CN1785846A - Method of proceeding percolate treatment using ventilation buring layer - Google Patents
Method of proceeding percolate treatment using ventilation buring layer Download PDFInfo
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- CN1785846A CN1785846A CNA2005100310189A CN200510031018A CN1785846A CN 1785846 A CN1785846 A CN 1785846A CN A2005100310189 A CNA2005100310189 A CN A2005100310189A CN 200510031018 A CN200510031018 A CN 200510031018A CN 1785846 A CN1785846 A CN 1785846A
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Abstract
The present invention relates to a method for making percolation liquor treatment by utilizing draught landfill layer, in particular, it relates to a method for treating percolation liquor produced in urban domestic refuse landfill yard. It is characterized by that said invention adopts the following main measures: creating special-purpose draught landfill unit to make forced draught, forming aerobic, anoxybiotic and anaerobic environmental condition to produce microbial pool in landfill layer, promoting metabolism of microbial pool to remove oxygen consumption organics in the percolation liquor, and utilizing nitrification and denitrification reaction to remove ammonia nitrogen in the percolation liquor. The COD of treated outlet water is less than 1g/L and ammonia nitrogen content is less than 0.005g/L.
Description
Technical field
The present invention relates to a kind of leachate processing method of domestic waste landfill.
Background technology
Landfill is the domestic refuse disposal technology that is most widely used, and percolate is the topmost secondary pollutant that produces in its treating processes.These consumer waste filling and embedding percolates mainly are oxygen consumption organic matter and ammonia nitrogen.Traditional treatment process is: behind the consumer waste filling and embedding leachate collection, at external processing of landfill heap (' Landfill leachate treatment. ' Keenan J.D., R.L.Steiner, and A.A.Fungaroli.Journal of the Water Pollution Control Federation 56,27-33,1984), but the cost of handling is very high.Bio-reactor landfill (Bioreactor landfill) technology, developed aforesaid method, it is to utilize landfill heap body as bio-reactor, piling intravital circulation by percolate at landfill makes percolate be purified (' Landfill bioreactor:historical perspective, fundamental principles, and newhorizons in design and operations ' .Pohland, F.G., 1995.In Landfill Bioreactor Designand Operation Sem.Proc., EPA/600/R-95/146,9-24), but because common landfill is piled intravital metabolism environment is anaerobic, therefore this mode can only purify the oxygen consumption organic matter, and can not purify ammonia nitrogen.People such as Price (' Nitrogen management in bioreactor landfills ' Price, G.A., M.A.Barlaz, and G.R.Hater, 2003.Waste Management 23,675-688.) percolate is nitrated at landfill heap external biological earlier, the percolate circulated backfilling that will contain nitrate nitrogen then is to landfill heap body, utilize landfill to pile intravital anoxia condition and make of the percolate denitrogenation of nitrate nitrogen denitrification for nitrogen, but this method still need be piled the nitrated device of external traditional biological by landfill and be finished denitrogenation processing to ammonia nitrogen in the percolate, makes the circulated backfilling treatment technology of percolate complicated.
Summary of the invention
The purpose of this invention is to provide the simple leachate processing method of a kind of technology, method of the present invention can be handled two kinds of principal pollutant in the percolate simultaneously: oxygen consumption organic matter and ammonia nitrogen.
In order to achieve the above object, the present invention utilizes the ammonia nitrogen in the biological denitrificaion principle removal percolate, and this principle comprises by the oxidation to ammonia nitrogen under aerobic condition of nitrosification and nitrobacteria, and the nitre attitude that produces of ammonia nitrogen oxidation and nitrite nitrogen are reduced to these two basic steps of nitrogen by denitrifying bacterium under anoxia condition.And these two steps must be finished under different oxygen environment (aerobic and anoxic or anaerobism) condition, and therefore, the basic fundamental problem that the present invention solves is to form in landfill heap body that alternative is aerobic to satisfy the biological denitrificaion needs with anoxic (or anaerobism) environment.Forming aerobic and the key problem in technology anoxic alternate environment then is that landfill is piled intravital draft type and Ventilation Control condition.Because ventilating, landfill heap body has certain technical complexity (increasing facility and investment), from the Technological Economy consideration, need be with in the certain limit of Ventilation Control in landfill yard, and thus, technical scheme of the present invention is as follows:
The first step, special-purpose landfill unit is set in landfill yard: this landfill unit is provided with the impervious barrier identical with the landfill yard other parts, and leachate collection layer and the percolate storage pond separate with the waterpower of landfill yard other parts.
In second step, at this special use landfill unit the forced ventilation facility is set: the forced ventilation facility is by being layed in the ventilation pipe network on the unit leachate collection layer and forming for the gas blower of ventilation pipe network air feed.
In the 3rd step, landfill domestic refuse in special cell: the garbage loading embeading degree of depth should be less than 6m in the unit, general 3～6m.Be the influence of the organism avoiding discharging in the biodegradation process in the domestic refuse and ammonia nitrogen to the percolate treating processes, the rubbish of landfill should preferentially select in other parts of landfill yard or other landfill yards landfill more than 3 years, through the basicly stable rubbish of biological degradation in this unit.
If in the practical application, can't obtain to meet the rubbish of above-mentioned requirements, or it is too high because of gathering transportation cost, should not use this type of rubbish, also can directly insert fresh domestic refuse, but need the rubbish of inserting is made the accelerated degradation stabilization treatment, concrete working method is: 1) leachate collection that this unit is discharged is to unitary independent storage pond; 2) with the percolate in the storage pond, by unitary cross section, water yield load 30L/m
2D divides 2 circulations every day, half water yield at every turn, by the leachate recirculation pump delivery to unit water distribution pipe network (referring to following the 4th step), at the unit internal recycle; 3) with the percolate circulation while, carry out 2 time forced ventilation to it every day, and each ventilation is counted 4～6m by unitary cross section
3/ m
2, each ventilation time is not more than 1 hour; 4) the accelerated degradation stabilization is operated in the storage pond leachate quality and reaches COD simultaneously and end during less than 300mg/L less than 3000mg/L and ammonia nitrogen.
The 4th step, percolate circulated backfilling water distribution layer is set: at landfill on the landfill waste layer, and do on the landfill waste face after smooth, the percolate circulated backfilling water distribution pipe network that laying is made up of main and arm, the main of water distribution pipe network is connected with the leachate recirculation pump, so that the condition to pipe network water supply to be provided, the space between pipe network should be filled up with graded broken stone, also leveling.
The 5th step, this unit is carried out resistance to air loss to be covered: resistance to air loss covers and adopts synthetic geomembrane, the synthetic geomembrane of covering and the synthetic geomembrane of this unitary impervious barrier are welded to connect, the realization resistance to air loss covers, but cover on the synthetic geomembrane and leave the effuser interface, the gas (generation gas) that produces with biological degradation in the lead-out unit in an organized way.Cover on the synthetic geomembrane and add earthing protected.
In the 6th step, generate the control of gas in the unit: each the effuser interface after the unit covers is communicated with gas gathering manifold, and house steward's opened upper end generates gas and passes through the effuser interface concentration to gas gathering manifold, in the place's exhaust of house steward's opened upper end.Exhaust place absolute altitude should be more than the projecting ground 10m.Methane gas detector and gas burner are set in the house steward.Detector continues to monitor the methane volume ratio of the gas that enters house steward, greater than 15%, promptly outputs signal to controller as methane volume fraction in the gas, and controller auto-ignition combustion device to be to burn the methane in the gas, makes to discharge gas and can not cause blast.Less than 15%, then need not to start burner as the methane volume fraction in the gas, dilute its explosion hazard of may command naturally by the atmosphere behind the gaseous emission.
The 7th step, percolate is handled operation: the special cell of finishing above-mentioned steps possessed handle percolate, purify wherein organism and the ability of ammonia nitrogen, concrete processing is operating as: 1) water distribution, draw percolate from the total storage pond of landfill yard, every day 2 times is at every turn in by this cell cross-section 10～20L/m
2The water yield load of d is delivered to this unit water distribution pipe network and handles; 2) ventilate, every day 2 times is at every turn in by this cell cross-section 4～6m
3/ m
2Tolerance the unit is carried out forced ventilation.This operation makes and exists aerobicly in the waste layer simultaneously, and the oxygen consumption organic matter in the percolate is recharged in facultative and anaerobic biological metabolism activity, and ammonia nitrogen and organonitrogen all can effectively be removed.
Outstanding effect of the present invention is as follows:
1. the present invention utilizes recharge method to purify the main magnanimity pollutent of two classes in the percolate simultaneously: oxygen consumption organic matter (COD) and ammonia nitrogen (treat effluent COD less than 1g/L, ammonia nitrogen less than 0.005g/L).
2. by optimization to landfill layer draft type, aerobic, the anoxic, the anaerobic environment condition that form sequential in the landfill layer alternately change, this envrionment conditions with recharge the mobile time-delay feature of percolate in layer and combine, make the present invention in same landfill layer, make nitrification and denitrification, realize complete denitrification process ammonia nitrogen.
3. the ventilation of the landfill layer of handling percolate has been done effective control, can be with the landfill layer under the existing landfill process condition ventilative condition compatibility, need not existing landfill process is carried out special transformation, make implementation cost controlled.
4. utilize special-purpose landfill unit to handle the percolate that whole landfill yard produces, avoided whole landfill yard is done the ventilation equipment construction, both reduced implementation cost, also improved the feasibility of technology implementation.
Description of drawings
Fig. 1 is a process principle figure of the present invention
Fig. 2 is the cross-sectional view of ventilation landfill layer of the present invention
Label declaration in the accompanying drawing is as follows:
1-landfill yard base soil layer; 2-underground water lead layer; The water seal of 3-U shape; Clay seam under the 4-anti seepage membrane; The 5-HDPE anti seepage membrane; 6-anti seepage membrane protective layer; 7-percolate lead layer; 8-ventilation cloth gas-bearing formation; The 9-waste layer; 10-recharges water distribution layer; 11-covers sealer coat; 12-leachate recirculation pump; 13-generates the gas collection tube; The 14-person in charge of ventilating; The 15-gas blower.
Embodiment
The present invention is respectively newly-built and built in the landfill yard of usefulness and implemented.
Embodiment 1
Implementation method in newly-built landfill yard is as follows:
In the-step, selecting the first landfill unit in the landfill district is airy special use percolate processing unit, and this unitary effective landfill degree of depth should be greater than 3m, but should not be greater than 6m; The unitary area of plane (S) is with the maximum annual average (V that produces the time of the diafiltration liquid measure of this landfill yard expection
Max) determine that the relationship of the two is V
Max/ S=0.02～0.04.
The special-purpose percolate processing unit area of plane is less than 4000m
2The time, need not subregion in the unit, if the total area is greater than 4000m
2The time, then need the unit is carried out subregion, but each sectional area should not be less than 2000m
2Sectional implication is: the earth dam that covers with the waterproof cushioning material between the different subregions is separated, and the percolate in each district is independently collected and recharged, and ventilation and gas collection piping equally should be separate.
Special-purpose percolate processing unit is built set up procedure: at first, to the reservoir area of newly-built landfill yard by the routine of sanitary filling field construction carry out clearly the storehouse, the bottom is smooth and the side slope finishing.Then, build the landfill percolate storage pond, storage pond should be divided into the waterpower two independent parts, respectively as always regulate and store district and the percolate processing unit of the landfill yard district that regulates and stores.The percolate processing unit regulate and store the district capacity be not less than above-mentioned V
Max3 times, the capacity in the district that always regulates and stores sanitary filling field method of design is routinely determined, can carry out the construction of special-purpose percolate processing unit.
Second step, the construction of special-purpose percolate processing unit: referring to accompanying drawing 2 ventilation landfill layer cross-section structure.At first, by the sanitary filling field construction requirements underground water lead layer 2 is set, the underground water discharge guiding pipe is set in lead layer 2, and insert the rainwash discharge system of landfill yard in the unit bottom of planning to build.Then clay seam 4 under the anti seepage membrane is being set on the underground water lead layer 2, is guaranteeing that the synthetic film of laying on it (normally high density polyethylene material) has rational hydraulic gradient, simultaneously, should reach other HDPE film job specifications requirements., promptly by standard lay HDPE anti seepage membrane 5, on film, establish anti seepage membrane protective layer 6 (clay or geotextile) again, lay percolate lead layer 7 (being generally cobble or rubble) on the protective layer 6, bury percolate discharge guiding pipe underground in the layer thereafter.Above construction step and parameter request thereof all can be implemented with reference to existing sanitary filling field construction criteria, and following construction step is then by the unitary functional requirement decision of this special-purpose landfill disposal.
One. the U-shaped water seal 3 of percolate guide house steward by being not less than 500mm inserted percolate processing unit in the landfill percolate storage ponds district that regulates and stores.
Two. lay ventilation cloth gas-bearing formation 8 on percolate lead layer 7, ventilation cloth gas-bearing formation 8 is formed by the ventilation pipe network with to its filling rubble that plays the covering provide protection.The ventilation pipe network comprises main and arm, and ventilation that each unit subregion is established is responsible for 14 and is connect mutually with centrifugal blower 15, and gas blower discharge pressure of fan under the air feed flow is not less than 2500Pa.Main and arm quadrature connect in the unit; spacing 5-10m between pipe; not perforate of main; only play the gas delivery effect; the arm perforate will feed air-flow and be released into the landfill layer; the arm perforate scheme of optimizing is a upper half with 5～10% percentage of open area, 5～20mm aperture; offer uniform hole; lower half is then only offered the single row of holes of aperture 10-20mm at bottom interval 500mm; the rubble diameter that covers the ventilation pipe network is the gradating material of 5-20mm, has the metalling protection of 10cm on the pipeline top of cladding thickness assurance diameter maximum at least.
The 3rd step, insert rubbish, be the protection ventilation tubing.When inserting rubbish thickness less than 2m, only once smooth to the rubbish work with dozer, do not roll; When inserting rubbish thickness, do also can to do 2-3 time rolling with dozer to waste layer 9 again outside the once leveling, non-uniform settling being done certain control, but should not use steel wheel formula compactor to carry out compacting operation divided by dozer greater than 2m.Other links of rubbish operation are similar to conventional sanitary landfill, and landfill is ended when the specified waste layer thickness in this unit, forms waste layer 9 with this.
In the 4th step, lay and recharge water distribution layer 10.Waste layer 9 surfaces are carried out smooth after, at first lay thick middle coarse grain footpath (1～4mm) the building sand of one deck 200mm, then, on layer of sand, lay and recharge the water distribution pipe network, pipe network is made up of main and arm, each unit subregion is established main and is located at leachate recirculation pump 12 connections that landfill yard is is always regulated and stored and distinguished, to pipe network water supply.Main and arm quadrature connect, tube spacing 5-10m.Not perforate of main, water distribution is recharged in the arm perforate.The perforate scheme is: not perforate of upper half, lower half is with 8% percentage of open area, the hole of uniform diameter 5-15mm.Directly be arranged at the bottom of the water distributor webmaster on the waste layer, the space covers with particle diameter 6-30mm rubble between pipe, has the metalling protection of 10cm on the pipeline top of cladding thickness assurance diameter maximum at least.
In the 5th step, the special cell resistance to air loss covers to be handled.At first cover sealer coat 11 to finishing the unit subregion that recharges water distribution layer 10 layings, be from the bottom to top: orlop 400g/m2 geotextile is 1mm on it
Thick new LDPE (film grade) (LDPE) film, going up is 200g/m again
2Geotextile, be the thick compacting clay of 0.3m then, be the thick rubble water guide layer (10-30mm size grading) of 0.1m on.For the situation that still need carry out garbage loading embeading on this unit, can make conventional landfill operation on the water guide layer, for the situation that does not remake landfill (being final covering) on this unit, should construct that requirement carries out that farming (nutrition) soil covers again and vegetation is cultivated and answers by the final tectum of sanitary landfill on the water guide layer.With covering hold one's breath the layer 11 gas directing system that matches mainly form by vertically arranged unit airway and gas treatment equipment thereafter, the unit airway covers on the layer 11 of holding one's breath in the unit with square net shape uniform distribution (tube spacing 20-30m), about 10cm in the rubble tectum that recharges water distribution layer 10 is inserted in the lower end, pipe material is HDPE, diameter 10-20cm, pipeline and LDPE film confluce seal with welding process.It is relevant whether to carry out landfill on the length of airway and the unit coverage rate again, the continuation landfill, each vertical unit airway should be in aforesaid compacting clay seam with level to air guide collect arm and link, arm connects with the air guide main after drawing the landfill layer, finally inserts gas treatment equipment; Do not continue landfill, each vertical airway extends upwardly on the final coverage rate, and then links with the air-guide branch pipe and the main of level, equally gas is caused gas treatment equipment-generation gas collection tube 13.
In the 6th step, gas processing: gas treatment equipment is the vertical row inflator of diameter 0.5-1m, the discrepancy in elevation 〉=10m on the tube top and the ground of installing; Gas in the airway by air compressor machine by the gaseous combustion nozzle in tube bottom is introduced tube, establish the gas concentration monitoring point before the burner noz(zle), the methane concentration in the on-line monitoring gas, when the methane volumetric concentration less than 15% the time, direct emission gases; The methane volumetric concentration was greater than 15% o'clock, and an auxiliary fuel burner of establishing in addition at the bottom of the open end can is lighted gas automatically, discharges after the burning again.The construction of special-purpose leachate recirculation processing unit, landfill, covering and gas air guide and treatment unit should carry out the acceleration stabilization operation of new refuse in the unit after setting completed.
The acceleration stabilization of new refuse operation in the unit: to unit in recharge 2 time percolate from the percolate processing unit district that regulates and stores every day, recharges the water yield each 10-20L/m that loads
2Simultaneously, every day 2 times is carried out forced ventilation to the unit, and each ventilation is 4～6m
3/ (m
2But each ventilation time is no more than 1 hour the unit horizontal sectional area); During this time, the processing unit district that regulates and stores, do not efflux percolate in principle, discharge the COD of percolate less than 3000mg/L to the unit, ammonia nitrogen is during less than 300mg/L, promptly represent in the unit rubbish basicly stableization, the treatment stage that the unit can entering normal percolate, be used to handle the percolate that other parts of landfill yard produce.
In the 7th step, normal percolate is handled operation: every day 2 times is is always regulated and stored the district to this unit from percolate, by each 10-20L/m
2Water yield load recharge percolate; Simultaneously every day 2 times, each time is no more than 1 hour, feeds 4～6m to the unit
3/ m
2Air.The percolate of handling discharge in the unit, back directly enters municipal sewage pipe network by the processing unit district that regulates and stores, or further to enter surface water body after the physical chemistry method advanced treatment.
In the implementation method of building in the landfill yard:
At first tackle storage pond and separate or reconstruct, the formation capacity reaches that always regulating and storing of requirement (concrete identical with embodiment 1) distinguished and processing unit is regulated and stored district.Then, construct special-purpose ventilation processing unit, be arranged in the field as yet the not zone of landfill as the unit, then embodiment 1-causes in its construction mode and the aforesaid newly-built landfill yard, only when inserting rubbish, should insert this element again with after the stale garbage of landfill more than 3 years dug out in the field, can need not like this rubbish in this unit is done the acceleration stabilization treatment, handle an interior percolate that produces and can be directly used in; Must be arranged in the field on the waste layer of landfill as the unit, then except on waste layer, laying the graded broken stone (5-15mm) of 1 bed thickness 0.1m, replace aforesaid underground water lead layer 2, and in the unit, insert simultaneously outside the rubbish of landfill more than 3 years, all the other all with embodiment in new landfill yard, promptly embodiment 1 is identical.
Claims (4)
1. utilize ventilation landfill layer to carry out the method that percolate is handled, it is characterized in that:
The first step, special-purpose landfill unit is set in landfill yard: this landfill unit is provided with impervious barrier, leachate collection layer and percolate storage pond; The waterpower of leachate collection layer and percolate storage pond and landfill yard other parts is separate;
In second step, at this special-purpose landfill unit the forced ventilation facility is set: the forced ventilation facility is by being layed in the ventilation pipe network on the unit leachate collection layer and forming for the gas blower of ventilation pipe network air feed;
The 3rd step, landfill domestic refuse in special cell: the garbage loading embeading degree of depth 3～6m in the unit; The preferential landfill of selecting in other parts of landfill yard or other landfill yards of the rubbish of landfill is more than 3 years in this unit, through the basicly stable rubbish of biological degradation, or after inserting fresh domestic refuse, and accelerated degradation stabilizing treatment again;
The 4th step, percolate circulated backfilling water distribution layer is set: at landfill on the landfill waste layer, and do on the landfill waste face after smooth, the percolate circulated backfilling water distribution pipe network that laying is made up of main and arm, the main of water distribution pipe network is connected with the leachate recirculation pump, so that the condition to pipe network water supply to be provided, the space between pipe network should be filled up with graded broken stone, also leveling;
The 5th goes on foot, and this unit is carried out resistance to air loss cover: resistance to air loss covers and adopts synthetic geomembrane, and the synthetic geomembrane that will cover after covering is finished is welded to connect with the synthetic geomembrane of this unitary impervious barrier; Leave the effuser interface on the synthetic geomembrane that covers, with the gas of biological degradation generation in the lead-out unit; Add earthing protected on the synthetic geomembrane that covers;
The 6th step, the control of the gas that generates in the unit: each the effuser interface after the unit covers is communicated with gas gathering manifold, house steward's opened upper end, gas arrives gas gathering manifold by the effuser interface concentration, in the place's exhaust of house steward's opened upper end, exhaust place absolute altitude should be more than the projecting ground 10m, methane gas detector and gas burner are set in the house steward, detector continues to monitor the methane volume fraction of the gas that enters house steward: the methane volume fraction is greater than 15% in the gas, promptly output signal to controller, controller auto-ignition combustion device makes discharge gas can not cause blast to burn the methane in the gas; Methane volume fraction in the gas then need not to start burner less than 15%, dilutes its explosion hazard of may command naturally by the atmosphere behind the gaseous emission;
The 7th step, percolate is handled operation: the special cell of finishing above-mentioned steps possessed handle percolate, purify wherein organism and the ability of ammonia nitrogen, concrete processing is operating as: 1) water distribution, draw percolate from the total storage pond of landfill yard, every day 2 times is at every turn in by this cell cross-section 10～20L/m
2The water yield load of d is delivered to this unit water distribution pipe network and handles; 2) ventilate, every day 2 times is at every turn in by this cell cross-section 4～6m
3/ m
2Tolerance the unit is carried out forced ventilation.
2. utilization ventilation landfill layer according to claim 1 carries out the method that percolate is handled, it is characterized in that: described second step, when this special use landfill unit is provided with the forced ventilation facility, the gas distribution pipe network is arranged on the percolate lead layer (7), be made up of the main of not perforate and the arm quadrature connection of wall perforate: each arm is arranged in parallel, tube spacing 5-10m, arm upper half wall percentage of open area 5-10%, aperture 5-20mm, lower half then only offer the single row of holes of aperture 10-20mm at bottom interval 500mm; The ventilation that each unit subregion is established is responsible for (14) and is connect mutually with gas blower (15), gas blower discharge pressure of fan under the air feed flow is not less than 2500Pa, when this unit percolate guide house steward inserts corresponding percolate storage pond simultaneously, must be by the water seal layer more than the high 500mm.
3. utilization ventilation landfill layer according to claim 1 carries out the method that percolate is handled, and it is characterized in that: the accelerated degradation stabilization of the new refuse in described the 3rd step: the leachate collection that this unit is discharged is to unitary independent storage pond earlier; Then with the percolate in the storage pond, by unitary cross section, water yield load 30L/m
2D divides 2 circulations, half water yield at every turn every day, by the leachate recirculation pump delivery to unit water distribution pipe network, at the unit internal recycle; With the percolate circulation while, every day, each ventilation was counted 4～6m by unitary cross section to carrying out forced ventilation 2 times
3/ m
2, each ventilation time 0.5～1 hour; The accelerated degradation stabilization is operated in the storage pond leachate quality and reaches COD simultaneously and end during less than 300mg/L less than 3000mg/L and ammonia nitrogen.
4. utilization ventilation landfill layer according to claim 1 carries out the method that percolate is handled, it is characterized in that: the water distribution layer of recharging in described the 4th step is made up of the weighting material of water distribution pipe network and protection pipe network, the water distribution pipe network contains the cloth water conduit tube of not perforate and the water distribution branch pipe of wall perforate, and pipe network is horizontally disposed; Each arm is arranged in parallel, tube spacing 5-10m, and arm perforate scheme is: not perforate of upper half, lower half is with 8% percentage of open area, the hole of uniform diameter 5-15mm.Directly be arranged at the bottom of the water distributor webmaster on the waste layer, the space is filled out with the graded broken stone of particle diameter 6-30mm and is not had between pipe, has the metalling protection of 10cm on the pipeline top of cladding thickness assurance diameter maximum at least.
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| CN101164926B (en) * | 2007-08-17 | 2010-05-26 | 浙江大学 | Domestic garbage landfilling and processing technique with in-situ denitrogenation function and bioreactor |
| CN101879516A (en) * | 2009-05-06 | 2010-11-10 | 中国环境科学研究院 | Improved urban domestic garbage landfilling structure and landfilling treatment method |
| CN102896140A (en) * | 2012-10-25 | 2013-01-30 | 北京中持绿色能源环境技术有限公司 | In-situ biological treating method for municipal solid waste landfill |
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| CN104671862A (en) * | 2015-01-27 | 2015-06-03 | 刘显志 | Percolate collecting device applicable to film type composting fermentation of organic solid waste |
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| US6024513A (en) * | 1996-11-14 | 2000-02-15 | American Technologies Inc | Aerobic landfill bioreactor |
| CN100531942C (en) * | 2004-02-04 | 2009-08-26 | 同济大学 | On-spot treatment method for leachate of landfill field |
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| CN101164926B (en) * | 2007-08-17 | 2010-05-26 | 浙江大学 | Domestic garbage landfilling and processing technique with in-situ denitrogenation function and bioreactor |
| CN101879516A (en) * | 2009-05-06 | 2010-11-10 | 中国环境科学研究院 | Improved urban domestic garbage landfilling structure and landfilling treatment method |
| CN101879516B (en) * | 2009-05-06 | 2014-01-08 | 中国环境科学研究院 | Improved urban domestic garbage landfilling structure and landfilling treatment method |
| CN103758157A (en) * | 2011-12-27 | 2014-04-30 | 杭州中钦环保工程有限公司 | Method for paving HDPE (high-density polyethylene) geomembranes in refuse landfill |
| CN103758157B (en) * | 2011-12-27 | 2016-11-23 | 杭州千禧环保科技有限公司 | The laying method of refuse landfill HDPE geomembrane |
| CN102896140A (en) * | 2012-10-25 | 2013-01-30 | 北京中持绿色能源环境技术有限公司 | In-situ biological treating method for municipal solid waste landfill |
| CN102896140B (en) * | 2012-10-25 | 2015-04-15 | 北京中持绿色能源环境技术有限公司 | In-situ biological treating method for municipal solid waste landfill |
| CN104671862A (en) * | 2015-01-27 | 2015-06-03 | 刘显志 | Percolate collecting device applicable to film type composting fermentation of organic solid waste |
| CN104671862B (en) * | 2015-01-27 | 2018-06-15 | 刘显志 | Suitable for the leachate collecting device of organic solid waste film formula compost fermentation |
| CN104990595A (en) * | 2015-05-13 | 2015-10-21 | 新中天环保股份有限公司 | Hazardous waste safe landfill leachate on-site detection device and method |
| CN111108835A (en) * | 2019-11-27 | 2020-05-08 | 同济大学 | Method for improving low organic soil |
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