content that only is rubbish is low excessively, then strengthen pressure to 6 atmospheric pressure of compression pump, to the inner aeration of rubbish.
Test period was 16 weeks altogether, by regularly to the detection of aerobic microbiological activity, we find the aerobic microbiological activity since the 8th day near maximum, aerobic microbiological is active after the 84th day obviously weakens, this illustrates that aerobic reaction finishes substantially.
The check experiment district does not add the aerosol in institute's supplied gas, other treatment process are constant fully, by regular detection to the aerobic microbiological activity, we find the aerobic microbiological activity since the 14th day near maximum, aerobic microbiological was active later on since the 106th day obviously weakens, and this explanation aerobic reaction finishes substantially.
As can be seen, technology provided by the present invention is being accelerated the aeration project progress from this test, and shortening on the aeration time has positive effect.Having favorable actual application is worth.
Those skilled in the art can make replacement or modification to content of the present invention according to content disclosed by the invention and the art technology of grasping; but these replacements or modification should not be considered as breaking away from the present invention's design, and these replacements or modification are all in the claimed interest field of the present invention.
Claims (7)
1. the inside aeration system of a townm refuse landfill yard is characterized in that the concrete steps of this technology are as follows:
(1) in the suitable location of refuse landfill, the air supply pipe of densely covered pore on vertical or horizontally embedded a plurality of tube walls, this air supply pipe is supplied with by compression pump to the gas of refuse landfill delivered inside, the gas of carrying to air supply pipe is special processed gas, begin air feed until the bottom of garbage loading embeading layer from 15-20cm depths, the distance face of land, it is 5-10 rice that the density of air supply pipe is set to adjacent air supply pipe spacing distance, and the supply gas pressure of compression pump is determined according to the landfill density in soot;
(2) at the arranged around exhaust tube of air supply pipe, exhaust tube links to each other with aspiration pump and carries out high pressure and bleed, the speed of exhaust is determined according to the rule greater than air feed speed 10%～20%, the location arrangements of exhaust tube is for being arranged in equably around each air supply pipe, the gas of extracting out enters gas processing device, and gas is carried out draining into atmosphere again after the harmless treatment;
(3) in air supply pipe and exhaust tube, be provided with gas temperature sensor, the gas humidity sensor, the gas temperature of described sensor measurement and humidity data are sent to the air feed Gas controller;
(4) in refuse landfill a plurality of monitoring points are set, the inner detector in soot is set respectively, this detector comprises gas content analyzer, Temperature Humidity Sensor and pH meter, described gas content analyzer can come out the gas composition analysis of institute monitoring point, Temperature Humidity Sensor then can be measured temperature and the water content of the rubbish of position, pH meter is then measured the pH value of rubbish, all data are sent to the soot controller, above-mentioned monitoring point all is arranged on the intermediate point position of certain air supply pipe and adjacent exhaust tube, and the degree of depth of monitoring point is below the 30cm of the distance face of land;
(5) monitoring point that regularly in step (4), arranges to deep layer rubbish sampling go forward side by side and act charitably that oxygen animalcule is active to be detected, detection method adopts BacTiter-GloTMThe microbial cell activity test method detects data input central controller;
(6) by central controller the detection data from air feed Gas controller, soot controller are gathered operational analysis, compare with the normal operating conditions value of setting, central controller sends signal according to operation result to gas machining control device, instruct gas processing plant that air feed is carried out difference processing, central controller also sends signal according to operation result to compression pump and aspiration pump in addition, instruct air pump work, the aerobic microbiological activity data is for reference as the response parameter of one section refuse landfill in period ruuning situation.
2. the inside aeration system of the townm refuse landfill yard described in the claim 1, it is characterized in that wherein said gas to the refuse landfill delivered inside is the gas through processing, concrete processing method is as follows: prepare solid APP 50-60 part, talcum powder 5-10 part, above-mentioned raw materials is mixed, select for use air-flow to pulverize, pulverize particle mean size less than 3 microns, make aerosol, this aerocolloidal concentration is 1400-1600mg/L, this aerosol mix with pressure-air when needed the back by compression pump to rubbish inside air feed, the ratio that aerosol mixes with air is 1: 3000-1: 5000.
3. the inside aeration system of the townm refuse landfill yard described in the claim 2 is characterized in that above-mentioned gas to the rubbish delivered inside also adds oxygen, is increased to 40%-50% with oxygen content gas.
4. the inside aeration system of the townm refuse landfill yard described in the claim 2 or 3 is characterized in that above-mentioned gas to the rubbish delivered inside also adds water, will carry the relative humidity of gas to be adjusted to 70-80.
5. the inside aeration system of the townm refuse landfill yard described in the claim 1, the supply gas pressure that it is characterized in that wherein said compression pump is determined according to the landfill density in soot, concrete determine that method is as follows: when the landfill density in soot during smaller or equal to 1.40kg/L, the supply gas pressure of compression pump is 5-6 standard atmospheric pressure, when the landfill density in soot greater than 1.40kg/L during smaller or equal to 1.55kg/L, the supply gas pressure of compression pump is 6-7 standard atmospheric pressure, when the landfill density in soot greater than 1.55kg/L, the supply gas pressure of compression pump is 7-9 standard atmospheric pressure.
6. the inside aeration system of the townm refuse landfill yard described in the claim 1, it is characterized in that wherein said central controller controls according to detecting data, concrete control method is as follows: set between various standard regions at central controller: the temperature 15-35 of rubbish degree centigrade, the water content 10%-30% of rubbish, the pH value 5-8 of rubbish, oxygen content is greater than 8% in the solid waste gas, carbon dioxide content 0.10%-0.45%, obtaining the temperature and humidity of rubbish, pH meter is then measured after the pH Value Data of rubbish, it is compared with the standard that configures, if surpass the scope of setting, then central controller can give the alarm, inform that the staff adjusts the aeration parameter, if only be the rubbish moisture deficit, then the central controller controls water delivery device adds moisture to carrying in the gas; If the oxygen content that only is rubbish is low excessively, then strengthen the pressure of compression pump, to the inner aeration of rubbish.
7. the inside aeration system of the townm refuse landfill yard described in the claim 6 is characterized in that the dissimilar and characteristics according to refuse landfill can further reduce the scope between described standard regions, reaches more accurate control effect.
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| CN111495918A (en)* | 2020-04-13 | 2020-08-07 | 中国科学院武汉岩土力学研究所 | Gas injection control method for cluster wells in landfill |
| CN117003432A (en)* | 2023-08-29 | 2023-11-07 | 湖北厚水科技发展有限公司 | Comprehensive harmless treatment method and system for medical sewage and process waste gas treatment |
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| CN103252339B (en) | 2015-04-08 |
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