CN101695708B - Method for in-situ repair of waste pile - Google Patents
Method for in-situ repair of waste pile Download PDFInfo
- Publication number
- CN101695708B CN101695708B CN2009102104907A CN200910210490A CN101695708B CN 101695708 B CN101695708 B CN 101695708B CN 2009102104907 A CN2009102104907 A CN 2009102104907A CN 200910210490 A CN200910210490 A CN 200910210490A CN 101695708 B CN101695708 B CN 101695708B
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- Prior art keywords
- junk
- heap body
- blowing
- air
- rubbish
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- 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
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- 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
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/78—Recycling of wood or furniture waste
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for the in-situ repair of a waste pile. In the method, the stabilization of the waste pile is accelerated by grid regionalization, surface sealing by a film, embedment of a polypropylene perforated pipe, on-line monitoring and air exhaust and blowing by a computer program, the stabilized waste is crushed and screened, metals are recovered, and other components aredeeply processed to produce energy, organic granular fertilizers, building materials and the like. The method can quickly eliminate environmental pollution caused by waste in situ and realize the reclamation and hazard-free treatment of waste.
Description
Technical field
The invention belongs to the in-situ remediation method of the environmental technology field, particularly a kind of junk-heap body of solid waste processing.
Background technology
Owing to reasons such as environmental consciousness are poor, backward in technique, a lot of rubbish of past are by natural stacking, and its anaerobic degradation process produces a large amount of percolates, methane, bioaerosol, stench etc., serious environment pollution.Particularly junk-heap body is occupied a large amount of soils, and decades even upward century-old could stablizing are caused the significant wastage of land resource.Therefore, how to eliminate the ambient influnence of junk-heap body fast, reclaim the resource and the energy, recover the soil value and caused extensive concern.The method of eliminating the junk-heap body pollution at present mainly contains: 1) clear processing such as transferring to sanitary filling field, garbage burning factory to junk-heap body; But transportation and processing cost are higher; And can produce stench, percolate and problems such as secondary environmental pollution such as spill, can't really solve the refuse pollution problem.2) air-blowing method promptly through air-blowing in junk-heap body, keeps the skin wet and nutritive salt, improves the metabolic activity of microorganism, and the quick degraded of quickening rubbish is stable.But the organic matter degradation that this technology is primarily aimed in the rubbish is rather effective, but other pollutants such as plastics, rubber, glass are difficult to thorough elimination, particularly after air-blowing, possibly quicken the environment release of materials such as heavy metal, causes secondary pollution.
The present invention waits through screening then and reclaims resource through intelligent rapid stabilization junk-heap body, recovers the soil value, thoroughly eliminates environmental pollution.
Summary of the invention
The objective of the invention is junk-heap body in position, avoid transferring the pollution of rubbish, and recover the soil value, do not produce secondary pollution.The present invention at first carries out gridding to junk-heap body and handles, the heeling-in perforated pipe, and humidity, methane transducer on-line monitoring are installed in perforated pipe; Sensor signal is imported computer into through wireless network, utilizes computer program to bleed and the air-blowing moisturizing, quickens junk-heap body and stablizes; Characterizing the junk-heap body stabilized factor is percolate chemical oxygen demand COD＜1500mg/L; The ratio of biochemical oxygen demand (BOD) and COD, i.e. BOD/COD＜0.1, rubbish does not have obvious stink; Rubbish after stable is through broken, screening; Reclaim metal; Other composition through the advanced treating produce power, produce organic granular fertilizer and construction material, thoroughly eliminate junk-heap body to surrounding enviroment such as atmosphere, soil, underground water etc. environmental pollution, recover land values.
The in-situ remediation method of the junk-heap body that the present invention proposes, its process chart is referring to accompanying drawing 1.
The technical process that relates to is specific as follows:
(1) gridding is handled; The reparation unit of delimiting
; At junk-heap body surface coverage density polyethylene film with high; It is the HDPE film; Each is repaired the unit central robot and bores a hole to 30-50cm place, rubbish bottom; The polypropylene antipriming pipe of heeling-in DN100mm in the hole, aperture are
every square meter 20-50 hole.
(2) humidity, methane transducer are installed in each embedding polypropylene perforated pipe, sensor signal is imported computer into through wireless network, utilizes that computer program control is bled, the conversion of air-blowing timing node.Bleed and control by computer program with the air-blowing system, through explosion-proof roots blower and pipeline realization.Extract system adopt the Roots blower vacuum suction with landfill gas with negative pressure state by extracting out in the gas collection well.Its rate of air sucked in required is regulated and control by magnetic valve, and suction pressure is regulated by Roots blower, to obtain stable gas production.The air-blowing system also utilizes same Roots blower, and air quantity and blast are by solenoid control.Adopt when methane concentration is lower than 5% under the state of bleeding, and 1 all interior methane concentrations do not reach 5% after stopping to bleed, and stop to bleed; Then to the junk-heap body air-blowing, the air-blowing amount is utilized computer program control, usually every cube of rubbish additional 2-4 cube of air every day.
(3) this method sign junk-heap body stabilized factor is percolate chemical oxygen demand COD＜1500mg/L; The ratio of biochemical oxygen demand (BOD) and COD, i.e. BOD/COD＜0.1, rubbish does not have obvious stink; Think that promptly junk-heap body has reached the stabilisation level, can sieve.
(4) the broken thread hob disintegrating machine that adopts carries out fragmentation, and broken thing gets into the screening of disc type screening machine, reclaims metal, and the plastics in the oversize, bamboo wood, rubber material get into the combustion furnace burning, and screenings is mainly the organic matter that becomes thoroughly decomposed, sandstone, glass.
(5) advanced treating is isolated the organic matter that becomes thoroughly decomposed to screenings through the water rotary separator; Become thoroughly decomposed organic matter through centrifugal dehydration, 90-120 ℃ of dry 1-2 hour, process organic granular fertilizer after adding nutrient, granulations such as P, K; And other material, promptly sandstone, glass, clay are processed construction material through fine crushing, binding agent bonding process.Combustible reclaims electric energy and heat energy through combustion power generation on the biogas that junk-heap body produces, the sieve, thereby the energy of having realized rubbish reclaims.
Advantage of the present invention
1. the present invention adopts based technique for in-situ remediation, promptly directly on junk-heap body, implements, and the outer soil of occupying volume does not produce secondary pollution, is a kind of good refuse pollution technology for eliminating.
2. the present invention makes full use of junk-heap body biogas energy, oversize burns heat, has reclaimed the energy, has practiced thrift processing cost, has realized energy balance.
3. the present invention adopts the HDPE film to cover, and makes junk-heap body be in the enclosed and controllable state, has avoided loss such as stench, microbial aerosol.
4. screenings revolves separation through water, and the efficiency of separation is high, and energy consumption is low, effectively sub-elects decomposed organic matter, and the fertilizer nutritive proportion of processing is suitable, reaches national fertilizer standard.
5. the operation of whole system can realize Digital Control, is a kind of digitlization garbage treating process, the computer program of exploitation, and friendly interface, applicability is strong.
The specific embodiment
Original position reparation with certain 500m * 250m * 15m place where the garage is piled up is an example, at first covers density polyethylene film with high, i.e. HDPE film, airtight junk-heap body; Be divided into 200 gridding unit by
then; The dark perforated pipe of 15.5-25 rice is installed in each unit; Each unit central robot is bored a hole to 30-50cm place, rubbish bottom; Humidity, methane transducer are installed in each embedding polypropylene perforated pipe; Sensor signal is imported computer into through wireless network, utilizes that computer program control is bled, the conversion of air-blowing timing node.Bleed and control by computer program with the air-blowing system, through explosion-proof roots blower and pipeline realization.Extract system adopt the Roots blower vacuum suction with landfill gas with negative pressure state by extracting out in the gas collection well.Its rate of air sucked in required is regulated and control by magnetic valve, and suction pressure is regulated by Roots blower, to obtain stable gas production.The air-blowing system also utilizes same Roots blower, and air quantity and blast are by solenoid control.Adopt when methane concentration is lower than 5% under the state of bleeding, and 1 all interior methane concentrations do not reach 5% after stopping to bleed, and stop to bleed; Then, utilize the computer self switching solenoid valve, then to the junk-heap body air-blowing, the air-blowing amount is utilized computer program control, usually every cube of rubbish additional 2-4 cube of air every day.
In order to promote the fast and stable of junk-heap body, this perforated pipe also can be used for recharging the percolate that junk-heap body produces.It is following that the junk-heap body stabilisation defines index: the COD concentration of (1) percolate is lower than 1500mg/L, BOD/COD＜0.1; (2) rubbish does not have obvious stink, is pitchy.When the proterties of rubbish and percolate reach These parameters, can carry out the refuse breaking screening.Put into the thread hob disintegrating machine that is positioned on the junk-heap body to rubbish by grab claw, the rubbish after the fragmentation is sent into the disc grizzly extension set through transmission belt, divides and elects the three major types material as: metal, oversize, screenings.Oversize mainly contains bamboo wood, plastics, rubber combustible, sends into the combustion furnace burning after the packaged, reclaims heat; Screenings revolves separator through water and sub-elects organic matter and heavy substance, and organic matter adds P, K nutrient through centrifugal dehydration, after oven dry and granulation under 90-120 ℃, processes granular organic fertilizer; And heavy substance, promptly sandstone, clay carry out fine crushing, add inorganic oxide type binding agent, stir to form slurry, and the gained slurry is injected mould, and curing molding is processed construction material.
Claims (5)
1. the in-situ remediation method of a junk-heap body; It is characterized in that:, humidity, methane transducer are installed in the embedding polypropylene antipriming pipe, each PA tube through gridding processing, film sealing surfaces; On-line monitoring; In computer, utilize computer program to bleed and air-blowing through wireless network transmissions, control is bled, the conversion of air-blowing timing node; Under the state of bleeding, methane concentration is lower than at 5% o'clock, and 1 all interior methane concentrations do not reach 5% after stopping to bleed, and stop to bleed, and to the junk-heap body air-blowing, the air-blowing amount is utilized computer program control; Quicken the stable of junk-heap body, the rubbish after stable reclaims metal through broken, screening, other compositions through the advanced treating produce power, produce fertilizer and construction material.
2. the in-situ remediation method of a kind of junk-heap body according to claim 1; It is characterized in that: gridding is handled; Promptly cover density polyethylene film with high at junk-heap body; Delimit the reparation unit of Ф 5-25m, each repairs the 30-50cm place, polypropylene antipriming pipe to rubbish bottom that the heeling-in of unit central authorities gathers DN100mm.
3. the in-situ remediation method of a kind of junk-heap body according to claim 1; It is characterized in that: characterizing the junk-heap body stabilized factor is percolate chemical oxygen demand COD＜1500mg/L; The ratio of biochemical oxygen demand (BOD) and COD, i.e. BOD/COD＜0.1, rubbish does not have obvious stink.
4. the in-situ remediation method of a kind of junk-heap body according to claim 1; It is characterized in that: the broken thread hob disintegrating machine that adopts carries out fragmentation; Broken thing gets into the screening of disc type screening machine; Reclaim metal, the plastics in the oversize, bamboo wood, rubber get into the combustion furnace burning, and screenings is mainly the organic matter that becomes thoroughly decomposed, sandstone, glass.
5. the in-situ remediation method of a kind of junk-heap body according to claim 1; It is characterized in that: advanced treating is isolated the organic matter that becomes thoroughly decomposed to screenings through the water rotary separator; The organic matter that becomes thoroughly decomposed is processed organic granular fertilizer after drying, nutrition-allocated proportion, granulation, and sandstone, glass, clay through broken, add binding agent and process construction material; Combustible reclaims electric energy and heat energy through combustion power generation on the biogas that junk-heap body produces, the sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102104907A CN101695708B (en) | 2009-11-04 | 2009-11-04 | Method for in-situ repair of waste pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102104907A CN101695708B (en) | 2009-11-04 | 2009-11-04 | Method for in-situ repair of waste pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101695708A CN101695708A (en) | 2010-04-21 |
| CN101695708B true CN101695708B (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102104907A Expired - Fee Related CN101695708B (en) | 2009-11-04 | 2009-11-04 | Method for in-situ repair of waste pile |
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| CN (1) | CN101695708B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252338B (en) * | 2013-04-16 | 2015-04-08 | 江苏德鑫环保科技有限公司 | In-situ belueftung treatment device oriented to town refuse landfill |
| CN114210717B (en) * | 2021-07-28 | 2024-03-08 | 巨锋 | Method for recycling aged garbage |
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- 2009-11-04 CN CN2009102104907A patent/CN101695708B/en not_active Expired - Fee Related
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| CN101695708A (en) | 2010-04-21 |
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Effective date of registration: 20151221 Address after: 100048, room 6, building 91, national cultural building, No. 3 West Third Ring Road, Haidian District, Beijing, Patentee after: Beijing Haohai Tianji Technology Co., Ltd. Patentee after: Jilin Hao Hai horizon Technology Co., Ltd. Address before: 100096 building 717, block B, building, Beijing, Haidian District Patentee before: Beijing Haohai Tianji Technology Co., Ltd. |
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Granted publication date: 20120208 Termination date: 20191104 |
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