CN106077016A - A kind of continuable house refuse quasi-aerobic landfill system and method - Google Patents
A kind of continuable house refuse quasi-aerobic landfill system and method Download PDFInfo
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- CN106077016A CN106077016A CN201610540154.9A CN201610540154A CN106077016A CN 106077016 A CN106077016 A CN 106077016A CN 201610540154 A CN201610540154 A CN 201610540154A CN 106077016 A CN106077016 A CN 106077016A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000002699 waste material Substances 0.000 claims abstract description 110
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 107
- 238000011049 filling Methods 0.000 claims abstract description 105
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000010992 reflux Methods 0.000 claims abstract description 38
- 230000001939 inductive effect Effects 0.000 claims abstract description 14
- 230000003647 oxidation Effects 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 32
- 239000007789 gas Substances 0.000 claims description 28
- 239000002689 soil Substances 0.000 claims description 19
- 238000011068 loading method Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 16
- 239000013502 plastic waste Substances 0.000 claims description 13
- 230000006641 stabilisation Effects 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 238000000354 decomposition reaction Methods 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 8
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- 241000894006 Bacteria Species 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 7
- 239000005416 organic matter Substances 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 5
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- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000000855 fermentation Methods 0.000 claims description 4
- 230000004151 fermentation Effects 0.000 claims description 4
- 238000011026 diafiltration Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims 1
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- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
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- 238000011109 contamination Methods 0.000 description 3
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- 210000004905 finger nail Anatomy 0.000 description 2
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- 239000003473 refuse derived fuel Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
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- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B1/00—Dumping solid waste
- B09B1/004—Covering of dumping sites
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The application belongs to technical field of waste treatment, being specifically related to a kind of continuable house refuse quasi-aerobic landfill system and method, this system includes quasi-aerobic landfill field, inducing QI and leachate collection pipe network, percolate reflux and old rubbish exploitation screening plant；In landfill yard, set at least one landfill district, in landfill district, fill consumer waste filling and embedding layer unit the most successively；Consumer waste filling and embedding layer unit is provided with old rubbish cover layer；The consumer waste filling and embedding layer unit that the percolate that the consumer waste filling and embedding layer unit of less than 2.5 years landfill time produces was recharged to landfill time 2～2.5 years；The backflow of quasi-aerobic landfill, methane oxidation of covering layer and percolate is combined by the application, has acceleration house refuse degraded ageing, realizes buring layer fast and stable and reduce Methane Emissions, the comprehensive effect of reduction Landfill Leachate Pollutants discharge intensity further；The exploitation of old rubbish and recycling, it is achieved that landfill yard capacity and the circulation of waste resources and sustainable use.
Description
Technical field
The application relates to technical field of waste treatment, is specifically related to a kind of continuable house refuse quasi-aerobic landfill system
And method.
Background technology
It is a kind of final disposal skill grown up from traditional stacking and clay treatment method that garbage sanitary filling is disposed
Art, concrete operations condition is on the place being equipped with good barrier performance liner, and solid waste is laid to certain thickness
Thin layer, be compacted and add soil covering.Compared with traditional simple landfill, sanitary landfills is a kind of safety, economically and efficiently solid
The final processing method of body refuse, it is possible to greatly reduce the solid refuse harm for surrounding enviroment.
Garbage loading embeading process, its input is landfill waste and moisture, and output is then percolate and landfill gas, the generation of the two
It is all physics in landfill yard, chemistry and the coefficient result of bioprocess.Landfill gas is a kind of mixed gas, and its composition includes
CH4、CO2、O2、N2、H2With multiple trace gas, main component is then CH4And CO2Etc. important greenhouse gases, wherein stable state
CH in landfill gas4Content accounts for half.
In current garbage loading embeading technology, quasi-aerobic landfill technology is by quasi-aerobic landfill field leachate collection pipe network end
End and atmosphere, msw landfill fermentation produce the temperature difference promotion under, make ambient atmosphere pass through leachate collection system and
Vertical Well enters waste layer, and then makes top layer, quasi-aerobic landfill field, district near collector pipe, around Vertical Well or exhaust facility
Territory has been in oxygen condition, and the buring layer core away from above-mentioned zone is then in anaerobic state, in aerobic and anaerobic zone
Between then form corresponding facultative aerobic region.Therefore, the microorganism in quasi-aerobic landfill field garbage loading embeading body can be passed through
The modes such as oxygen decomposes, anaerobic digestion and facultative aerobic decomposition are degraded the organic component in rubbish.Quasi-aerobic landfill advantage has following
Several respects: 1) significantly reduce the organic contamination substrate concentration in percolate within a short period of time, also phase is measured in the generation of percolate simultaneously
The minimizing answered；2) compared with tradition anaerobism landfill, quasi-aerobic landfill decreases the greenhouse gases CH of more than half4Generation amount；3)
The stabilisation time making landfill waste shortens；4) construction investment and operation composition are relatively low；5) to machinery and the technology of equipment
Level requirement is low.
Summary of the invention
The purpose of the application is to provide a kind of continuable house refuse quasi-aerobic landfill system and method, this system and
The backflow of quasi-aerobic landfill, landfill methane oxidation of covering layer and percolate is combined by method, has many comprehensive
Effect.
The concrete technical scheme of the application is:
The application relates to a kind of continuable house refuse quasi-aerobic landfill system, including:
Quasi-aerobic landfill field, sets at least one landfill district, and at least one landfill described in described quasi-aerobic landfill field
District is arranged side by side along the width in described landfill district, and in described landfill district, landfill has consumer waste filling and embedding floor, described life rubbish
Rubbish buring layer is included on the length direction in described landfill district at least one the consumer waste filling and embedding floor list filled the most successively
Unit；Described consumer waste filling and embedding layer unit is provided with old rubbish cover layer；Described old rubbish cover layer is that new earthing is with rotten
Grow the mixture of soil 10:1 in mass ratio～2；Preferably, the bottom surface in described landfill district is provided with the slope of 1～3% along its length
Degree；It is provided preferably with divider wall between adjacent two described landfill districts；
Inducing QI and leachate collection pipe network, described inducing QI and leachate collection pipe network include being respectively distributed to each described landfill
The leachate collection supervisor of the porous in district, many leachate collection arms of porous and many perforation airways；Described ooze
Filtrate collection supervisor is positioned on bottom surface, described landfill district and extends along the length direction in described landfill district, and one end stretches out described standard
Aerobic landfill is outer to be communicated with air；Described perforation airway is VERTICAL TUBE, and one end and described leachate collection supervisor connects, one
End extends to communicate with air outside described consumer waste filling and embedding layer unit, and the plurality of perforation airway interval is arranged；Described
Many leachate collection arms extend along the bottom surface in described landfill district and are spaced the both sides being arranged in described leachate collection supervisor,
And be connected with described leachate collection supervisor respectively；Adjacent two described leachate collection arms in same landfill district, adjacent
The spacing distance of two described perforation airways is respectively 22～24m, preferably 23m；
Percolate reflux, each landfill district is respectively equipped with described percolate reflux；Described percolate backflow dress
Put and include leachate collection pond, reflux pump and return duct；Described leachate collection pond is positioned at described leachate collection supervisor and stretches out
The port of described quasi-aerobic landfill one end outside the venue；Described return duct includes feed liquor port and liquid outlet mouth；Described liquid feeding end
Mouth is connected with described leachate collection pond pipeline by described reflux pump；Landfill time consumer waste filling and embedding below 2.5 years
The liquid outlet mouth of the return duct in landfill district, layer unit place extends to the consumer waste filling and embedding floor list that the landfill time was in 2～2.5 years
In unit；
Old rubbish exploitation screening plant, described old rubbish exploitation screening plant includes existing for excavating the landfill time
The old rubbish excavating equipment of the old rubbish of consumer waste filling and embedding layer unit of more than 2.5 years and for old rubbish sieve is divided into
Plastic waste materials and screening plant humous；Wherein said plastic waste materials and fertile soil are prepared to garbage derivatived fuel the most respectively
With described old rubbish cover layer.
Preferably, the landfill height of described consumer waste filling and embedding layer unit is 5～7m.
Preferably, the compacted density of described consumer waste filling and embedding layer unit is 400～600kg/m3, porosity be 41%～
60%.
Preferably, the internal diameter of described leachate collection supervisor, described leachate collection arm and described perforation airway divides
It is not 0.15～0.45m；Preferably, described leachate collection supervisor, described leachate collection arm and described perforation airway
The diameter of upper perforate is respectively 17～20mm, and pitch-row is 11～15cm.
Preferably, a length of the 50～100m of described leachate collection arm, described perforation airway a length of 7～
20m。
Preferably, the unit weight of described old rubbish cover layer is 0.7 × 103～1.0 × 103kg/m3；Described old rubbish
The porosity of cover layer is 45%～60%；The thickness of described old rubbish cover layer is 50～100cm.
Preferably, described percolate reflux also includes percolate return tank；Described return duct include return main and
It is connected with described return main respectively and spaced apart many backflow arms；Described return tank passes through described reflux pump and institute
State leachate collection pond pipeline to connect；Described return tank is positioned on described consumer waste filling and embedding layer unit, and bottom is provided with and oozes
Filtrate (liquid；Described return main is provided with percolate import；The outlet of described percolate is connected with described percolate import；Described time
Stream arm is provided with liquid outlet, and described liquid outlet extends in described consumer waste filling and embedding layer unit；Going out of each described backflow arm
Liquid mouth is positioned at the surface of described leachate collection supervisor, and the both sides of close each perforation airway respectively set a described backflow and prop up
Pipe；Preferably, the liquid outlet of described backflow arm stretches into below described consumer waste filling and embedding layer unit surface 20～40cm；Simultaneously
The liquid outlet of described backflow arm and nearer perforation airway horizontal interval 5～7m.
The application relates to a kind of method of continuable house refuse quasi-aerobic landfill, arbitrary described continuable before using
House refuse quasi-aerobic landfill system carries out the landfill disposal of house refuse, specifically includes following steps:
(1) house refuse described quasi-aerobic landfill field landfill district with the form of consumer waste filling and embedding layer unit temporally
After filling by unit, the fermentation of described consumer waste filling and embedding layer unit causes the inside and outside temperature difference that produces in described quasi-aerobic landfill field, extraneous
Air led by the described leachate collection of non-flowing full supervisor, leachate collection arm and perforation under internal-external temperature difference promotes
Trachea diffuses into the inside of described consumer waste filling and embedding layer unit, and makes described leachate collection arm, leachate collection prop up
Formed around pipe and perforation airway oxygen condition, away from the formation anaerobic zone, region of aerobic zone, in aerobic zone and anaerobic zone it
Between then form anoxic zone；Organic matter in described consumer waste filling and embedding layer unit and is detested by aerobic decomposition by internal microorganism
Oxygen decomposition decomposes；
(2) the landfill gas part that degraded produces is emitted in air by described perforation airway, and part is by described old
Rotten rubbish cover layer, the methane in landfill gas is then aoxidized point further by the methane-oxidizing bacteria in described old rubbish cover layer
Solve；The liquid that degraded produces penetrates into downwards described leachate collection supervisor and leachate collection arm and is collected, and collects
Percolate along described leachate collection supervisor be emitted in described filtrate collection pond；And fill time life below 2.5 years
The percolate that garbage loading embeading layer unit of living produces then is recharged to the landfill time 2～2.5 by described percolate reflux
The consumer waste filling and embedding layer unit in year, further speeds up the degradation rate of organic matter and stablizing of consumer waste filling and embedding layer unit
Change process；
(3) the old rubbish of landfill time consumer waste filling and embedding layer unit more than 2.5 years vacates landfill after being mined
Space is for filling new house refuse；The old rubbish excavated is sized isolates fertile soil and plastic waste materials；Described corruption
Growing and native be mixed and made into described old rubbish cover layer with new earthing, described plastic waste materials is prepared to garbage derivatived fuel.
Preferably, the hydraulic load controlling the backflow of described percolate is 31～45L/m3Week.
Preferably, the described landfill time uses the feedback control of aerobic zone moisture at the consumer waste filling and embedding layer unit of 2～2.5 years
System, moisture Control is 35～50wt%.
The technical scheme that the application provides can reach following beneficial effect:
The backflow of quasi-aerobic landfill, methane oxidation of covering layer and percolate is combined by the system and method for the application,
Have and accelerate the degraded ageing of consumer waste filling and embedding layer unit, realize the fast and stable of buring layer, reduce methane release further
The comprehensive effect of the discharge intensity of amount and reduction Landfill Leachate Pollutants；And by the excavation of old rubbish, on the one hand can rise
Go out landfill space for the landfill disposal of new house refuse thus to realize the sustainability of quasi-aerobic landfill field and recycle, separately
On the one hand by after old sieving garbage, the fertile soil screened out is recycled for being prepared as the old rubbish of quasi-aerobic landfill and covers
Layer, has the effect reducing quasi-aerobic landfill field Methane Emission, it addition, the flammable plastic waste material screened out then is prepared to
Garbage derivatived fuel RDF；So achieve the circulation of the waste resources of quasi-aerobic landfill field and quasi-aerobic landfill field and can hold
Continuous utilization.
Accompanying drawing explanation
Fig. 1 be the embodiment of the present application consumer waste filling and embedding layer in air-liquid flow to schematic diagram；
Fig. 2 is landfill district and the layout schematic top plan view of inducing QI and leachate collection pipe network of the embodiment of the present application；
Fig. 3 be the embodiment of the present application landfill district in inducing QI and leachate collection pipe net arrangement schematic perspective view；
Fig. 4 is the gabion cross section structure schematic diagram of the embodiment of the present application；
Fig. 5 be the embodiment of the present application consumer waste filling and embedding layer unit in percolate reflux position schematic diagram；
Reference,
1-quasi-aerobic landfill field；
11-bottom surface；
12-fills district；
13-divider wall；
2-consumer waste filling and embedding layer；
21-aerobic zone；
22-anaerobic zone；
3-old rubbish cover layer；
4-inducing QI and leachate collection pipe network；
41-leachate collection is responsible for；
42-leachate collection arm；
43-bores a hole airway；
5-percolate reflux；
51-leachate collection pond；
52-return main；
53-refluxes arm；
6-gabion；
61-cylinder mould；
62-gravel.
Detailed description of the invention
For making the purpose of the application, technical scheme and advantage clearer, below in conjunction with the embodiment of the present application and accompanying drawing,
The technical scheme of the application is clearly and completely described, it is clear that described embodiment is that the application part is implemented
Example rather than whole embodiments.The technical scheme provided based on the application and given embodiment, those skilled in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of the application protection.
Described in literary composition " on ", D score is all with the laying state of the structure in accompanying drawing as reference.
The application relates to a kind of continuable house refuse quasi-aerobic landfill system, including:
Quasi-aerobic landfill field, sets at least one landfill district in quasi-aerobic landfill field, and at least one landfill district is along landfill
The width in district is arranged side by side, and in each landfill district, landfill has consumer waste filling and embedding floor, described consumer waste filling and embedding layer bag respectively
Include at least one the consumer waste filling and embedding layer unit filled the most successively on the length direction in described landfill district；House refuse
Buring layer unit is provided with old rubbish cover layer；Old rubbish cover layer is new earthing and fertile soil 10:1 in mass ratio～2
Mixture；
Inducing QI and leachate collection pipe network, inducing QI and leachate collection pipe network include being respectively distributed to bottom each landfill district
The leachate collection supervisor of porous, many leachate collection arms of porous and many perforation airways；Leachate collection master
Pipe be positioned at landfill bottom surface, district on and along landfill district length direction extend, and one end stretch out quasi-aerobic landfill outside the venue with big gas phase
Logical；Perforation airway is VERTICAL TUBE, and one end connects with leachate collection supervisor, one end extends to outside consumer waste filling and embedding layer unit
Communicate with air, and multiple perforation airway interval is arranged；Between many leachate collection arms extend also along the bottom surface filling district
Every being arranged in the both sides that leachate collection is responsible for, and it is connected with leachate collection supervisor respectively；Adjacent the two of same landfill district
Root leachate collection arm, the spacing distance of adjacent two perforation airways are respectively 22～24m, preferably 23m；Fig. 2 and Fig. 3
Shown in.
Percolate reflux, each landfill district is respectively equipped with percolate reflux；Percolate reflux includes diafiltration
Liquid collecting pit, reflux pump and return duct；Leachate collection pond is positioned at leachate collection supervisor and stretches out quasi-aerobic landfill one outside the venue
The port of end；Return duct includes feed liquor port and liquid outlet mouth；Feed liquor port is by reflux pump and leachate collection pond pipeline
Connect；The landfill time landfill district, consumer waste filling and embedding layer unit place below 2.5 years return duct liquid outlet mouth extend
To the landfill time in the consumer waste filling and embedding layer unit of 2-2.5；
Old rubbish exploitation screening plant, old rubbish exploitation screening plant includes for excavating the landfill time in 2.5 years
The old rubbish excavating equipment of the above old rubbish of consumer waste filling and embedding layer unit and for old rubbish sieve is divided into plastic cement
Waste material and screening plant humous；Wherein said plastic waste materials and fertile soil are prepared to garbage derivatived fuel the most respectively
(Refuse Derived Fuel, RDF) and described old rubbish cover layer.
The application, further to a kind of method of continuable house refuse quasi-aerobic landfill, uses aforesaid sustainable
House refuse quasi-aerobic landfill system, specifically include following steps:
(1) house refuse in the landfill district of quasi-aerobic landfill field with the form of consumer waste filling and embedding layer unit temporally by list
After unit's landfill, the fermentation of consumer waste filling and embedding layer unit causes the inside and outside temperature difference that produces in quasi-aerobic landfill field, and extraneous air is inside and outside
The temperature difference diffuses into life by the leachate collection supervisor of non-flowing full with leachate collection arm and perforation airway under promoting
The inside of garbage loading embeading layer unit alive, and make to be formed around leachate collection arm, leachate collection arm and perforation airway
Good oxygen condition, away from aerobic zone formation anaerobic zone, region, between aerobic zone and anaerobic zone, then form anoxic zone；House refuse
Organic matter in buring layer unit is decomposed by the way of aerobic decomposition and anaerobic digestion by internal microorganism；
(2) the landfill gas part that degraded produces is emitted in air by perforation airway, and part is through covering in life
Old rubbish cover layer on garbage loading embeading layer unit, the methane in landfill gas is then by the methane oxidation in old rubbish cover layer
The further oxidation Decomposition of bacterium；The liquid that degraded produces penetrates into downwards leachate collection supervisor and leachate collection arm and quilt
Collecting, the percolate of collection is emitted in filtrate collection pond along leachate collection supervisor；And fill time life below 2.5 years
The percolate that garbage loading embeading layer unit of living produces is recharged to the landfill time the most further at the consumer waste filling and embedding layer of 2-2.5
Unit, further speeds up degraded and the stabilisation process of consumer waste filling and embedding layer unit of organic matter；
(3) landfill sky vacateed by the landfill time old rubbish of consumer waste filling and embedding layer unit more than 2.5 years after being mined
Between for filling new house refuse；The old rubbish excavated is sized isolates fertile soil and plastic waste materials；Described humic
Native and new earthing is mixed and made into described old rubbish cover layer, and described plastic waste materials is prepared to garbage derivatived fuel (Refuse
Derived Fuel, RDF).
About the biodegradation process in quasi-aerobic landfill system consumer waste filling and embedding layer unit, in aerobic zone, micro-life
Thing utilizes ammoniacal nitrogen nitration reaction；Denitrification is then carried out so that mineralized nitrogen becomes nitrogen in anaerobic zone；Finally, life rubbish
Rubbish buring layer unit is internal produces landfill gas, and such as nitrogen, methane and carbon dioxide etc., landfill gas part is directly filled out from house refuse
The top burying stack layers diffuses into old rubbish cover layer, and part diffuses into perforation airway, and drains into along perforation airway
In air, as shown in Figure 1.
The application continuable house refuse quasi-aerobic landfill system and continuable house refuse quasi-aerobic landfill
Method also specifically includes following improvement feature:
As a kind of improvement of the application, the height of the application consumer waste filling and embedding layer unit is 5～7m.The application is above-mentioned
A consumer waste filling and embedding layer unit can be only had, it is possibility to have more than one life in one landfill district of quasi-aerobic landfill field
Garbage loading embeading layer unit alive, is close to along landfill section length direction and lays successively；First pile up one house refuse of formation to fill out
Buried regions unit also sets old rubbish cover layer, then along the length side in landfill district on the consumer waste filling and embedding layer unit formed
To, it is close to a garbage loading embeading layer unit and piles up next garbage loading embeading layer unit again, until filling up a landfill district.It
After, then the landfill of house refuse is carried out in next one landfill district.So, same landfill district difference consumer waste filling and embedding layer unit
The landfill time is different, and the landfill time of the consumer waste filling and embedding layer unit in different landfill district is the most different.
As a kind of improvement of the application, the compacted density of the application consumer waste filling and embedding layer unit is 400～600kg/
m3, porosity is 41%～60%.
It is also preferred that the left on the bottom surface in landfill district, leachate collection arm is positioned at the midline position in landfill district, multiple percolates
Collect arm be distributed in the both sides of leachate collection supervisor and be spaced setting, as shown in Figure 2.
As a kind of improvement of the application, the bottom surface in landfill district has a gradient of 1～3%, and leachate collection supervisor and
Leachate collection arm has the gradient of 1～3% the most simultaneously, as shown in Figure 3.
Research display, O in quasi-aerobic landfill body2By leachate collection supervisor, leachate collection arm and perforation inducing QI
Pipe is diffused in buring layer, forms obvious stratification in whole buring layer；O in quasi-aerobic landfill structure2Concentration
Centered by vertical perforation airway, forming inverted cone build and spread in landfill heap body, its coverage is quadratic surface
The region surrounded.Specifically, due to the sedimentation densification of rubbish, upper strata is the loosest, i.e. upper strata O2It is easier to pass through
Perforation airway spreads downwards, therefore O2The concentration content on upper strata is higher, and middle lower floor O2Concentration is only around perforation airway
Higher, form inverted cone Body type distribution.Meanwhile, the aerobic radius of quasi-aerobic landfill is also led by leachate collection supervisor, perforation
The impact of the factors such as tracheal diameter, consumer waste filling and embedding layer unit height and house refuse characteristic.
As a kind of improvement of the application, in same landfill district, adjacent two leachate collection arms and adjacent two
The spacing distance of vertical perforation airway is 22～24, preferably 23m；It has been investigated that, when perforation airway between away from
When about 23m, inside consumer waste filling and embedding layer unit, the ratio of aerobic region and anaerobic zone volume is up to 0.67, now
Quasi-aerobic landfill technique perforation Methane Emission within airway meets the percent by volume < requirement of 5%.
As a kind of improvement of the application, leachate collection supervisor, leachate collection arm and perforation airway are opened
The diameter in hole is respectively 17～20mm, and pitch-row is 11～15cm.
As a kind of improvement of the application, leachate collection supervisor, perforation airway and the internal diameter of leachate collection arm
It is 0.15～0.45m.In the application, internal diameter refers both to inside diameter, and external diameter refers both to outer dia.Pipe diameter size can affect gas
Flowing velocity in leachate collection supervisor and perforation airway, can ensure the air-flow velocity in pipeline not in this range
Affected by the entrance friction of the flowage friction resistance in pipeline and the mouth of pipe.
As a kind of improvement of the application, leachate collection arm a length of 50～100m；A length of the 7 of perforation airway
～20m.It has been investigated that, for perforation airway, the long meeting of length causes managing interior gas flow rate and drastically declines.This be due to
The increase of duct length, pipe friction resistance work done is the most increasing so that flow velocity declines.
It is also preferred that the left the application selects to set up quasi-aerobic landfill field in the place that long-term wind speed is bigger, so not only contribute to
Strengthen velocity in pipes, it is also possible to promote the diffusion of pollutant.
It is also preferred that the left perforation airway stretches out consumer waste filling and embedding layer unit 30～50cm.
For the quasi-aerobic landfill field of semi-open-type, the old rubbish cover layer of the application has fine breathability, it is possible to
Ensure that outside air penetrates into consumer waste filling and embedding layer unit, the landfill gas such as methane that consumer waste filling and embedding layer unit produces simultaneously from
Buring layer internal diffusion to old rubbish cover layer carries out further oxidation Decomposition.As the material of old rubbish cover layer, old
Rotten rubbish, i.e. mineralized waste, containing substantial amounts of methane-oxidizing bacteria in the fertile soil screened out, not only meet and cover from old rubbish
The requirement of cover material infiltration coefficient, and there is the effect of biological adsorption, deodorization.Can be greatly by again exploiting mineralized waste
Regeneration quasi-aerobic landfill field storage capacity, to solve quasi-aerobic landfill field addressing difficult problem, alleviates the pressure of newly-built quasi-aerobic landfill field
Power, it is achieved that the volume space of quasi-aerobic landfill field and the circulation of waste resources and sustainable use.
In this application, old rubbish cover layer is the mixture of new earthing and old rubbish 10:1 in mass ratio～2；Can
To obtain higher methane oxidation efficiency, there is preferable economic feasibility simultaneously.
About the concept of new earthing, relative to old earthing, in the art, new earthing fingernail alkoxide bacterial content is relatively
Few overburden soil；The earthing that old earthing fingernail alkoxide bacterial content is higher, generally in quasi-aerobic landfill field fresh earthing through 1
～after the covering of 2 years, owing to there is the environment of methane release, progressively it is oxidized to the old earthing with methane oxidation ability.At this
There is growing and breeding of methane-oxidizing bacteria in individual process.
As a kind of improvement of the application, the thickness of old rubbish cover layer is 50～100cm；Old rubbish cover layer
Unit weight is 0.7 × 103～1.0 × 103kg/m3；The porosity of old rubbish cover layer is 45%～60%.
As a kind of performance of the application, between adjacent two landfill districts, it is provided with divider wall.
Leachate collection supervisor, perforation airway and leachate collection arm are owing to being embedded in quasi-aerobic landfill field and life
Rubbish of living directly contacts, in order to avoid blocking, at leachate collection supervisor, leachate collection arm and the pipe of perforation airway
Wall peripheral hardware gabion, gabion is made up of, as shown in Figure 4 the cylinder mould of the rubble and parcel rubble that are coated with tube wall.
In order to make bottom surface, quasi-aerobic landfill field reach the effect of antiseepage, house refuse fills it in quasi-aerobic landfill field
Before, infiltration layer of setting up defences on the upper berth, bottom surface of quasi-aerobic landfill field, impervious barrier includes HDPE film.Further, impervious barrier also includes soil
Work cloth.On the bottom surface of quasi-aerobic landfill field, first lay one layer of HDPE film, on HDPE film, then lay one layer of geotextiles, at soil
Landfill house refuse is piled up on work cloth.Leachate collection supervisor and leachate collection arm are the most all located on impervious barrier.
General, the bottom surface of quasi-aerobic landfill field is first laid one layer of clay liner layer, then on clay liner layer
Lay HDPE film, geotextiles, then arrange inducing QI and leachate collection pipe network.
It is also preferred that the left be equipped with percolate lead layer in geotextiles；Leachate collection supervisor and leachate collection arm bury
It is located in percolate lead layer.
In the application, percolate reflux is disposed to directly reflux the percolate resulting from quasi-aerobic landfill field
To consumer waste filling and embedding layer unit, utilize " bacteria bed " of waste layer to act on, reduce the discharge of pollutant in percolate strong
Degree.The percolate of backflow can be that microorganism carries out supplementary carbon source during denitrification, advantageously carries out in denitrifying.Meanwhile,
Carry out leachate recirculation to eliminate traditional anaerobism landfill and recharge, in quasi-aerobic landfill field, the NH caused4 +-N concentration is accumulated.This
Outward, the directly backflow of percolate have reduce investment outlay, simple to operate, operating cost is low, can effectively reduce pollutant levels, subtract
Few leachate generation, accelerates landfill gas and produces speed and the stabilisation process of landfill waste and quasi-aerobic landfill field sedimentation speed
Rate, the advantage improving the aspect such as service efficiency of quasi-aerobic landfill field；And show after deliberation, after backflow, leachate quality
The phenomenon of water quality deterioration will not be produced.
As a kind of detailed description of the invention of the application percolate reflux, percolate reflux also includes percolate
Return tank；Return duct includes return main and is connected with return main respectively and spaced apart many backflow arms；Backflow
Tank is connected with leachate collection pond pipeline by reflux pump；Return tank is positioned on consumer waste filling and embedding layer unit, and bottom sets
Percolate is had to export；Return main is provided with percolate import；Percolate outlet is connected with percolate import；Backflow arm is provided with out
Liquid mouth, liquid outlet extends in consumer waste filling and embedding layer unit.
As a kind of improvement of the application, in order to make full use of aerobic-anaerobic-anaerobism knot that quasi-aerobic landfill layer is formed
Structure, the aerobic region that percolate is back to, on the one hand avoid filling the increase in internal aerobic region, on the other hand ensure this district
Territory has preferable moisture and nutrient condition, makes this region play the ability of methane oxidation to greatest extent.I.e., respectively reflux arm
Liquid outlet be positioned at the surface of leachate collection supervisor, and respectively set a backflow arm near the both sides of each perforation airway；
It is also preferred that the left the liquid outlet of backflow arm stretches into below consumer waste filling and embedding layer unit surface 20～40cm；Meanwhile, backflow arm goes out
Liquid mouth and nearer perforation airway horizontal interval 5～7m, to ensure that effect is infiltrated in the backflow of percolate, ensure percolate simultaneously
The aerobic zone in consumer waste filling and embedding layer unit, anoxic zone and anaerobic zone can be sequentially passed through.As it is shown in figure 5, anoxic zone in figure
Do not mark.
Can effectively be regulated moisture and the nutrient content of quasi-aerobic landfill heap body aerobic zone rubbish by above backflow design, make
The aerobic region of quasi-aerobic landfill heap body keeps higher methane oxidation efficiency, thus reduces releasing of methane gas to greatest extent
Put.
As a kind of improvement of the application, the hydraulic load of percolate backflow should be less than the full of consumer waste filling and embedding layer unit
And infiltration coefficient；It is also preferred that the left the hydraulic load of percolate backflow is 31～45L/m3Week.Research display, along with circulating flow strength
The increase of (hydraulic load), can dramatically speed up percolate seepage flow in garbage loading embeading heap body；But when hydraulic load is excessive,
It is likely to be due to the existence of junk-heap body internal priority passage, junk-heap body inner aqueous rate can be caused to exist the most uneven
Property.
As a kind of improvement of the application, the application fills the consumer waste filling and embedding layer unit employing that the time was in 2～2.5 years
Aerobic zone moisture content feedback control, moisture control is less than 35～in the range of 50wt%.
Below by way of instantiation, the structural parameters of application quasi-aerobic landfill system are arranged and effect is done exemplary
Describe, as follows:
This example selects certain middle-size and small-size quasi-aerobic landfill field:
It is arranged side by side multiple landfill district on the width of bottom surface, quasi-aerobic landfill field, between adjacent landfill district, sets isolation
Wall；Along the midline position in the sole length direction in each landfill district, both sides are domatic, gradient a=2%, and bottom surface is along length side
To also have 2% the gradient, as shown in Figure 3；
In order to reach the effect of antiseepage, infiltration layer of setting up defences on the upper berth, bottom surface of quasi-aerobic landfill field, including laying clay successively
Laying, HDPE film, geotextiles；Then in quasi-aerobic landfill field, lay inducing QI and leachate collection pipe network；Leachate collection
Supervisor's (caliber 0.40m, aperture 18mm, pitch-row 12cm) lays along aforesaid midline position, and the relatively low one end of physical features is from landfill district
Quasi-aerobic landfill field is stretched out in bottom surface；Vertical perforation airway (long 7.5m, caliber 0.15m, aperture 18mm, pitch-row 12cm)
And leachate collection supervisor is connected and is spaced 23m between adjacent perforated airway；In the preamble on the bottom surface of line both sides, respectively
The both sides of the connection site that perforation airway is responsible for leachate collection are correspondingly arranged a pair and are responsible for phase with leachate collection respectively
The leachate collection arm (long 50m, caliber 0.15m, aperture 18mm, pitch-row 12cm) of connection；Leachate collection supervisor and diafiltration
Liquid is collected arm and is sunk together with the HDPE film under bottom surface and geotextiles portion concave entrance clay liner；
For avoiding inducing QI and the blocking of leachate collection pipe network, in leachate collection supervisor and the week of leachate collection arm
Enclose and cover with rubble protection, and in geotextiles, re-lay one layer of percolate lead layer, leachate collection supervisor, percolate are received
Collection is embedded in percolate lead layer, in order to the flowing of bottom percolate；The surrounding of perforation airway protects with gabion；
Then start to fill house refuse from a landfill one end along its length, district and form an Aerated Landfill Layers list
(wide with landfill district, high 7m, compacted density is 400～600kg/m in unit3, porosity is 41%～60), then fill out at this rubbish
Lay on buried regions unit old rubbish cover layer (mixture of new earthing and fertile soil 10:1.5 in mass ratio, unit weight is 0.7 ×
103～1.0 × 103kg/m3, porosity is 45%～60%, and thickness is 70cm)；Afterwards, along the length direction in this landfill district, tightly
Form next garbage loading embeading layer unit by upper garbage loading embeading layer unit landfill house refuse and lay old rubbish and fill out
Buried regions, parameter is the same；So lay until filling up whole landfill district and formed the consumer waste filling and embedding floor in this landfill district；The most again
Filling house refuse in next one landfill district, land-fill method is the same；So due to the shape of different consumer waste filling and embedding layer unit
The one-tenth time is different, and in quasi-aerobic landfill field, the landfill time of the consumer waste filling and embedding layer unit in each landfill district is the most different；
This example percolate refluxes, from the leachate collection of leachate collection supervisor's outflow leachate collection pond, so
After directly reflux without any process；First, the percolate in leachate collection pond is delivered to eminence by reflux pump
In return tank, percolate outlet is set bottom return tank, and is provided with control valve, be provided above a level in quasi-aerobic landfill field
Return main, the percolate of the percolate import of return main and return tank exports and is connected and exports less than percolate, refluxes
Supervisor connects multiple vertical backflow arm, and the liquid outlet of backflow arm by old rubbish cover layer and is passed through house refuse
40cm below buring layer cell surface, and the liquid outlet of each backflow arm is positioned at the surface of leachate collection supervisor, and close
Horizontal interval, the both sides 7m of each perforation airway respectively sets a backflow arm, as shown in Figure 5.Percolate backflow waterpower spatial load forecasting
31～45L/m3In week, consumer waste filling and embedding layer unit uses aerobic zone moisture content feedback control, and aerobic zone moisture control is 35
～in the range of 50%；
And in this example, the percolate that landfill time consumer waste filling and embedding layer unit below 2.5 years produces is back to
The landfill time is in the consumer waste filling and embedding layer unit of 2～2.5 years, biodegradation organic in being so conducive to accelerating buring layer
And accelerate the stabilisation process of consumer waste filling and embedding layer unit；Landfill time consumer waste filling and embedding layer unit more than 2.5 years
Old rubbish then can be mined exploitation, vacate landfill space for filling new house refuse, so can realize accurate aerobic
Recycling of landfill yard volume space；It is demonstrated experimentally that use above-mentioned quasi-aerobic landfill, realized house refuse at about 2 years and fill out
The landfill of buried regions unit is stable, then carries out can realizing after percolate refluxes 0.5 year the most stable of consumer waste filling and embedding layer unit；
And after the old rubbish excavation that the time that fills is more than 2.5 years, it is sieved into the plastic waste material such as plastics, rubber by screening plant
Combustible and the fertile soil such as material；Flammable plastic waste materials can be made into garbage derivatived fuel and be recycled, and contains in fertile soil
There is substantial amounts of methane-oxidizing bacteria, old rubbish cover layer can be mixed and made into new earthing；So achieve quasi-aerobic landfill field with
And the circulation of quasi-aerobic landfill field waste resources and sustainable use.
Use above-mentioned landfill process, domestic waste is carried out quasi-aerobic landfill process；A certain with running
Landfill district a consumer waste filling and embedding layer unit as a example by, consumer waste filling and embedding layer unit the landfill time reach 2 years (24
Month) after proceed by recharging of percolate, the percolate recharged results from the life below 2.5 (30 months) years of the landfill time
Garbage loading embeading layer unit；Landfill gas to percolate and the perforation airway top mouth of pipe carries out the detection of different time sections, point
Analysis result is as shown in Table 1 and Table 2.
The consumer waste filling and embedding layer unit percolate of table 1 different landfill time mainly comprises (backflow)
The consumer waste filling and embedding layer unit landfill gas of table 2 different landfill time mainly comprises (backflow)
From above Tables 1 and 2 it can be seen that use this method that domestic waste is carried out quasi-aerobic landfill disposal,
Landfill stabilization 1～in the range of 24 months, COD in percolateCrAnd NH3-N concentration significantly reduces to 320.4 and 103.2mg/L；Fill out
Burying methane concentration in gas first to raise and be reduced to 6.44% afterwards, oxygen concentration the most first reduces and raises 5.93% afterwards.At landfill
Dispose 24～in the range of 30 months, dispose owing to having carried out percolate backflow, further speeded up the steady of landfill waste in heap body
Surely process is changed.In reflux course, COD in the percolate that heap body producesCrAnd NH3-N concentration is in significantly reduced after notable first rising
Trend, is finally reduced to 147.4 and 60.8mg/L；In landfill gas, methane concentration again presents first to raise and reduces trend afterwards, finally
Being reduced to 4.55%, oxygen concentration the most again presents first to reduce and raises trend afterwards, is finally increased to 6.11%.In summary, warp
Percolate backflow after the landfill stabilization of by a definite date 2.5 years and 0.5 year is disposed, and house refuse quasi-aerobic landfill heap body can realize relatively
Good stabilisation, " quasi-aerobic landfill+percolate backflow " technique has dramatically speeded up the stabilisation process of landfill house refuse simultaneously,
The leachate contamination substrate concentration simultaneously produced is relatively low, and achieves effective reduction of discharging of greenhouse gas methane, old for stabilisation
The follow-up excavation utilization of rotten rubbish has significant advantage.
A certain consumer waste filling and embedding layer list with a certain domestic waste quasi-aerobic landfill not carrying out percolate backflow
Unit is comparative example, the landfill gas of percolate and the perforation airway top mouth of pipe carries out the detection of different time sections, analyzes knot
Fruit is as shown in Table 3 and Table 4；
The consumer waste filling and embedding layer unit percolate of table 3 different landfill time mainly comprises (not refluxing)
The consumer waste filling and embedding layer unit landfill gas of table 4 different landfill time mainly comprises (not refluxing)
Table 3 and table 4 are contrasted with Tables 1 and 2, it is seen then that after carrying out percolate reflow treatment, fill what heap body produced
Pollutant levels substantially reduce, and landfill gas methane concentration first raises and reduces afterwards, and oxygen concentration the most first reduces and raises afterwards, finally fills out
Bury junk-heap body and obtain higher stabilization effect.And do not carry out the garbage loading embeading heap body of percolate reflow treatment, its stabilisation
Weak effect (final leachate contamination substrate concentration is higher, and the concentration of landfill gas methane is higher), simultaneously because be not carried out for
New refuse produces the process of percolate, it will further result in the relatively costly of this follow-up disposal of part percolate.
Although the application is open as above with preferred embodiment, but is not for limiting claim, any this area skill
Art personnel, on the premise of conceiving without departing from the application, can make some possible variations and amendment, therefore the application
Protection domain should be defined in the range of standard with the application claim.
Claims (10)
1. a continuable house refuse quasi-aerobic landfill system, it is characterised in that including:
Quasi-aerobic landfill field, sets at least one landfill district, and at least one landfill edge, district described in described quasi-aerobic landfill field
The width in described landfill district is arranged side by side, and in described landfill district, landfill has consumer waste filling and embedding floor, described house refuse to fill out
Buried regions is included on the length direction in described landfill district at least one the consumer waste filling and embedding layer unit filled the most successively；Institute
State consumer waste filling and embedding layer unit and be provided with old rubbish cover layer；Described old rubbish cover layer is that new earthing is pressed with fertile soil
The mixture of mass ratio 10:1～2；Preferably, the bottom surface in described landfill district is provided with the gradient of 1～3% along its length；Adjacent
It is provided preferably with divider wall between two described landfill districts；
Inducing QI and leachate collection pipe network, described inducing QI and leachate collection pipe network include being respectively distributed in each described landfill district
Porous leachate collection supervisor, many leachate collection arms of porous and many perforation airways；Described percolate
Collecting main is positioned on bottom surface, described landfill district and extends along the length direction in described landfill district, and to stretch out described standard aerobic in one end
Landfill yard is outer to be communicated with air；Described perforation airway is VERTICAL TUBE, and one end connects with described leachate collection supervisor, one end is prolonged
Extend and communicate with air outside described consumer waste filling and embedding layer unit, and the plurality of perforation airway interval is arranged；Described many
Leachate collection arm extends and is spaced the both sides being arranged in described leachate collection supervisor along the bottom surface in described landfill district, and point
It is not connected with described leachate collection supervisor；Adjacent two described leachate collection arms in same landfill district, adjacent two
The spacing distance of described perforation airway is respectively 22～24m, preferably 23m；
Percolate reflux, each landfill district is respectively equipped with described percolate reflux；Described percolate reflux bag
Include leachate collection pond, reflux pump and return duct；Described leachate collection pond is positioned at described leachate collection supervisor and stretches out described
The port of quasi-aerobic landfill one end outside the venue；Described return duct includes feed liquor port and liquid outlet mouth；Described feed liquor port leads to
Cross described reflux pump to be connected with described leachate collection pond pipeline；Landfill time consumer waste filling and embedding layer list below 2.5 years
The liquid outlet mouth of the return duct in landfill district, place of unit extends to the landfill time in the consumer waste filling and embedding layer unit of 2～2.5 years；
Old rubbish exploitation screening plant, described old rubbish exploitation screening plant includes for excavating the landfill time in 2.5 years
The old rubbish excavating equipment of the above old rubbish of consumer waste filling and embedding layer unit and for old rubbish sieve is divided into plastic cement
Waste material and screening plant humous；Wherein said plastic waste materials and fertile soil are prepared to garbage derivatived fuel and institute the most respectively
The old rubbish cover layer stated.
House refuse quasi-aerobic landfill system the most according to claim 1, it is characterised in that described consumer waste filling and embedding layer
The landfill height of unit is 5～7m.
House refuse quasi-aerobic landfill system the most according to claim 1, it is characterised in that described consumer waste filling and embedding layer
The compacted density of unit is 400～600kg/m3, porosity is 41%～60%.
Continuable house refuse quasi-aerobic landfill system the most according to claim 1, it is characterised in that described percolate
The internal diameter of collecting main, described leachate collection arm and described perforation airway is respectively 0.15～0.45m；Preferably, institute
State the diameter of perforate on leachate collection supervisor, described leachate collection arm and described perforation airway be respectively 17～
20mm, pitch-row is 11～15cm.
Continuable house refuse quasi-aerobic landfill system the most according to claim 1, it is characterised in that described percolate
Collect a length of the 50～100m of arm, a length of the 7～20m of described perforation airway.
Continuable house refuse quasi-aerobic landfill system the most according to claim 1, it is characterised in that described old rubbish
The unit weight of rubbish cover layer is 0.7 × 103～1.0 × 103kg/m3；The porosity of described old rubbish cover layer be 45%～
60%；The thickness of described old rubbish cover layer is 50～100cm.
Continuable house refuse quasi-aerobic landfill system the most according to claim 1, it is characterised in that described percolate
Reflux also includes percolate return tank；Described return duct includes return main and is connected also with described return main respectively
Spaced apart many backflow arms；Described return tank is connected with described leachate collection pond pipeline by described reflux pump；Institute
State return tank to be positioned on described consumer waste filling and embedding layer unit, and bottom is provided with percolate outlet；Described return main is provided with
Percolate import；The outlet of described percolate is connected with described percolate import；Described backflow arm is provided with liquid outlet, described in go out liquid
Mouth extends in described consumer waste filling and embedding layer unit；The liquid outlet of each described backflow arm is positioned at described leachate collection supervisor
Surface, and respectively set a described backflow arm near the both sides of each perforation airway；Preferably, the going out of described backflow arm
Liquid mouth stretches into below described consumer waste filling and embedding layer unit surface 20～40cm；The liquid outlet of the most described backflow arm is with nearer
Perforation airway horizontal interval 5～7m.
8. the method for a continuable house refuse quasi-aerobic landfill, it is characterised in that use claim 1-7 arbitrary described
Continuable house refuse quasi-aerobic landfill system carries out the landfill disposal of house refuse, specifically includes following steps:
(1) house refuse in the landfill district of described quasi-aerobic landfill field with the form of consumer waste filling and embedding layer unit temporally by list
After unit's landfill, the fermentation of described consumer waste filling and embedding layer unit causes the inside and outside temperature difference that produces in described quasi-aerobic landfill field, and extraneous is big
Gas passes through the described leachate collection supervisor of non-flowing full, leachate collection arm and perforation airway under internal-external temperature difference promotes
Diffuse into the inside of described consumer waste filling and embedding layer unit, and make described leachate collection arm, leachate collection arm and
Perforation airway around formed oxygen condition, away from the formation anaerobic zone, region of aerobic zone, between aerobic zone and anaerobic zone then
Form anoxic zone；Organic matter in described consumer waste filling and embedding layer unit is divided by aerobic decomposition and anaerobism by internal microorganism
Solution decomposes；
(2) the landfill gas part that degraded produces is emitted in air by described perforation airway, and part is by described old rubbish
Rubbish cover layer, the methane in landfill gas is then by the further oxidation Decomposition of methane-oxidizing bacteria in described old rubbish cover layer；Fall
Solve the liquid produced to penetrate into downwards described leachate collection supervisor and leachate collection arm and be collected, the diafiltration of collection
Liquid is emitted in described filtrate collection pond along described leachate collection supervisor；And fill time house refuse below 2.5 years
The percolate that buring layer unit produces then is recharged to the landfill time the life of 2～2.5 years by described percolate reflux
Garbage loading embeading layer unit alive, the stabilisation of the degradation rate and consumer waste filling and embedding layer unit that further speed up organic matter is entered
Journey；
(3) the old rubbish of landfill time consumer waste filling and embedding layer unit more than 2.5 years vacates landfill space after being mined
For filling new house refuse；The old rubbish excavated is sized isolates fertile soil and plastic waste materials；Described fertile soil
Being mixed and made into described old rubbish cover layer with new earthing, described plastic waste materials is prepared to garbage derivatived fuel.
The method of continuable house refuse quasi-aerobic landfill the most according to claim 8, it is characterised in that control described
The hydraulic load of percolate backflow is 31～45L/m3Week.
The method of continuable house refuse quasi-aerobic landfill the most according to claim 8, it is characterised in that described in fill out
Time of burying uses aerobic zone moisture feedback control at the consumer waste filling and embedding layer unit of 2～2.5 years, moisture Control 35～
50wt%.
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| CN108213052A (en) * | 2018-02-06 | 2018-06-29 | 北京环境工程技术有限公司 | One kind is used for aging refuse classification aerobic pretreatment device and method |
| CN108315081A (en) * | 2018-04-08 | 2018-07-24 | 源创环境科技有限公司 | The RDF production systems of aging rubbish are dried using the landfill gas of refuse landfill |
| CN109759416A (en) * | 2018-05-21 | 2019-05-17 | 光大环境修复(江苏)有限公司 | A kind of integrated conduct method of house refuse |
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2016
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| CN108315081A (en) * | 2018-04-08 | 2018-07-24 | 源创环境科技有限公司 | The RDF production systems of aging rubbish are dried using the landfill gas of refuse landfill |
| CN108315081B (en) * | 2018-04-08 | 2023-11-28 | 源创环境科技有限公司 | RDF production system for drying stale garbage by using landfill gas of garbage landfill |
| CN109759416A (en) * | 2018-05-21 | 2019-05-17 | 光大环境修复(江苏)有限公司 | A kind of integrated conduct method of house refuse |
| CN109759416B (en) * | 2018-05-21 | 2022-04-19 | 光大环境修复(江苏)有限公司 | Comprehensive treatment method for household garbage |
| CN111530268A (en) * | 2020-04-30 | 2020-08-14 | 南京大学 | Method and system for treating odor and peculiar smell gas of garbage through multi-stage series stock under-sieve humus soil aerobic fixed bed for household garbage |
| CN112830573A (en) * | 2021-03-24 | 2021-05-25 | 三亚易可霖环保科技有限公司 | On-site treatment equipment for landfill leachate |
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Application publication date: 20161109 |