CN109772864A - A kind of free of contamination house refuse aerobic fermentation system and fermentation process - Google Patents
A kind of free of contamination house refuse aerobic fermentation system and fermentation process Download PDFInfo
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- CN109772864A CN109772864A CN201910247201.4A CN201910247201A CN109772864A CN 109772864 A CN109772864 A CN 109772864A CN 201910247201 A CN201910247201 A CN 201910247201A CN 109772864 A CN109772864 A CN 109772864A
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Abstract
The invention discloses a kind of free of contamination house refuse aerobic fermentation system and fermentation process, including several aerobic fermentation chambers disposed in parallel, and ventilation channel, leachate reeirculation pipeline and gas exhaust piping are provided in each fermentation cabin.Aerobic fermentation system of the invention realizes totally-enclosed aerobic fermentation, and ordorless gas is generated, is discharged without landfill leachate, improves the environment in garbage disposal site, reduce the maintenance cost of consumer waste filling and embedding processing.
Description
Technical field
The invention belongs to Solid Waste Treatment and Resources to utilize technical field, and in particular to domestic rubbish disposal.
Background technique
Domestic waste is the solid waste having a large capacity and a wide range.It is wanted with China's socio-economic development and to environmental quality
Ask higher and higher, the amount of house refuse is increasing, collect, transhipment, processing and recycling also increasingly by governments at all levels,
The great attention of scientific worker.
Disposal of Domestic mode has many different group technologies.Main disposal technology is in early days with compost, natural heap
Deposit, fill based on.But with the attention to soil environment quality and agricultural food product safety, producing fertilizer from refuse in daily life is because containing
The poisonous and harmful substances such as heavy metal are gradually eliminated.Naturally stockpiling, simple landfill are because generating serious underground water pollution, also
It is prohibited.House refuse is directly sorted and was once taken seriously, but because obstacle, operation dimension often occurs in the direct separation system of rubbish
Shield is difficult, sorting product recycling benefits are not high, after especially sorting compost part fertilizer efficiency it is low, there are environmental risk, be difficult to it is outer
Pin, causes directly to be sorted in China's domestic rubbish disposal and is difficult to promote.
The processing mode of house refuse mainstream is sanitation type landfill, power generation by waste combustion at present.Sanitary landfills can accomplish safety
Harmlessness disposing, but refuse landfill stench is unpleasant, mosquito growth is serious, environment is dirty and messy badly, greenhouse gas emissions are huge
Greatly, landfill leachate treatment it is difficult, it is at high cost be landfill yard operation and maintenance very big burden.Sanitary landfills handle one-time investment compared with
Greatly, it takes up a large area, could not realize garbage as resource utilization and minimizing target.And landfill yard limited space, after the several years
It after all to close, the awkward situation that house refuse can nowhere bury occurs in the selected difficulty in new site.From domestic rubbish disposal it is innoxious,
From the point of view of minimizing target, incinerating method is most safe, most thorough.Meanwhile heat caused by burning process can also generate electricity.But because
House refuse water content is high, calorific value is low, causes generating efficiency low.And consumer waste incineration generates dioxin, needs complicated height
The flue gases purification processing of consumption is just able to satisfy emission request.It can equally be generated during the rubbish stockpiling of municipal solid waste incinerator
The environmental sanitations such as stench problem and serious atmosphere polluting problem cause many incineration plant construction to be difficult to land implementation.Burn hair
Electricity equally exists the problem that one-time investment is larger, operation cost is high.Therefore, refuse disposal and resource technology, which are developed, is always
The hot spot in scientific and technological development field.
Aerobic fermentation is carried out to house refuse, refuse moisture, degradation organic matter can be effectively reduced, avoid at house refuse
The malodor problem during the stockpiling of factory's rubbish is managed, and generating efficiency can be improved.But existing aerobic fermentation chamber is mostly open, if with this
The aerobic fermentation chamber of kind form handles house refuse, and the exhaust gas that will affect its hygienic conditions, and generate during the fermentation can be made
At serious atmosphere polluting problem.Therefore, the structure of existing aerobic fermentation chamber is not suitable for domestic waste disposal site.
Summary of the invention
To avoid above-mentioned existing deficiencies in the technology, the present invention provides a kind of free of contamination house refuse is good
Oxygen system and fermentation process, it is intended to carry out house refuse aerobic fermentation by the means of economical and efficient, improve destructor plant
Hygienic conditions.
The present invention is to realize goal of the invention, is adopted the following technical scheme that
A kind of free of contamination house refuse aerobic fermentation system, it is characterized in that: it is removed including house refuse lower hopper, biology
Smelly dose of holding vessel and aerobic fermentation chamber group；
Bag-breaking machine is provided in the house refuse lower hopper；
Biological deodorant flusher, the biological deodorant sprinkling dress are additionally provided in the house refuse lower hopper
It sets and the biological deodorant holding vessel is connected to by pipeline；
The aerobic fermentation chamber group is arranged in parallel by several closed aerobic fermentation chambers, the one side of the aerobic fermentation chamber
Outlet portal is equipped with equipped with access doors, opposite another side；A shared public affairs are provided at the access doors of each aerobic fermentation chamber
Gallery altogether；The top of the public gallery is arranged in the discharge port of the house refuse lower hopper；
Landfill leachate collecting pit is arranged in the public gallery；The ground of the aerobic fermentation chamber is in ramped shaped,
Descending side is provided with intercepting gutter；The intercepting gutter confluence of each aerobic fermentation chamber is connected to the landfill leachate collecting pit；
It is equipped with ventilation channel in the bottom of each aerobic fermentation chamber, the ventilation channel is connected to oxygen supply air blower；
It is equipped with leachate reeirculation pipeline on the top of each aerobic fermentation chamber, in the landfill leachate collecting pit
Immersed pump is installed；The leachate reeirculation pipeline connection is to the immersed pump；
It is equipped with gas exhaust piping at the top of each aerobic fermentation chamber, the gas exhaust piping is connected to deodorization by exhaust blower
Tower.
The aerobic fermentation chamber group is that full underground or semi-underground type are arranged.
The ground of the aerobic fermentation chamber from apart from intercepting gutter farther out a side to the gradient of intercepting gutter side be 3-5%, from
The gradient of outlet portal side to access doors side is 0.3-1%.
The quantity of aerobic fermentation chamber is no less than 5 in the aerobic fermentation chamber group.
The aerobic fermentation chamber in a rectangular parallelepiped shape, high 5-15m, width 5-30m, long 30-100m.
Draining channel steel is fixed in the roof two sides of the aerobic fermentation chamber.
The method for carrying out aerobic fermentation using the house refuse aerobic fermentation system, includes the following steps:
Step 1 is stored in biological deodorant in the biological deodorant holding vessel；
House refuse is poured into house refuse lower hopper, packaging bag is scratched by bag-breaking machine, and sprayed and filled by biological deodorant
It sets and sprays biological deodorant into house refuse lower hopper, keep biological deodorant uniform with domestic garbage mixing；
Step 2 is added to the house refuse blanking of biological deodorant to public gallery, then successively moves into each aerobic fermentation
Storehouse, each aerobic fermentation chamber laying close fermentation cabin access doors after buying securities with all one's capital, start to be laid with next aerobic fermentation chamber；
Step 3, from oxygen supply air blower by ventilation channel buy securities with all one's capital to laying after aerobic fermentation chamber in be continually fed into air,
The landfill leachate dissolved oxygen that air capacity is passed through to flow out in aerobic fermentation chamber is greater than 0.5mg/L as control parameter, to maintain
Oxygen condition starts static fermentation；
Each aerobic fermentation chamber is then pooled to rubbish after the landfill leachate gravity flow that fermentation process generates is pooled to intercepting gutter
Rubbish leachate collection pool；
First 5 days of fermentation are sprayed from leachate reeirculation pipeline into aerobic fermentation chamber at interval of 4h by immersed pump
Landfill leachate, persistently sprays 1h every time, to maintain moisture needed for the fermentation of house refuse heap body in aerobic fermentation chamber；It is quiet
Stop spray after setting fermentation 5 days, continue fermentation 5-10 days, makes biomass organic matter degradation in house refuse, decomposed, stable, make
Moisture evaporation, obtains decomposed material after loose, odorless fermentation；
Exhaust gas caused by aerobic fermentation chamber fermentation process is extracted out by exhaust blower from gas exhaust piping, is sent to deodorizing tower
Deodorization；
Each aerobic fermentation chamber independently carries out aerobic fermentation；
Step 4 stops ventilation after fermentation, opens the outlet portal of aerobic fermentation chamber, clears out decomposed material after fermentation.
Further, the additional amount of biological deodorant described in step 1 is rubbish 0.5-5kg per ton.
Further, decomposed material is combined and is sorted by screening, electromagnetic separation and selection by winnowing after gained fermentation, is sub-elected
Fertile soil, wooden, rubber, fabric, metal, plastics, glass, ceramics, brick and tile and stone；
Gained fertile soil is used as stock growing greening nutritive soil；Gained metal, which is sent to smeltery, to be regenerated；The washing of gained plastics
Being granulated after drying becomes regenerated plastics master batch；Gained glass, ceramics, brick and tile and stone are used as construction material；Gained is wooden, rubber
Glue, fabric are used as fuel thermal decomposition gasification or directly the burning recycling energy.
The beneficial effects of the present invention are embodied in:
1, aerobic fermentation system of the invention is purified by complete alternation to waste water, to the deodorization of exhaust gas, realizes waste water
And zero waste gas emission, eliminate the malodor problem of domestic waste disposal site；And in the present invention aerobic fermentation chamber be it is semi-underground even
The totally-enclosed system of full underground, avoids foul gas loss welding, it is dirty and messy smelly to completely solve domestic waste disposal site
Awkward situation improves the environmental sanitation situation of domestic garbage treatment plant.
2, the present invention sprays biological deodorant into house refuse, it is possible to reduce the production of foul gas before aerobic fermentation
It is raw.
3, landfill leachate collecting pit is arranged in the present invention under public gallery, and the setting of aerobic fermentation chamber ground is sloping
Shape, the landfill leachate that fermentation process can be made to generate flow automatically to landfill leachate collecting pit, on the one hand facilitate junk-heap body
It drains away the water, ultimately helps the water content for reducing matured waste；On the other hand facilitate the sprinkling irrigation processing of landfill leachate.
4, method and system of the invention carries out complete alternation processing to landfill leachate, aerobic fermentation early period to life
The landfill leachate that sprinkling irrigation aerobic fermentation process generates in junk-heap body, aerobic fermentation later period no longer spray, moisture evaporation decrement,
The processing of landfill leachate is realized, to realize the zero-emission of waste water, eliminates the problem of landfill leachate treatment, disposition.
And the recharge of landfill leachate, a large amount of thermophilic aerobic microbiologicals are vaccinated with for junk-heap body fermentation, accelerate the micro- life of junk-heap body
Object growth rate accelerates aerobic microbiological proliferation and metabolism and organic matter degradation speed, improves the fermentation temperature of junk-heap body, can
So that the raising of junk-heap body temperature reaches 80 DEG C or more, rapid high-temperature aerobic fermentation is realized, most of pathogenic bacteria can be inactivated
And weed seed, good condition is created for utilization humous after fermentation.
5, after carrying out aerobic fermentation to house refuse by means of the present invention, have and further divided using to it
Choosing, avoids the problem that house refuse directly sorts: anaerobism has been smelly for the rubbish shipped from residential block, water content
Height is adhered seriously, and directly sorting is difficult, and foul gas diverging seriously, it is relatively difficult to control foul gas pollution.First aerobic fermentation
The mode sorted afterwards has the following advantages: reducing refuse moisture, is significantly reduced, reduces sorting load and cost；It is degradable to have
The corruption of machine matter stabilizes, grain refined；All kinds of materials are easier to dispersion, depolymerization, sorting in rubbish；The material clamp band impurity of sorting is few,
It is easier to be further processed.
6, after being fermented by means of the present invention, then house refuse is sorted, the wholly-owned source of solid waste may be implemented
Change.
Detailed description of the invention
Fig. 1 is the floor map of life rubbish aerobic fermentation system；
Fig. 2 is the schematic cross section of aerobic fermentation chamber group；
Figure label: 1 is house refuse lower hopper；2 be biological deodorant holding vessel；3 be aerobic fermentation chamber；4 be public
Gallery；5 be landfill leachate collecting pit；6 be intercepting gutter；7 be ventilation channel；8 be oxygen supply air blower；9 return for landfill leachate
Fill pipeline；10 be immersed pump；11 be bag-breaking machine；12 be biological deodorant flusher；13 be gas exhaust piping；14 be exhaust air blast
Machine；15 be deodorizing tower；16 be ground；3A fermentation cabin roof；3B is fermentation cabin concrete wall；3C is fermentation warehouse partition.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below with reference to embodiment to this hair
Bright specific embodiment is described in detail.The following contents is only to design example of the invention and explanation, institute
Belong to those skilled in the art to make various modifications or additions to the described embodiments or using similar
Mode substitutes, and as long as it does not deviate from the concept of invention or beyond the scope defined by this claim, should belong to the present invention
Protection scope.
As depicted in figs. 1 and 2, a kind of free of contamination house refuse aerobic fermentation system, including house refuse lower hopper
1, biological deodorant holding vessel 2 and aerobic fermentation chamber group.
It is provided with bag-breaking machine 11 in house refuse lower hopper 1, is used for Domestic garbage bag-breaking, blanking.In specific implementation,
The disposable type of achievable required function or the bag-breaking machine of structure can be used in bag-breaking machine.
Biological deodorant flusher 12, biological deodorant flusher 12 are additionally provided in house refuse lower hopper 1
Biological deodorant holding vessel 2 is connected to by pipeline；Biological deodorant flusher be used for Domestic garbage bag-breaking, blanking it is same
When, biological deodorant is sprayed into house refuse, keeps biological deodorant uniform with domestic garbage mixing.In specific implementation, biology
The structure of existing any achievable required function can be used in deodorant flusher, such as can be by force (forcing) pump, transfer pipeline, flow
Meter, flow control valve, sprinkler composition, effect is to add biological deodorizing into house refuse to be processed according to required measure
Agent.
Aerobic fermentation chamber group is arranged in parallel by several closed aerobic fermentation chambers 3, the one side of aerobic fermentation chamber 3 be equipped with into
Mouth door, opposite another side are equipped with outlet portal；A shared public gallery is provided at the access doors of each aerobic fermentation chamber 3
4；The top of public gallery 4 is arranged in the discharge port of house refuse lower hopper 1；House refuse passes through weight by house refuse lower hopper
It after power direct blanking to public gallery, then successively send to each aerobic fermentation chamber, in specific implementation, rubbish can be set on public gallery
Rubbish conveying device is successively sent house refuse to each aerobic fermentation chamber by waste conveyor.
Landfill leachate collecting pit 5 is provided with below public gallery 4；The ground of aerobic fermentation chamber 3 is in ramped shaped, direction
The direction of the landfill leachate collecting pit 5 tilts, and descending side is provided with intercepting gutter 6；The intercepting gutter 6 of each aerobic fermentation chamber converges
Stream is connected to landfill leachate collecting pit 5, so that after the landfill leachate gravity flow that fermentation process generates is pooled to intercepting gutter, then
It is pooled to landfill leachate collecting pit.In specific implementation, with the parallel direction with public gallery 4 be laterally, with from outlet portal to
The direction of access doors be it is longitudinal, the ground of aerobic fermentation chamber from apart from intercepting gutter farther out gradient from a side to intercepting gutter side (i.e.
Lateral gradient) be 3-5%, gradient from outlet portal side to access doors side (i.e. longitudinal gradient) is 0.3-1%.
It is equipped with ventilation channel 7 in the bottom of each aerobic fermentation chamber 3, ventilation channel 7 is connected to oxygen supply air blower 8, oxygen supply
Air blower conveys air into aerobic fermentation chamber by ventilation channel, to maintain the aerobic gaseous environment in aerobic fermentation chamber.Tool
During body is implemented, ventilation channel is perforated pipe, for discharging gas.
It is equipped with leachate reeirculation pipeline 9 on the top of each aerobic fermentation chamber 3, in landfill leachate collecting pit 5
Immersed pump 10 is installed；Leachate reeirculation pipeline 9 is connected to immersed pump 10.Garbage filter in landfill leachate collecting pit
Liquid is sprayed on demand by leachate reeirculation pipeline into the house refuse heap body in each aerobic fermentation chamber.In specific implementation,
Suitable construction can be arranged according to aerobic fermentation chamber size in leachate reeirculation pipeline, can be uniform by landfill leachate with guarantee
The house refuse to all areas is sprayed, such as can be used and several cross-perforating pipes are set under supervisor, then adds the side of spray head
Formula.
It is equipped with gas exhaust piping 13 at the top of each aerobic fermentation chamber 3, gas exhaust piping 13 is connected to by exhaust blower 14
Deodorizing tower 15.In specific implementation, deodorizing tower can be the deodorizing tower of the existing arbitrary structures that can reach required deodorizing effect.
Aerobic fermentation chamber group is that (as shown in Fig. 2, being semi-underground type) is arranged in full underground or semi-underground type.In specific implementation,
The construction method of aerobic fermentation chamber are as follows: garbage disposal place size is determined according to the amount of receiving house refuse, selected flat
The position that aerobic fermentation chamber is cooked up on whole place digs out the earthwork in the position for supporting fermentation cabin well, sets the rubbish of fermentation cabin
Entrance and exit is then divided into partition with two face wall of concreting (fermentation cabin concrete wall 3B as shown in Figure 2)
Several parallel warehouses (fermentation warehouse partition 3C as shown in Figure 2) of rectangular-shape, and entrance door is installed for each warehouse
And outlet portal.In the longitudinally fixed draining channel steel in the roof two sides of each aerobic fermentation chamber, the fixed girder steel in channel steel two sides constructs room
Frame, roof, then (fermentation cabin roof 3A as shown in Figure 2) is covered with required material at top, make each aerobic fermentation chamber structure
At closed space.The volume of each aerobic fermentation chamber is arranged on demand, can preferably accommodate 3~5 days house refuse amouns, such as each
Warehouse may be configured as high 5-15m, width 5-30m, long 30-100m.Entire garbage disposal site configures aerobic fermentation chamber 5 or more (such as
Fig. 1, it is 5 shown in 2), periodically rotation charging, fermentation, discharging uses, with specific reference to receiving quantity of refuse configuration.The row on roof
Sink steel is used as gutter and maintenance walkway simultaneously, exports rain water on roof, snow-broth to tank.
In specific implementation, the lower section of public 4 center of gallery is arranged in landfill leachate collecting pit 5, in garbage filter
Covering on liquid collecting pit 5 and intercepting gutter 6 has latticed comb water plate；The depth of intercepting gutter is 10-20cm.
In specific implementation, public gallery can be configured to ramped shaped and be connected with ground, both convenient for the wheeled machine for transporting
The disengaging of tool equipment, and rainwater is avoided to flow into public gallery.
Green plants layer can be set on the roof of aerobic fermentation chamber.In specific implementation: can be in the storehouse of aerobic fermentation chamber
The fertile soil of 20-40cm thickness is covered on top, thereon Turf Culture；Or pot flowers nursery stock is put in the silo roof of aerobic fermentation chamber
Greening.Green plants layer can beautify the environment.
In specific implementation, commercially available any a, preferably configuration as follows: by fresh life is can be used in biological deodorant
After the fermentation obtained by the aerobic fermentation of rubbish living and house refuse decomposed material according to mass ratio 2:1~4 after mixing, with 2~
10 times of water elution, obtains leachate；The leachate is uniformly mixed with saccharomycete according to mass ratio 1000:1~10, is obtained
It is inoculated with bacterium solution；Organic matter plus water are configured to the organic matter culture medium that mass concentration is 1~5%；Then bacterium solution will be inoculated with and had
After the 1~10:100 mixing by volume of machine object culture medium, add occupy machine amount of substance 1~10% ferriferous oxide mixing it is equal
Even, ferment 24~48h, obtains biological deodorant.Wherein, the organic matter for preparing culture medium is brown sugar, sucrose, glucose, lactic acid
At least one of salt, acetate, beef extract, molasses water, kitchen garbage or livestock waste, nano-iron oxide are by commercially available iron
Oxide or natural nano ferriferous oxide ore (such as oolitic hematite, limonite) crush the following powder of 100 mesh obtained.It is above-mentioned
Microorganism adds yeast in decomposed object after biological deodorant is fermented by the microorganism in Fresh Life rubbish, aerobic fermentation gained
Bacterium, ferriferous oxide enrichment culture are made.Microorganism therein is all indigenous microorganism, adapts to home environment；Ferriferous oxide with it is micro-
Biotic interactions improves microbial metabolism microenvironment, improves activity, improves the speed of decomposing organic matter；Biological deodorant packet
Containing amphimicrobe, facultative aerobe, aerobic bacteria, acts synergistically with the saccharomycete of addition, eliminate the foul odour substance in rubbish；And
Biological deodorant includes the microorganism for being suitable for fast breeding at various temperatures, and after being added in junk-heap body, junk-heap body increases
Peak temperature that is warm fast, reaching is high, biomass corruption stablize it is fast, rubbish fermentation is greatly shortened needed for the time.
The method for carrying out aerobic fermentation using above-mentioned house refuse aerobic fermentation system, includes the following steps:
Step 1 is stored in biological deodorant in biological deodorant holding vessel 2；
House refuse is poured into house refuse lower hopper 1, packaging bag is scratched by bag-breaking machine 11, and sprayed by biological deodorant
Device 12 sprays biological deodorant into house refuse lower hopper, keeps biological deodorant uniform with domestic garbage mixing；Biology removes
Smelly dose of additional amount is rubbish 0.5-5kg per ton；
Step 2 is added to the house refuse blanking of biological deodorant to public gallery 4, then successively moves into each aerobic hair
Ferment storehouse 3, each aerobic fermentation chamber laying close fermentation cabin access doors after buying securities with all one's capital, start to be laid with next aerobic fermentation chamber；
Step 3, from oxygen supply air blower 8 by ventilation channel 7 buy securities with all one's capital to laying after aerobic fermentation chamber in be continually fed into sky
Gas, to maintain aerobic state to start static fermentation, the landfill leachate dissolved oxygen that is passed through air capacity to flow out in aerobic fermentation chamber
It is control parameter greater than 0.5mg/L；
Each aerobic fermentation chamber is then pooled to after the landfill leachate gravity flow that fermentation process generates is pooled to intercepting gutter 6
Landfill leachate collecting pit 5；
First 5 days of fermentation are sprayed from leachate reeirculation pipeline 9 into aerobic fermentation chamber at interval of 4h by immersed pump 10
A landfill leachate is drenched, persistently sprays 1h every time, to maintain moisture needed for the fermentation of house refuse heap body in aerobic fermentation chamber；
Standing for fermentation stops spray after 5 days, continue fermentation 5-10 days, makes biomass organic matter degradation in house refuse, decomposed, stable,
Moisture is evaporated, decomposed material after loose, odorless fermentation is obtained；
Exhaust gas caused by aerobic fermentation chamber fermentation process is extracted out by exhaust blower 14 from gas exhaust piping 13, is sent to removing
Smelly 15 deodorization of tower；
Each aerobic fermentation chamber independently carries out aerobic fermentation；
Step 4 stops ventilation after fermentation, opens the outlet portal of aerobic fermentation chamber, clears out decomposed material after fermentation.
Decomposed material is combined and is sorted by screening, electromagnetic separation and selection by winnowing after step 5, gained fermentation, is sub-elected
Fertile soil, wooden, rubber, fabric, metal, plastics, glass, ceramics, brick and tile and stone；
Gained fertile soil is used as stock growing greening nutritive soil；Gained metal, which is sent to smeltery, to be regenerated；The washing of gained plastics
Being granulated after drying becomes regenerated plastics master batch；Gained glass, ceramics, brick and tile and stone are used as construction material；Gained is wooden, rubber
Glue, fabric are used as fuel thermal decomposition gasification or directly the burning recycling energy.
Claims (9)
1. a kind of free of contamination house refuse aerobic fermentation system, it is characterised in that: including house refuse lower hopper (1), biology
Deodorant holding vessel (2) and aerobic fermentation chamber group；
Bag-breaking machine (11) are provided in the house refuse lower hopper (1)；
It is additionally provided with biological deodorant flusher (12) in the house refuse lower hopper (1), the biological deodorant spray
It spills device (12) and the biological deodorant holding vessel (2) is connected to by pipeline；
The aerobic fermentation chamber group is arranged in parallel by several closed aerobic fermentation chambers (3), and the one of the aerobic fermentation chamber (3)
Face is equipped with access doors, opposite another side is equipped with outlet portal；One is provided at the access doors of each aerobic fermentation chamber (3) to share
Public gallery (4)；The discharge port of the house refuse lower hopper (1) is arranged in the top of the public gallery (4)；
Landfill leachate collecting pit (5) are arranged in the public gallery (4)；The ground of the aerobic fermentation chamber (3) is in oblique
Ramp shaped, descending side are provided with intercepting gutter (6)；Intercepting gutter (6) confluence of each aerobic fermentation chamber is connected to the landfill leachate
Collecting pit (5)；
It is equipped with ventilation channel (7) in the bottom of each aerobic fermentation chamber (3), the ventilation channel (7) is connected to oxygen supply air blower
(8)；
Leachate reeirculation pipeline (9) are equipped on the top of each aerobic fermentation chamber (3), in the landfill leachate collecting pit
(5) immersed pump (10) are installed in；The leachate reeirculation pipeline (9) is connected to the immersed pump (10)；
Gas exhaust piping (13) are equipped at the top of each aerobic fermentation chamber (3), the gas exhaust piping (13) passes through exhaust blower
(14) deodorizing tower (15) are connected to.
2. a kind of free of contamination house refuse aerobic fermentation system according to claim 1, it is characterised in that: described aerobic
Fermentation cabin group is that full underground or semi-underground type are arranged.
3. a kind of free of contamination house refuse aerobic fermentation system according to claim 1, it is characterised in that: described aerobic
The ground of fermentation cabin from apart from intercepting gutter farther out a side to the gradient of intercepting gutter side be 3-5%, from outlet portal side to import
The gradient of door side is 0.3-1%.
4. a kind of free of contamination house refuse aerobic fermentation system according to claim 1, it is characterised in that: described aerobic
The quantity of aerobic fermentation chamber is no less than 5 in fermentation cabin group.
5. a kind of free of contamination house refuse aerobic fermentation system according to claim 1, it is characterised in that: described aerobic
Fermentation cabin in a rectangular parallelepiped shape, high 5-15m, width 5-30m, long 30-100m.
6. a kind of free of contamination house refuse aerobic fermentation system according to claim 1, it is characterised in that: described good
The roof two sides in aerobe fermentation storehouse are fixed with draining channel steel.
7. a kind of carry out aerobic fermentation using house refuse aerobic fermentation system described in any one of claim 1~6
Method, which comprises the steps of:
Step 1 is stored in biological deodorant in the biological deodorant holding vessel (2)；
House refuse is poured into house refuse lower hopper (1), packaging bag is scratched by bag-breaking machine (11), and sprayed by biological deodorant
Device (12) sprays biological deodorant into house refuse lower hopper, keeps biological deodorant uniform with domestic garbage mixing；
Step 2 is added to the house refuse blanking of biological deodorant to public gallery (4), then successively moves into each aerobic fermentation
Storehouse (3), each aerobic fermentation chamber laying close fermentation cabin access doors after buying securities with all one's capital, start to be laid with next aerobic fermentation chamber；
Step 3, from oxygen supply air blower (8) by ventilation channel (7) buy securities with all one's capital to laying after aerobic fermentation chamber in be continually fed into sky
Gas, the landfill leachate dissolved oxygen for being passed through air capacity to flow out in aerobic fermentation chamber are greater than 0.5mg/L as control parameter, to maintain
Aerobic state starts static fermentation；
Each aerobic fermentation chamber is then pooled to rubbish after the landfill leachate gravity flow that fermentation process generates is pooled to intercepting gutter (6)
Rubbish leachate collection pool (5)；
First 5 days of fermentation are sprayed from leachate reeirculation pipeline (9) into aerobic fermentation chamber at interval of 4h by immersed pump (10)
A landfill leachate is drenched, persistently sprays 1h every time, to maintain moisture needed for the fermentation of house refuse heap body in aerobic fermentation chamber；
Standing for fermentation stops spray after 5 days, continue fermentation 5-10 days, makes biomass organic matter degradation in house refuse, decomposed, stable,
Moisture is evaporated, decomposed material after loose, odorless fermentation is obtained；
Exhaust gas caused by aerobic fermentation chamber fermentation process is extracted out by exhaust blower (14) from gas exhaust piping (13), is sent to removing
Smelly tower (15) deodorization；
Each aerobic fermentation chamber independently carries out aerobic fermentation；
Step 4 stops ventilation after fermentation, opens the outlet portal of aerobic fermentation chamber, clears out decomposed material after fermentation.
8. according to the method described in claim 7, it is characterized by: the additional amount of biological deodorant described in step 1 is per ton
Rubbish 0.5-5kg.
9. according to the method described in claim 7, it is characterized by: gained fermentation after decomposed material by screening, electromagnetic separation and
Selection by winnowing, which combines, to be sorted, sub-elect fertile soil, wooden, rubber, fabric, metal, plastics, glass, ceramics, brick and tile and
Stone；
Gained fertile soil is used as stock growing greening nutritive soil；Gained metal, which is sent to smeltery, to be regenerated；Gained plastics wash drying
Being granulated afterwards becomes regenerated plastics master batch；Gained glass, ceramics, brick and tile and stone are used as construction material；Gained is wooden, rubber, fibre
It ties up fabric and is used as fuel thermal decomposition gasification or directly the burning recycling energy.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| WO2022233259A1 (en) * | 2021-05-06 | 2022-11-10 | 南京大学 | Container equipment for closed transportation and ectopic aerobic stabilization of stock garbage and method therefor |
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| CN111570467A (en) * | 2020-04-30 | 2020-08-25 | 南京大学 | Ectopic aerobic reinforced stabilization system and method for stored household garbage |
| CN111570467B (en) * | 2020-04-30 | 2021-11-16 | 南京大学 | Ectopic aerobic reinforced stabilization system and method for stored household garbage |
| WO2022233259A1 (en) * | 2021-05-06 | 2022-11-10 | 南京大学 | Container equipment for closed transportation and ectopic aerobic stabilization of stock garbage and method therefor |
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