CN105363759B - Flexible landfill yard rigidity landfill stabilization device and burying method - Google Patents
Flexible landfill yard rigidity landfill stabilization device and burying method Download PDFInfo
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- CN105363759B CN105363759B CN201510790257.6A CN201510790257A CN105363759B CN 105363759 B CN105363759 B CN 105363759B CN 201510790257 A CN201510790257 A CN 201510790257A CN 105363759 B CN105363759 B CN 105363759B
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- 230000006641 stabilisation Effects 0.000 title claims abstract description 16
- 238000011105 stabilization Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 8
- 150000003839 salts Chemical class 0.000 claims abstract description 36
- 239000004567 concrete Substances 0.000 claims abstract description 31
- 239000003818 cinder Substances 0.000 claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 28
- 239000002893 slag Substances 0.000 claims abstract description 17
- 239000004568 cement Substances 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 238000005260 corrosion Methods 0.000 claims abstract description 8
- 239000003973 paint Substances 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 7
- 229920003023 plastic Polymers 0.000 claims abstract description 7
- 238000011049 filling Methods 0.000 claims abstract description 4
- 238000007711 solidification Methods 0.000 claims description 8
- 230000008023 solidification Effects 0.000 claims description 8
- 239000004746 geotextile Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000002689 soil Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 210000004243 sweat Anatomy 0.000 description 2
- 241000165940 Houjia Species 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920005551 calcium lignosulfonate Polymers 0.000 description 1
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 229920006262 high density polyethylene film Polymers 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229940098458 powder spray Drugs 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000010563 solid-state fermentation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of flexible landfill yard rigidity landfill stabilization device and burying method, set up several waste pits separately in landfill yard, several rigid cinder concrete coffins are sequentially provided with waste pit vertical direction, several evenly distributed rigid spaces are provided with the rigid cinder concrete coffin, rigid space, which by clinker and cement is aided with reinforcing bar and poured in rigid cinder concrete coffin, to be formed, the inwall of the rigid space scribbles anti-corrosion leak-proof paint or built-in plastic containers, filling pours cinder concrete and is aided with reinforcing bar between adjacent rigid space, the top of rigid space is provided with closure, rigid cinder concrete coffin bottom of the closure at top as top；It is sequentially provided with fine slag, abraum salt, clinker, rain-proof film and closure from the bottom up in rigid space.The flexible landfill yard rigidity landfill stabilization device of the present invention,, also will not be safe into large-scale pollution even if local leakage occurs for landfill area by the way that landfill is distinguished into multiple independent rigid spaces.
Description
Technical field
The present invention relates to flexible landfill yard rigidity landfill stabilization device and burying method, belong to Solid state fermentation field.
Background technology
Yancheng Region possesses great Feng, Xiangshui County and strand Deng Ji great chemical industrial parks, is related to medicine, agricultural chemicals, daily-use chemical industry, sewage
The big-and-middle-sized chemical enterprises such as improvement, each large enterprises can produce the semisolids such as substantial amounts of abraum salt or solid-state danger in chemical process
Dangerous waste, has greater environmental impacts；And the ease of solubility such as existing abraum salt dangerous waste is directly filled after being conserved using cement solidification, to soft
Property landfill yard for, abraum salt dissolubility is strong, and the possibility of seepage is larger, greatly risk be present, for area environment exist
Very big potential safety hazard.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of ease of solubility dangerous wastes such as abraum salt
Landfill stabilization device and burying method, by removing to be divided into several independent rigid spaces landfill, reduce pollution and expand, increase
Security is added.
Technical scheme：In order to solve the above technical problems, a kind of flexible landfill yard rigidity landfill stabilization device of the present invention,
Landfill yard has dug several waste pits, and several rigid cinder concrete coffins, institute are sequentially provided with waste pit vertical direction
State in rigid cinder concrete coffin and be provided with several evenly distributed rigid spaces, rigid space is aided with reinforcing bar by clinker and cement
Pouring to be formed in rigid cinder concrete coffin, the inwall of the rigid space scribbles anti-corrosion leak-proof paint or built-in plastic containers,
Filling pours cinder concrete and is aided with reinforcing bar between adjacent rigid space, and the top of rigid space is provided with closure, top
Closure as top rigid cinder concrete coffin bottom；It is sequentially provided with fine slag from the bottom up in rigid space, gives up
Salt, clinker, rain-proof film and closure.
Preferably, spaced apart in the waste pit be provided with air guide french drain, air guide french drain is equipped with airway tube.
Preferably, the geotextiles for preventing particulate from entering airway tube are provided with the air guide french drain.
One layer of air guide french drain is started setting up after waste pit landfill 80~100cm height, it is high often to fill 60~70cmcm
Degree sets one layer of air guide french drain, and air guide french drain is equipped with airway tube, Φ 50-120 grains are filled between air guide french drain and airway tube
The graded broken stone in footpath, air guide pipe surface axially offer through hole, and airway tube stretches out buring layer in buring layer highest point, it would be possible to
Caused gas discharge.
A kind of burying method of above-mentioned flexible landfill yard rigidity landfill stabilization device, comprises the following steps：
(1) go to dig multiple waste pits in landfill, in waste pit using clinker and cement be aided with reinforcing bar pour it is multiple just
Property cinder concrete coffin, inwall brushing anti-corrosion leak-proof paint or built-in plastic containers in rigid cinder concrete coffin；
(2) it is hardness is larger and in big block abraum salt crusher in crushing, all abraum salts doping flying dust, cement, water
Mix and solidify with stabilizer, blanking conserves 2~3 days into curing mold, abraum salt area is delivered to again after qualified；
(3) one layer of fine slag is first laid in the rigid space bottom, then the abraum salt after solidification is put on fine slag,
Air guide french drain is laid in abraum salt, air guide french drain lays one layer of clinker, Ran Houjia by airway tube and atmosphere on abraum salt
Lid rain-proof film, covers closure；
(4) one layer of thin stove and then bottom of the closure as last layer rigidity cinder concrete coffin, is laid on closure
Slag, then the abraum salt after solidification is put on fine slag, in abraum salt lay air guide french drain, air guide french drain by airway tube with
Atmosphere, one layer of clinker is laid on abraum salt, be then capped rain-proof film, cover another closure；
(5) repeat step (4), until landfill is completed.
In the present invention, certain altitude is arrived in landfill, such as during 80-100cm, sets DN300's at interval of 60m in reservoir area
Air guide french drain, laying DN150 HDPE airway tubes in french drain, air guide french drain liner 200g geotextiles are to prevent particulate from entering air guide
French drain simultaneously enters airway tube gradually, and the graded broken stone of Φ 50-120 particle diameters, airway tube are filled between air guide french drain and airway tube
Surface axial aperture spacing 100mm, airway tube use sweat soldering, stretch out buring layer in buring layer highest point, it would be possible to produce
Raw gas discharge.Landfill tip height often increases 80-100cm, re-lays one layer of horizontal air guiding layer.In landfill yard landfill material
There is a small amount of biological sludge, caused narrow-minded, the gas of collection and the foul gas of leachate equalization basin spray by alkali lye together
After leaching+activated-carbon device absorption, then arranged to air by the high aiutages of 15m.
In actual landfill operation of the invention, settlement issues are most important, and sedimentation value crosses conference and causes tearing for seepage control system
Pull open and split, destroy the safety and stability of landfill yard, pollution is brought for surrounding enviroment.The landfill yard characteristic value of foundation bearing capacity requirement of this department
Reach 120KN/m2, design is using the progress foundation stabilization of the powder-spray piles of φ 500.It is -8.0 meters to fill area foundation ditch bottom absolute altitude, and ground is just
Fall on 4 layers of silt well, and composite foundation enters 5. layer flour sand and is no less than 1.0m, actual carrying capacity should be in 150KN/m2, i.e.,
15 tons/square, reservoir area substrate largest settlement are 1.086m.The generation of HDPE film maximum tension rate is domatic in waste burying, is
1.4%, less than HDPE geomembrane maximums yield elongation rate 3%, seepage control system will not be destroyed, is met《Hazard waste landfill pollutes
Control standard》Requirement, be deposited in seepage control system allowed band.
Landfill yard vertical seepage control using three axes agitating pile construct, using set manual labour skill, material by 25% 42.5 silicate
Cement, 30% multiple spraying cement, 0.05% triethanolamine, 0.2% calcium lignosulfonate are mixed, and mixing pile intensity qu28d >=
1.0MPa, infiltration coefficient enter infiltration coefficient less 2 at 1-5 × 10-6cm/s, pile tube total length 23m, underground mixing pile stake end
Layer very soft sill clay layer, into 6. 2 layers of about 3.1m.The pressure of waste deadweight side slope is in vertical seepage control system tolerance range
It is interior.From the point of view of building data according to landfill yard, I takes charge of landfill yard and belongs to Class C building, and substrate is in the 5th layer of soil, Soft Soil Layer shearing
Value of wave speed is all higher than 90m/s, therefore can not consider sand liquefaction and the sunken influence to landfill yard of weak soil shake.
Beneficial effect：The flexible landfill yard rigidity landfill stabilization device of the present invention, by the way that landfill is distinguished into multiple independences
Rigid space, also will not be safe into large-scale pollution even if landfill goes that local leakage occurs；And rigid space
Poured with cinder concrete, be provided with anti-corrosion leak-proof paint inside rigid space, stove is equipped with the bottom of rigid space and top
Slag, top are additionally provided with rain-proof film, single rigid space good airproof performance, reduce the generation of pollution.
Brief description of the drawings
Fig. 1 is the structural representation of rigid space in the present invention；
Fig. 2 is the schematic cross-section of the rigid cinder concrete coffin of the present invention；
Fig. 3 is the distribution schematic diagram of air guide french drain and airway tube；
Fig. 4 is the distribution schematic diagram of one layer of air guide french drain.
Embodiment
As shown in Figures 1 to 4, a kind of flexible landfill yard rigidity landfill stabilization device of the invention, sets up four separately in landfill yard
Individual waste pit, the size of waste pit is 25m*25m*8m, and 5 rigid clinkers are sequentially provided with each waste pit vertical direction and are mixed
Native coffin 1 is coagulated, the size of rigid cinder concrete coffin 1 is 25m*25m*1.5m, and it is equal to be provided with several in rigid cinder concrete coffin 1
The rigid space 6 of even arrangement, rigid space 6 are a diameter of 1.2m, high 1.5m cylindrical space, and rigid space 6 is by clinker 63
It is aided with reinforcing bar with cement to pour to be formed in rigid cinder concrete coffin 1, the inwall of the rigid space 6 scribbles anti-corrosion leak-proof paint
Or built-in plastic containers, adjacent rigid space 6 at intervals of 0.2m, between adjacent rigid space 6 filling it is mixed to pour clinker 63
Solidifying soil is simultaneously aided with reinforcing bar, ensures that gap is filled up, is filled close to side slope region with the gravel-concrete solidified waste of clinker 63, rigidity is empty
Between 6 top be provided with closure 65, the rigid bottom of cinder concrete coffin 1 of the closure 65 at top as top；In rigid sky
Between be sequentially provided with fine slag 61, abraum salt, clinker 63, rain-proof film 64 and closure 65 from the bottom up in 6.
In the present invention, spaced apart in the waste pit to be provided with one layer of air guide french drain 4, one layer of air guide french drain 4 is equal
Cloth is in rigid space 6, as shown in figure 4, air guide french drain 4 is equipped with airway tube 3, Φ is filled between air guide french drain and airway tube
The graded broken stone of 50-120 particle diameters, the surface of airway tube 3 axially offer through hole 5, and airway tube 3 uses sweat soldering, filled
Layer highest point stretches out buring layer, it would be possible to which caused gas discharge, interior be provided with of the air guide french drain 4 prevent particulate from entering airway tube
3 geotextiles.Air guide french drain 4 is started setting up after waste pit fills 80~100cm height, 60cm is often filled and air guide is highly set
French drain 4.
A kind of burying method of above-mentioned flexible landfill yard rigidity landfill stabilization device, comprises the following steps：
(1) go to dig four waste pits in landfill, in waste pit using clinker 63 and cement be aided with reinforcing bar pour it is multiple
Rigid cinder concrete coffin 1, inwall brushing anti-corrosion leak-proof paint or built-in plastic containers in rigid cinder concrete coffin 1；
(2) it is hardness is larger and in big block abraum salt crusher in crushing, all abraum salts doping flying dust, cement, water
Mix and solidify with stabilizer, blanking conserves 2~3 days into curing mold, abraum salt area is delivered to again after qualified；
(3) one layer of 25cm fine slag 61 is first laid in the bottom of rigid space 6, forms cushion, protects firming body, will
Firming body is discharged in order, and then the abraum salt after solidification is put on fine slag 61, and air guide french drain 4, air guide are laid in abraum salt
French drain 4 lays one layer of clinker 63 on abraum salt, thickness 25cm, is then capped rain-proof film by airway tube 3 and atmosphere
64, cover closure 65；
(4) one layer and then bottom of the closure 65 as last layer rigidity cinder concrete coffin 1, is laid on closure 65
Fine slag 61, then the abraum salt after solidification is put on fine slag 61, air guide french drain 4 is laid in abraum salt, air guide french drain 4 is logical
Airway tube 3 and atmosphere are crossed, one layer of clinker 63 is laid on abraum salt, rain-proof film 64 is then capped, covers another closure
65；
(5) repeat step (4), until landfill is completed.
In the present invention, abraum salt can be not only handled, also ease of solubility dangerous waste can be handled simultaneously, play good processing
Effect.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
- A kind of 1. flexible landfill yard rigidity landfill stabilization device, it is characterised in that：Set up several waste pits separately in landfill yard, filling out Bury and several rigid cinder concrete coffins are sequentially provided with the vertical direction of hole, several are provided with the rigid cinder concrete coffin Evenly distributed rigid space, the rigid space are aided with reinforcing bar in rigid cinder concrete coffin by clinker and cement and pour shape Into the inwall of the rigid space scribbles anti-corrosion leak-proof paint or built-in plastic containers, fills and pours between adjacent rigid space Cinder concrete is simultaneously aided with reinforcing bar, and the top of rigid space is provided with closure, the rigid clinker of the closure at top as top Concrete coffin bottom；It is sequentially provided with fine slag, abraum salt, clinker, rain-proof film and closure from the bottom up in rigid space；It is described Spaced apart in waste pit to be provided with air guide french drain, air guide french drain is equipped with airway tube.
- 2. flexible landfill yard rigidity landfill stabilization device according to claim 1, it is characterised in that：In the air guide french drain Enter the geotextiles of airway tube provided with particulate is prevented.
- 3. flexible landfill yard rigidity landfill stabilization device according to claim 2, it is characterised in that：The waste pit landfill One layer of air guide french drain is started setting up after 80~100cm height, 60~70cm is often filled and one layer of air guide french drain is highly set, air guide is blind Ditch is equipped with airway tube, and the graded broken stone of Φ 50-120 particle diameters, air guide pipe surface axle are filled between air guide french drain and airway tube To through hole is offered, airway tube stretches out buring layer in buring layer highest point, it would be possible to caused gas discharge.
- 4. a kind of burying method using flexible landfill yard rigidity landfill stabilization device according to claim 3, its feature It is：Comprise the following steps：(1) multiple waste pits are dug in landfill area, being aided with reinforcing bar using clinker and cement in waste pit pours multiple rigid stoves Dreg concrete coffin, inwall brushing anti-corrosion leak-proof paint or built-in plastic containers in rigid cinder concrete coffin；(2) it is hardness is larger and in big block abraum salt crusher in crushing, all abraum salts doping flying dust, cement, water and steady Determine agent and mix solidification, blanking conserves 2~3 days into curing mold, abraum salt area is delivered to again after qualified；(3) one layer of fine slag is first laid in the rigid space bottom, then the abraum salt after solidification is put on fine slag, useless Laying air guide is blind in salt, and air guide is blind to be connected by airway tube with landfill yard exhaust-gas treatment facilities, and one layer of clinker is laid on abraum salt, Then rain-proof film is capped, covers closure；(4) and then bottom of the closure as last layer rigidity cinder concrete coffin, one layer of fine slag is laid on closure, so The abraum salt after solidification is put on fine slag afterwards, air guide french drain is laid in abraum salt, air guide french drain passes through airway tube and air Connection, one layer of clinker is laid on abraum salt, be then capped rain-proof film, cover another closure；(5) repeat step (4), until landfill is completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510790257.6A CN105363759B (en) | 2015-11-17 | 2015-11-17 | Flexible landfill yard rigidity landfill stabilization device and burying method |
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| CN105363759A CN105363759A (en) | 2016-03-02 |
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| CN108526189B (en) * | 2018-05-14 | 2019-11-22 | 镇江新区固废处置股份有限公司 | A kind of rain-proof membrane covering method for solid waste landfill region |
| CN111375617A (en) * | 2018-12-29 | 2020-07-07 | 清大国华环境集团股份有限公司 | Barreled landfill method for industrial waste salt |
| CN111744926A (en) * | 2020-06-10 | 2020-10-09 | 中节能（连云港）清洁技术发展有限公司 | Method for solidifying soluble semi-solid waste salt |
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| CN205436570U (en) * | 2015-11-17 | 2016-08-10 | 盐城新宇辉丰环保科技有限公司 | Flexible landfill yard rigidity landfill treatment device |
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| CN101612626B (en) * | 2008-06-23 | 2013-01-02 | 贵阳铝镁设计研究院有限公司 | Method for processing electrolytic residue |
| CN101914918B (en) * | 2010-07-12 | 2012-06-06 | 无锡市政设计研究院有限公司 | High-steep side slope and intensely weathered bed rock solid waste landfill site seepage prevention structure and treatment method thereof |
| CN202479198U (en) * | 2012-02-27 | 2012-10-10 | 华侨大学 | Device for preventing landfill gas in landfill space of refuse from being leaked |
| EP2992974B1 (en) * | 2014-10-21 | 2018-07-18 | Fuji Corporation Co., Ltd. | Final disposal plant |
| CN105019464A (en) * | 2015-08-03 | 2015-11-04 | 中国市政工程西北设计研究院有限公司 | Refuse landfill anti-seepage layer structure achieving anchoring through top of side wall of concrete structure flood interception channel |
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