CN102380498A - Aerobic treating system and method for refuse landfill - Google Patents
Aerobic treating system and method for refuse landfill Download PDFInfo
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- CN102380498A CN102380498A CN2011102204052A CN201110220405A CN102380498A CN 102380498 A CN102380498 A CN 102380498A CN 2011102204052 A CN2011102204052 A CN 2011102204052A CN 201110220405 A CN201110220405 A CN 201110220405A CN 102380498 A CN102380498 A CN 102380498A
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Abstract
The invention discloses an aerobic treating process for a refuse landfill, which belongs to the field of environmental protection. The process is used for treating a landfill by using an aerobic biological method. An aerobic treating system comprises an air injection system, an air sucking system, a water injection system, a filtering and discharging system and a monitoring system. Degradable organic matters in refuse are degraded rapidly mainly through an aerobic biological reaction, so that the refuse is in a stable state. In the treating process, gas generated by the aerobic biological reaction of the refuse is mainly carbon dioxide. Refuse leachate is not discharged outwardly, but is directly consumed in the refuse landfill by recharging, so that the environment is protected from being polluted. After treatment, gas and leachate which cause environmental pollution are not generated, so that the treated landfill is stable.
Description
Technical field
The invention belongs to the environmental protection field, method and treatment system are handled in particularly a kind of refuse landfill well.
Background technology
The treatment and disposal of domestic waste is main with burning, compost and landfill technology mainly.As the final disposal means of domestic waste, landfill method has irreplaceable effect.According to statistics, 2004, China's domestic waste landfill disposal amount accounted for 87.7% of total treating capacity.Because the stabilization process of landfill yard is very long, need the time of decades usually, and that the measure of any collection and processing all is difficult to keep decades is effective, even if therefore sanitary filling field still exists long-term potential threat.
Since historical reasons, the enormous amount of the informal landfill yard that forms in each city, the whole nation.Only the informal refuse landfill in the Beijing area has 1011 at present, and 8,000 ten thousand tons of rubbish storage amounts are taken up an area of 20,000 mu.These informal refuse landfills do not have seepage control measure and cover gas directing system, have atmospheric environment, and water environment, soil environment pollution hidden trouble are demanded urgently administering.
CN101804417A openly queries the method for domestic waste active landfill, and it may further comprise the steps: the residue landfill disposal not capable of using that garbage loading embeading adopts district operation, landfill waste is carried out Anaerobic Treatment, anaerobism landfill waste is later carried out Aerobic Process for Treatment, the rubbish after the Aerobic Process for Treatment is carried out sorting, sub-elects.Though this method can partly realize the innoxious of domestic waste, its Aerobic Process for Treatment phase is shorter, can't realize rubbish processing to be harmless fully, is therefore in fact also needed the stationary phase of quite long and even many decades by the rubbish of landfill.
Therefore, how to accelerate organic degraded in the landfill yard, quicken stabilization procedures, thereby reduce its harm, become a major issue of landfill yard improvement technology environment.
Summary of the invention
The object of the invention is exactly in order to address the above problem, and provides a kind of landfill yard aerobic improvement technology.Through being main biological respinse with aerobic, the labile organic compound in the rubbish is degraded fast, thereby make rubbish reach stable state.
The basic principle of technology of the present invention is that refuse landfill is regarded as a huge container, uses high pressure positive blower, through pipeline and gas injection well; In refuse landfill, inject air; Airborne oxygen is participated in degradation of organic matter reaction in the rubbish, in the presence of oxygen G&W, through with aerobic being main biological respinse; Labile organic compound in the rubbish is degraded fast, thereby make rubbish reach stable state.
System of the present invention comprises gas injection system, extract system, filtering emission system and monitoring system.
In the present invention, in refuse landfill, inject air through gas injection system, this gas injection system comprises: a plurality of gas injection wells are laid in the junk-heap body; A plurality of gas injecting pipes are communicated to gas injection well, and the gas injection blower fan, are connected to gas injecting pipe.
Gases such as carbon dioxide after extract system is used for abstraction reaction and produces, again through the filtering emission system with waste gas filtering after qualified discharge.This extract system comprises: a plurality of extraction wells are laid in the junk-heap body; A plurality of pump-lines are communicated to extraction well; And the blower fan of bleeding, be connected to pump-line.This extract system may further include moisture trap, and the upper reaches that it is arranged on particulate filter are used for telling the moisture of extracting gas out, the blower fan thereby protection is bled.
The filtering emission system is located at the extract system downstream, is used for removing the particle and the pernicious gas of emission gases.
Monitoring system is used for temperature, gas composition concentration and/or the humidity of monitoring rubbish heap body; Of the present invention general aspect; This monitoring system comprises temperature monitoring system and gas composition detection system; Wherein temperature monitoring system comprises: temperature sensor, and it is installed on respectively in the temperature detection well of extraction well, gas injection well and setting in addition; Temperature controller, it accepts the data from temperature sensor, and with gas injection blower fan telecommunication, the speed that is used to regulate the gas injection blower fan.In a kind of exemplary embodiment, the data of temperature sensor concentrate on temperature recorder respectively earlier, are transferred to temperature controller by temperature recorder through the remote transmission device again.This temperature monitoring system can remain on the temperature of junk-heap body 30～60 ℃.The gas componant detection system is used for detecting the composition of the gas of said refuse landfill, and with said filtering emission system telecommunication.
In a kind of specific embodiment of the present invention, the gas componant detection system comprises: the gas detecting well; Be communicated to the gas sampling point of gas detecting well; Detector is arranged in the said spot sampling point; The gas componant register writes down the data that said detector obtains; The gas componant controller accepts to become from gas the data of register, and with said filtering emission system telecommunication.
In a kind of specific embodiment of the present invention, the filtering emission device comprises: air-introduced machine is installed in the downstream of the blower fan of bleeding; Particulate filter is installed in the upper reaches of the blower fan of bleeding, and is used for filtering extracting the particle that gas is carried secretly out; And harmful gas filter, being arranged on and bleeding between blower fan and the air-introduced machine, it receives the signal from the gas componant controller, carries out operation accordingly.After the reaction of landfill yard aerobe, the reacting gas of extraction is mainly carbon dioxide and steam, but still has gases such as a small amount of volatile organic matter, hydrogen sulfide, and harmful gas filter can be removed these gases, makes exhaust reach the safety dumping requirement.
In the comparatively moistening area of weather, areas to the south, for example Chinese the Changjiang river, the humidity of junk-heap body is generally more than 35%.In this case, need not to control the humidity of junk-heap body.In the comparatively dry area of weather, to the north of the for example Chinese the Changjiang river area, and good cure of the present invention is managed system can comprise flood pattern, and this flood pattern comprises percolate circulating pump and water injector.The percolate circulating pump is located in the extraction well, is communicated to water injector, and it is no electrically driven (operated) air driven pump.In this embodiment, realize the recycle of percolate through flood pattern, thereby saved the innocent treatment procedure that carries out for the percolate discharging.
When good cure reason of the present invention system was used for dry area, flood pattern further comprised water injection well, filling pipe and water injecting pump.Water injection well is laid in the junk-heap body, wherein also is provided with the percolate circulating pump; Filling pipe is communicated in the water injection well; Water injecting pump supplies water to water injection well through filling pipe.When percolate was not enough to keep junk-heap body in suitable humidity, water injecting pump can be transported to extra water in the junk-heap body through filling pipe and water injection well from collecting-tank.
When flood pattern comprises water injection well, preferably water injection well and extraction well are merged use.In this case, this paper is called the water injection well of bleeding with the water injection well and the extraction well that merge.As replacement, also can water injection well and gas injection well be merged use, in this case, this paper is called the gas injection water injection well with the water injection well and the gas injection well that merge.
In a kind of preferred implementation of the present invention; Be a good cure reason system when comprising flood pattern, above-mentioned monitoring system further comprises the humidity control system, and this humidity control system comprises: a plurality of humidity sensors; Be installed on respectively in the Humidity Detection well; Usually Humidity Detection well and said temperature are detected well merging use, in this case, this paper also should detect well and be called humiture detection well; Humidity controller is used to accept the data from humidity sensor, and with water injecting pump and percolate circulating pump telecommunication, according to the feedback of humidity sensor, the rotating speed of control water injecting pump and percolate circulating pump, adjusting is to the output of junk-heap body; The percolate of extracting out when the percolate circulating pump is when keeping the required amount of liquid of humidity, and unnecessary percolate receives the adjusting of humidity controller and is introduced into collecting-tank.
In preferred implementation of the present invention, gas injection well is divided into some groups, is made up of side by side 1～3 pipe well for every group.The number of every group of pipe well is confirmed by the degree of depth of rubbish surface to former soil layer.When former soil layer buried depth during, a pipe well is set less than 15m; When the degree of depth is 15～20m, be set up in parallel 2 pipe wells, when the degree of depth during, be set up in parallel 3 pipe wells greater than 20m.The layout density of gas injection well is 400～1600m2/ seat, and layout density can be according to the degree of depth adjustment of landfill yard junk-heap body.Per 3～7m installs a temperature sensor, setting pressure table on the well lid in the gas injection well.(typically, pipe well is the floral tube of the about 50mm of diameter, the hole of the about 10mm in aperture that distributing on the wall.
In a kind of specific embodiment, pipe well outsourcing one deck geotextiles is filled with cobblestone between geotextiles and pipe well installing hole (being used to install the deep hole of pipe well in the rubbish heap) wall, is stopped up by rubbish on every side with the hole that prevents floral tube.As replacement, also can be set to double-decker by pipe well, interior pipe is a floral tube, outer tube is a network structure, outer tube butt pipe well installing hole.Leave 10-70mm between interior pipe and the outer tube, the gap of preferred 20-40mm.Extraction well among the present invention, water injection well or the water injection well of bleeding also can adopt this set.
In another kind of optimal way of the present invention; The water injection well and/or the water injection well of bleeding are divided into two kinds of deep-well and shallow wells; Shallow well is laid in rubbish stockyard original soil layer physical features higher position; And temperature sensor is installed, deep-well is laid in original soil layer physical features lower, rubbish stockyard, and temperature sensor is installed and oozes drop liquid circulating pump.Because the bottom of deep-well usually collects the drop of oozing liquid is arranged, this oozes drop liquid and can be temporarily stored in the collecting-tank by oozing outside the drop liquid circulating pump out well, in needs, is sprayed onto the rubbish stockyard again, directly is sprayed onto the rubbish stockyard after perhaps extracting out.
Be used for monitoring system of the present invention and may further include the underground water detection system, the latter further comprise underground water detect well, be located at underground water detect in the well level sensor and with the water level controller of level sensor and percolate circulating pump telecommunication.When the water level in detecting the detection well reached predetermined value, water level controller started the percolate that the percolate circulating pump is extracted respective amount out.In another embodiment, underground water detection well and water injection well or the water injection well of sobbing share.
Preferably, temperature sensor per 3～7m in above-mentioned various wells installs one.
Preferably, be used for temperature controller of the present invention, gas componant controller, humidity controller and/or water level controller and can be integrated in central control room.
The present invention also provides a kind of method of aerobic improvement refuse landfill, may further comprise the steps: to the junk-heap body moisturizing, comprise water injection well with a flood pattern in the flood pattern; Replenish air with a gas injection system to junk-heap body, comprise gas injection well in the gas injection system; Extract the reaction gas (solid waste gas) in the junk-heap body out with extract system, comprise extraction well in the extract system; And with particle and pernicious gas in the filtering emission system removal extraction gas; Be controlled between 30～60 ℃ with the temperature of monitoring system with junk-heap body, humidity should be controlled between 35%～55%, and oxygen content should be controlled between 6%～15%.
A kind of optimal way of this method is water injection well and gas injection well to be share be the water injection well of bleeding.Further; The water injection well of bleeding is divided into deep well and shallow well, and the percolate circulating pump is set in deep well, oozes drop liquid circulating pump through this and extracts and be sprayed onto percolate out the junk-heap body surface; When percolate is not enough, through shallow well and/or the outer water of deep well supplementary quota.
System and method of the present invention is through the variation of the temperature in the heap body of detection improvement zone, humidity, gas componant; Regulate and control the content of air inlet, exhaust, moisture; Make the interior labile organic compound of heap body under suitable oxygen content, temperature, damp condition, remain at the aerobe reactiveness an of the best, degrade fast.Run duration junk-heap body temperature should be controlled between 30～60 ℃, and humidity should be controlled between 35%～55%, and oxygen content should be controlled between 6%～15%.
The present invention can be used for the improvement engineering to informal landfill yard, also can be used for newly-built and at the sanitary filling field of building, through recycle with handle the service life that prolongs landfill yard greatly.The major advantage that aerobe is administered technology is:
1, need recharge the consumption percolate in a large number because aerobe is handled landfill yard, need not handle, therefore can save percolate treatment facility investment cost significantly;
2, because aerobe processing landfill yard garbage degradation stabilized speed is fast, its maintenance phase only needs 2～3 years, can significantly save the closing maintenance cost, equals to reduce the total cost of whole useful life period.
3, the completion because aerobe processing back landfill yard organic matter is degraded basically; Therefore percolate generation and concentration also significantly reduce; Significantly reduce operation and close during to the potential secondary pollution risk of underground water, and because stink and the environmental air pollution that the gas of methane is overflowed and caused; The landfill yard periphery stink control of also having avoided each landfill yard of the present whole nation generally to face drops into a difficult problem high, weak effect, has significantly saved improvement stink investment cost simultaneously.
Description of drawings
Fig. 1 is the process chart of an exemplary embodiments of the aerobic governing system of refuse landfill of the present invention, and wherein FI representes gas flowmeter, and PIC representes remote pressure gauge, and PG representes Pressure gauge.
The specific embodiment
An instantiation of good cure reason of the present invention system is described below in conjunction with Fig. 1.In order to make accompanying drawing more concisely readable, the label in the accompanying drawing perhaps is labeled within the corresponding component, perhaps marks near corresponding component.
As shown in Figure 1, the aerobic governing system of this refuse landfill comprises gas injection system, flood pattern, extract system, filtering emission system and monitoring system.Gas injection system comprises gas injection well 11, gas injecting pipe 12 and the gas injection blower fan 13 that is arranged in the rubbish stockyard 1, and gas injection blower fan 13 and control cabinet 47 realized being electrically connected, make air through heat exchanger 14 heat exchanges after through pipeline 12 inflow gas injection wells 11.One group of gas injection well shown in Fig. 1 comprises two gas injection wells, a deep-well and a shallow well.In same soot, the well number in the gas injection well group can be not unique, can adjust according to the thickness of sanitary fill.At some places can be one, can be deep mixed three at some places.
Extract system comprises a plurality of water injection wells 54 of bleeding, a plurality of pump-line 22, moisture trap 25 and the blower fan 23 of bleeding.Moisture trap 25 is used for isolating the moisture of extracting gas out, with the blower fan 23 of bleeding of protection back.At moisture trap 25 with bleed and also be provided with filter 43 between the blower fan 23, the solid particle in this filter filtering air-flow.Connect remote pressure gauge PIC, temperature controller TIC, harmful gas filter 44 and air-introduced machine 41 successively in the downstream of the blower fan 23 of bleeding.Here the blower fan 23 of bleeding, air-introduced machine 41 and harmful gas filter 44 also are electrically connected to control cabinet 47.
Flood pattern comprises the water injection well 54 of bleeding, filling pipe 52, water injecting pump 53, the water injector of being located at the percolate circulating pump 51 in the water injection well 54 of bleeding and being located at the face of land.In the present embodiment, this water injector is the water supply transverse tube 56 that is embedded in the face of land, and it will be from the shallow-layer in aqueous dispersion to the rubbish stockyard of collecting-tank 55.Two kinds of water injection wells 54 of bleeding have been used in the present embodiment, i.e. deep-well 541 and shallow well 542.In deep-well 541, installed and oozed drop liquid circulating pump 51, this oozes drop liquid circulating pump 51 is air driven pumps, when work, drives with portable air compressor 57.When the water level in deep-well 541 reaches predetermined altitude, can start portable pneumatics pump 57, will ooze drop liquid and be evacuated in the collecting-tank 55, perhaps directly be dispersed to the stockyard shallow-layer through transverse tube 56.Like this, can realize oozing the recycle of drop liquid, will it not enter environment, save the link of harmless treatment.At the less environment of rainwater,, can be transported in transverse tube 56 and the water injection well 54 with water injecting pump 53 by extra water when relying on when oozing drop liquid and being not enough to keep desired moisture level.
Monitoring system comprises that temperature monitoring system, gas componant detection system, humidity control system and underground water detect well, and wherein, temperature monitoring system comprises temperature sensor 31 and temperature controller 33.The humiture that temperature sensor 31 is installed on the water injection well 54 of bleeding, gas injection well 31 and setting in addition detects in the well 32; Be located at the outer temperature recorder (not shown) of well and note the temperature data that temperature sensor 31 transmits; This transfer of data is to central control room 39; Central control room is electrically connected to temperature controller 33; The latter controls gas injection blower fan 13 and/or the blower fan 23 of bleeding, and regulates the speed of the gas injection blower fan 13 and/or the blower fan 23 of bleeding.The Humidity Detection system comprises humidity sensor 37.Be located at the outer humidity temperature recorder (not shown) of well and note the humidity data that humidity sensor 37 transmits; This transfer of data is to central control room 39; Central control room is electrically connected to water injecting pump 53 and/or mobile pneumatics pump 57; The latter controls the speed of water injecting pump 53 and/or mobile pneumatics pump 57, reaches the purpose of regulating humidity, can control junk-heap body humidity 35%～55%.The gas componant detection system comprises pernicious gas gas detecting well 35, is communicated to the spot sampling point 34 of gas detecting well 35, the detector of being located at spot sampling point, gas componant register are write down information, this information that detector obtains and transferred to central control room 39; 43 operations of central control room 39 control harmful gas filters are with the harmful gas concentration of control discharge gas.The pernicious gas gas detecting well 35 that the degree of depth shown in the figure is different.Detector also can be placed on pernicious gas and detect in the well 35.
The system of present embodiment is used for a refuse landfill of taking up an area of 6.4675 hectares, and landfill waste surpasses 850,000 tons, more than 20 meter of the maximum landfill degree of depth, 4～5 meters of the minimum landfill degree of depth.Adopt the aerobe reaction to administer this landfill yard; Evenly lay 46 of the water injection wells of bleeding at this landfill yard, totally 9 of its middle-deep wells, interior installation pneumatic type is oozed drop liquid circulating pump; When water level reaches high water level in the well; Automatically open and ooze drop liquid circulating pump, extract out, be sprayed on landfill yard heap surface oozing drop liquid in the well.If totally 37 of shallow wells.Bleed/the water injection well depth of burying is an extremely former soil layer of junk-heap body surface, average buried depth is 10m.The water injection well of bleeding is interior buries one of temperature sensor underground along the every 5m of depth direction, setting pressure table on the well lid.Lay exhaust pipe on the landfill yard surface, link and bleed/water injection well and the blower fan of bleeding, the gas of the discharge of the blower fan of bleeding is discharged through discharge filter.Draw water pipe from collecting-tank, through supply-water pump to bleeding/the water injection well moisturizing.
Evenly lay 40 of gas injection wells at landfill yard, gas injection well is that 2 pipe wells are formed side by side.The mean depth of gas injection well is 10 meters.The gas injection pipeline is laid on the landfill yard surface, connects gas injection well and gas injection blower fan.In every 5m bury one of temperature sensor underground, setting pressure table on the well lid.
Lay the solid waste gas humiture at landfill yard and detect 11 in well, 2 temperature sensors and 1 humidity sensor are set in every mouthful of well.
Lay solid waste gas at landfill yard and detect 6 in well, place one of detector in the well.
According to standard GB 16889-2008 " consumer waste filling and embedding pollution control criterion " requirement, 6 of groundwater observation wells are set.
During the aerobic improvement of landfill yard, oxygen content is between 6%～15% in the control junk-heap body, and control junk-heap body humidity is between 35%～55%, and control junk-heap body temperature is at 30～60 ℃.
After 21 months processing, this landfill yard rubbish reaches stable state basically.Content of organics is reduced to 4% by 93%.
Should be appreciated that those skilled in the art can be under the situation that does not deviate from scope of the present invention and spirit, any change that the above-mentioned specific embodiment is carried out or revise still within protection domain of the present invention.
Claims (18)
1. the aerobic governing system of refuse landfill is characterized in that, comprising:
Gas injection system comprises:
A plurality of gas injection wells (11) are laid in the junk-heap body (1),
A plurality of gas injecting pipes 12 are communicated to said gas injection (11) well, and
Gas injection blower fan (13) is connected to said gas injecting pipe (12), with to said gas injection well (11) air feed;
Extract system comprises:
A plurality of extraction wells (54) are laid in the junk-heap body (1),
A plurality of pump-lines (22) are communicated to said extraction well (54), and
The blower fan (23) of bleeding is connected to said pump-line (22), in junk-heap body, to extract reacted gas out;
The filtering emission system is located at said extract system downstream, is used for removing the particle and the pernicious gas of emission gases;
Monitoring system comprises:
Temperature monitoring system comprises: a plurality of temperature sensors (31) are installed on respectively in the temperature detection well (32) of said extraction well (54), gas injection well (31) and setting in addition; Temperature controller (33), it accepts the data from said temperature sensor (31), and with said gas injection blower fan (13) telecommunication, the speed that is used to regulate said gas injection blower fan;
The gas componant detection system is used for detecting the composition of the gas of said refuse landfill, and with said filtering emission system telecommunication.
2. the aerobic governing system of refuse landfill according to claim 1, said gas componant detection system comprises:
Gas detecting well (35) is laid in the junk-heap body (1);
Gas sampling point (34) is connected with said gas detecting well, and detector is arranged in the said spot sampling point (34);
The gas componant register writes down the data that said detector obtains; And
The gas componant controller accepts to become from gas the data of register, and with said filtering emission system telecommunication.
3. the aerobic governing system of refuse landfill according to claim 1 further comprises flood pattern, and said flood pattern comprises:
Water injection well is laid in the junk-heap body (1);
Filling pipe (52) is communicated in the said water injection well,
Water injecting pump (53) supplies water to said water injection well through said filling pipe.
4. the aerobic governing system of refuse landfill according to claim 3, wherein, said water injection well and said extraction well are merged into the water injection well of bleeding (54).
5. the aerobic governing system of refuse landfill according to claim 4, said flood pattern further comprises:
Percolate circulating pump (51) is located in the said water injection well of bleeding (54); And
Water injector (56) is communicated to said percolate circulating pump (51).
6. according to the aerobic governing system of each described refuse landfill of claim 1 to 5, said monitoring system further comprises the humidity control system, and said humidity control system comprises:
A plurality of humidity sensors (37) are installed on respectively in the solid waste gas Humidity Detection well; Humidity controller (39), it accepts the data from said humidity sensor (37), and with said water injecting pump and/or said percolate circulating pump (51) telecommunication.
7. the aerobic governing system of refuse landfill according to claim 6, said Humidity Detection well and temperature detection well are merged into humiture and are detected well (32).
8. the aerobic governing system of refuse landfill according to claim 1, wherein, said gas injection well 11 is that 1～3 pipe well is made as one group, every group of number confirmed by the degree of depth of former soil layer, when former soil layer buried depth during less than 15m, establishes a pipe well for every group; When the degree of depth was 15～20m, every group was provided with 2 pipe wells, and when the degree of depth during greater than 20m, every group is provided with 3 pipe wells, and the layout density of gas injection well group is 400～1600m
2/ group, per 3～7m installs a said temperature sensor 31 in the gas injection well.
9. the aerobic governing system of refuse landfill according to claim 4; Wherein, The said water injection well of bleeding (54) is divided into (542) two kinds of deep-well (541) and shallow wells, and shallow well (542) is laid in rubbish stockyard original soil layer physical features higher position, and said temperature sensor (31) is installed; Deep-well (541) is laid in original soil layer physical features lower, rubbish stockyard, and said temperature sensor (31) is installed and oozes drop liquid circulating pump.
10. according to claim 1 or the aerobic governing system of 6 described refuse landfills; Wherein, Said monitoring system further comprises the underground water detection system, the latter further comprise underground water detect well, be located at underground water detect in the well level sensor and with the water level controller of said level sensor and said percolate circulating pump telecommunication.
11. the aerobic governing system of refuse landfill according to claim 6, wherein, per 3～7m installs a temperature sensor in said bleeding/water injection well.
12. the aerobic governing system of refuse landfill according to claim 9, wherein, said temperature controller, gas componant controller, humidity controller and/or water level controller are integrated in central control room (39).
13. the aerobic governing system of refuse landfill according to claim 1, wherein, said filtering emission system comprises:
Air-introduced machine (41) is installed in the downstream of the said blower fan of bleeding (23),
Particulate filter (43) is installed in the upper reaches of the said blower fan of bleeding (23), is used for filtering extracting the particle that gas is carried secretly out, and
Harmful gas filter (44) is arranged between said blower fan of bleeding (23) and the said air-introduced machine (41).
14. the aerobic governing system of refuse landfill according to claim 13 further comprises moisture trap (25), is arranged on the upper reaches of said particulate filter (43).
15. the aerobic governing system of refuse landfill according to claim 13 also comprises collecting-tank or sump (55).
16. the method for an aerobic improvement refuse landfill is characterized in that may further comprise the steps:
To the junk-heap body moisturizing, comprise water injection well with a flood pattern in the flood pattern;
Be used for gas injection system and replenish air, comprise gas injection well in the gas injection system to junk-heap body;
Extract the reaction gas in the junk-heap body out with extract system, comprise extraction well in the extract system; And
Remove particle and the pernicious gas of extracting out in the gas with the filtering emission system;
Should be controlled between 30～60 ℃ with the temperature of monitoring system with junk-heap body, humidity should be controlled between 35%～55%, and oxygen content should be controlled between 6%～15%.
17. method according to claim 16 wherein, is share said water injection well and said gas injection well and is the water injection well of bleeding.
18. method according to claim 17; Wherein, The said water injection well of bleeding is divided into deep well and shallow well, and the percolate circulating pump is set in deep well, oozes drop liquid circulating pump through this and extracts and be sprayed onto percolate out the junk-heap body surface; When percolate is not enough, through said shallow well and/or the outer water of deep well supplementary quota.
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