CN105363759A - Rigid landfill disposal device and landfill method of flexible landfill - Google Patents
Rigid landfill disposal device and landfill method of flexible landfill Download PDFInfo
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- CN105363759A CN105363759A CN201510790257.6A CN201510790257A CN105363759A CN 105363759 A CN105363759 A CN 105363759A CN 201510790257 A CN201510790257 A CN 201510790257A CN 105363759 A CN105363759 A CN 105363759A
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- landfill
- rigid
- rigidity
- air guide
- wireway
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Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 150000003839 salts Chemical class 0.000 claims abstract description 36
- 239000003818 cinder Substances 0.000 claims abstract description 33
- 239000004567 concrete Substances 0.000 claims abstract description 32
- 239000002699 waste material Substances 0.000 claims abstract description 25
- 239000004568 cement Substances 0.000 claims abstract description 12
- 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
- 239000002893 slag Substances 0.000 claims description 36
- 230000006641 stabilisation Effects 0.000 claims description 14
- 238000011105 stabilization Methods 0.000 claims description 14
- 238000007711 solidification Methods 0.000 claims description 10
- 230000008023 solidification Effects 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004746 geotextile Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 239000002245 particle 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
- 239000003381 stabilizer Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract 4
- 239000002689 soil Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 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
- 239000000758 substrate Substances 0.000 description 2
- 210000004243 sweat Anatomy 0.000 description 2
- 239000011398 Portland cement Substances 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
- 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
- 238000010276 construction Methods 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
- 235000013312 flour Nutrition 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 229920006262 high density polyethylene film Polymers 0.000 description 1
- 229940098458 powder spray Drugs 0.000 description 1
- 238000004062 sedimentation Methods 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
- 239000002351 wastewater Substances 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 rigid landfill disposal device and landfill method of a flexible landfill. Multiple waste pits are distributed on the landfill; multiple rigid cinder concrete boxes are sequentially arranged in the vertical direction of the waste pits and internally provided with multiple rigid spaces evenly arranged; the rigid spaces are formed by pouring cinder and cement with rebars into the rigid cinder concrete boxes; the inner walls of the rigid spaces are coated with anti-corrosion and anti-seepage paint or internally provided with plastic containers; the space between the adjacent rigid spaces is filled with cinder concrete and rebars in a pouring mode; sealing covers are arranged on the tops of the rigid spaces; the sealing covers on the top serve as the bottoms of the rigid cinder concrete boxes above the sealing covers; each rigid space is internally provided with fine cinder, waste salt, cinder, a waterproof film and the corresponding sealing cover in sequence from bottom to top. According to the rigid landfill disposal device for the flexible landfill, the landfill area is divided into the multiple independent rigid spaces, no large-scale pollution is generated even if the landfill area is locally leaked, and safety is high.
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 has great Feng, Xiangshui County and Deng Ji great chemical industrial park, strand, relate to the big-and-middle-sized chemical enterprises such as medicine, agricultural chemicals, daily-use chemical industry, waste water control, each large enterprises can produce semisolid or the solid-state hazardous wastes such as a large amount of abraum salts in chemical process, have greater environmental impacts; And direct landfill after the ease of solubility danger useless employing cement solidification maintenances such as existing abraum salt, concerning flexible landfill yard, abraum salt dissolubility is strong, and the possibility of seepage is comparatively large, there is greatly risk, and the environment for area exists very large potential safety hazard.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides the useless landfill stabilization device of ease of solubility danger and the burying methods such as a kind of abraum salt, by removing landfill to be divided into several independently rigid space, decreasing and polluting expansion, adding security.
Technical scheme: for solving the problems of the technologies described above, one of the present invention flexible landfill yard rigidity landfill stabilization device, several waste pits have been dug at landfill yard, waste pit vertical direction is provided with several rigidity cinder concrete coffins successively, several evenly distributed rigid space are provided with in described rigidity cinder concrete coffin, rigid space is aided with reinforcing bar by slag and cement and builds in rigidity cinder concrete coffin and formed, the inwall of described rigid space scribbles anti-corrosion leak-proof paint or built-in plastic containers, fill between adjacent rigid space and build cinder concrete and be aided with reinforcing bar, the top of rigid space is provided with seal cover, the seal cover at top is as bottom the rigidity cinder concrete coffin of top, fine slag, abraum salt, slag, rainproof film and seal cover is provided with from the bottom up successively in rigid space.
As preferably, keep at a certain distance away in described waste pit and be provided with air guide french drain, air guide french drain is equipped with wireway.
As preferably, in described air guide french drain, be provided with the geotextiles preventing particulate from entering wireway.
Start to arrange one deck air guide french drain after described waste pit landfill 80 ~ 100cm height, every landfill 60 ~ 70cmcm highly arranges one deck air guide french drain, air guide french drain is equipped with wireway, the graded broken stone of Φ 50-120 particle diameter is filled with between air guide french drain and wireway, wireway surface axially offers through hole, wireway stretches out buring layer at buring layer highest point, is discharged by issuable gas.
A burying method for above-mentioned flexible landfill yard rigidity landfill stabilization device, comprises the following steps:
(1) go to dig multiple waste pit at landfill, in waste pit, utilize slag and cement to be aided with reinforcing bar build multiple rigidity cinder concrete coffin, at inwall brushing anti-corrosion leak-proof paint or the built-in plastic containers of rigidity cinder concrete coffin;
(2) hardness is comparatively large and in large block abraum salt crusher in crushing, all abraum salt doping flying dust, cement, water and stabilizing agent mix and blend solidifications, blanking is in curing mold, and maintenance 2 ~ 3 days, delivers to abraum salt district after qualified again;
(3) first lay one deck fine slag at the rigid space bottom, then the abraum salt after solidification is put on fine slag, in abraum salt, lay air guide french drain, air guide french drain is communicated with air by wireway, abraum salt is laid one deck slag, then adds a cover rainproof film, cover seal cover;
(4) then seal cover as the bottom of last layer rigidity cinder concrete coffin, seal cover is laid one deck fine slag, then the abraum salt after solidification is put on fine slag, air guide french drain is laid in abraum salt, air guide french drain is communicated with air by wireway, abraum salt is laid one deck slag, then adds a cover rainproof film, cover another seal cover;
(5) step (4) is repeated, until landfill completes.
In the present invention, at landfill to certain altitude, such as during 80-100cm, the air guide french drain of DN300 is set at interval of 60m in reservoir area, the HDPE wireway of DN150 is laid in french drain, air guide french drain liner 200g geotextiles enters air guide french drain to prevent particulate and gradually enters wireway, the graded broken stone of Φ 50-120 particle diameter is filled with between air guide french drain and wireway, wireway surface axial aperture spacing 100mm, wireway adopts sweat soldering, stretch out buring layer at buring layer highest point, issuable gas is discharged.Landfill tip height often increases 80-100cm, re-lays the horizontal air guiding layer of one deck.Have a small amount of biological sludge in landfill yard landfill material, generation narrow-minded, the gas of collection together with the foul gas of leachate equalization basin after the absorption of alkali lye spray+activated-carbon device, then by the high aiutage of 15m discharged to air.
In the actual landfill operation of the present invention, settlement issues is most important, and sedimentation value is crossed conference and caused the tearing of seepage control system to break, and destroys the safety and stability of landfill yard, for surrounding enviroment bring pollution.This department landfill yard characteristic value of foundation bearing capacity requires to reach 120KN/m
2, design adopts φ 500 powder-spray pile to carry out foundation stabilization.At the bottom of landfill district foundation ditch, absolute altitude is-8.0 meters, and ground just in time drops on 4 layers of silt, and composite foundation enters 5. layer flour sand is no less than 1.0m, and actual carrying capacity should at 150KN/m2, namely 15 tons/square, and substrate largest settlement in reservoir area is 1.086m.It is domatic that HDPE film maximum tension rate occurs in waste burying, is 1.4%, is less than the maximum elongation at yield rate 3% of HDPE geomembrane, can not destroys seepage control system, meets the requirement of " hazard waste landfill Environmental capacity standard ", be deposited in seepage control system allowed band.
Landfill yard vertical seepage control adopts three axes agitating pile construction, adopt cover manual labour skill, material by 25% 42.5 portland cements, 30% multiple spraying cement, 0.05% triethanolamine, 0.2% calcium lignosulfonate is mixed, mixing pile intensity qu28d >=1.0MPa, infiltration coefficient at 1-5 × 10-6cm/s, pile tube total length 23m, underground mixing pile stake end enters 2 layers of less very soft sill clay layer of infiltration coefficient, enters 6. 2 layers of about 3.1m.Refuse deadweight to the pressure of side slope in vertical seepage control system tolerance range.Build data according to landfill yard, I takes charge of landfill yard and belongs to Class C building, and substrate is arranged in the 5th layer of soil, and Soft Soil Layer shear wave velocity value is all greater than 90m/s, therefore can not consider that sand liquefaction and weak soil shake fall into the impact on landfill yard.
Beneficial effect: flexible landfill yard rigidity landfill stabilization device of the present invention, by landfill being distinguished into multiple independently rigid space, reveal even if landfill goes that local occurs, also can not become large-scale pollution, security is high; And rigid space is all built with cinder concrete, rigid space inside is provided with anti-corrosion leak-proof paint, is equipped with slag in the bottom of rigid space and top, and top is also provided with rainproof film, single rigid space good airproof performance, the generation of decreasing pollution.
Accompanying drawing explanation
Fig. 1 is the structural representation of rigid space in the present invention;
Fig. 2 is the schematic cross-section of rigidity cinder concrete coffin of the present invention;
Fig. 3 is the distribution schematic diagram of air guide french drain and wireway;
Fig. 4 is the distribution schematic diagram of one deck air guide french drain.
Detailed description of the invention
As shown in Figures 1 to 4, one of the present invention flexible landfill yard rigidity landfill stabilization device, four waste pits are set up separately at landfill yard, waste pit is of a size of 25m*25m*8m, each waste pit vertical direction is provided with 5 rigidity cinder concrete coffins 1 successively, rigidity cinder concrete coffin 1 is of a size of 25m*25m*1.5m, several evenly distributed rigid space 6 are provided with in rigidity cinder concrete coffin 1, rigid space 6 for diameter be 1.2m, the cylindrical space of high 1.5m, rigid space 6 is aided with reinforcing bar by slag 63 and cement and builds in rigidity cinder concrete coffin 1 and formed, the inwall of described rigid space 6 scribbles anti-corrosion leak-proof paint or built-in plastic containers, adjacent rigid space 6 is spaced apart 0.2m, fill between adjacent rigid space 6 and build slag 63 concrete and be aided with reinforcing bar, ensure that gap is filled up, fill near side slope region slag 63 gravel-concrete solidified waste, the top of rigid space 6 is provided with seal cover 65, the seal cover 65 at top is as bottom the rigidity cinder concrete coffin 1 of top, in rigid space 6, be provided with fine slag 61, abraum salt, slag 63, rainproof film 64 and seal cover 65 from the bottom up successively, slag 63 can be that fine slag 61 or thick slag are all passable.
In the present invention, keep at a certain distance away in described waste pit and be provided with one deck air guide french drain 4, one deck air guide french drain 4 is distributed in rigid space 6, as shown in Figure 4, air guide french drain 4 is equipped with wireway 3, the graded broken stone of Φ 50-120 particle diameter is filled with between air guide french drain and wireway, wireway 3 surface axially offers through hole 5, wireway 3 adopts sweat soldering, buring layer is stretched out at buring layer highest point, issuable gas is discharged, in described air guide french drain 4, is provided with the geotextiles preventing particulate from entering wireway 3.Start to arrange air guide french drain 4 after waste pit landfill 80 ~ 100cm height, every landfill 60cm highly arranges air guide french drain 4.
A burying method for above-mentioned flexible landfill yard rigidity landfill stabilization device, comprises the following steps:
(1) go to dig four waste pits at landfill, in waste pit, utilize slag 63 and cement to be aided with reinforcing bar build multiple rigidity cinder concrete coffin 1, at inwall brushing anti-corrosion leak-proof paint or the built-in plastic containers of rigidity cinder concrete coffin 1;
(2) hardness is comparatively large and in large block abraum salt crusher in crushing, all abraum salt doping flying dust, cement, water and stabilizing agent mix and blend solidifications, blanking is in curing mold, and maintenance 2 ~ 3 days, delivers to abraum salt district after qualified again;
(3) fine slag 61 of one deck 25cm is first laid at rigid space 6 bottom, form cushion, protection firming body, discharges in order by firming body, then puts on fine slag 61 by the abraum salt after solidification, air guide french drain 4 is laid in abraum salt, air guide french drain 4 is communicated with air by wireway 3, and abraum salt is laid one deck slag 63, and thickness is 25cm, then add a cover rainproof film 64, cover seal cover 65;
(4) then seal cover 65 as the bottom of last layer rigidity cinder concrete coffin 1, seal cover 65 is laid one deck 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 communicated with air by wireway 3, abraum salt is laid one deck slag 63, then adds a cover rainproof film 64, cover another seal cover 65;
(5) step (4) is repeated, until landfill completes.
In the present invention, not only can process abraum salt, also can process ease of solubility danger useless simultaneously, play good treatment effect.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a flexible landfill yard rigidity landfill stabilization device, it is characterized in that: set up several waste pits separately at landfill yard, waste pit vertical direction is provided with several rigidity cinder concrete coffins successively, several evenly distributed rigid space are provided with in described rigidity cinder concrete coffin, described rigid space is aided with reinforcing bar by slag and cement and builds in rigidity cinder concrete coffin and formed, the inwall of described rigid space scribbles anti-corrosion leak-proof paint or built-in plastic containers, fill between adjacent rigid space and build cinder concrete and be aided with reinforcing bar, the top of rigid space is provided with seal cover, the seal cover at top is as bottom the rigidity cinder concrete coffin of top, fine slag, abraum salt, slag, rainproof film and seal cover is provided with from the bottom up successively in rigid space.
2. flexible landfill yard rigidity landfill stabilization device according to claim 1, is characterized in that: keeping at a certain distance away in described waste pit is provided with air guide french drain, and air guide french drain is equipped with wireway.
3. flexible landfill yard rigidity landfill stabilization device according to claim 2, is characterized in that: be provided with the geotextiles preventing particulate from entering wireway in described air guide french drain.
4. flexible landfill yard rigidity landfill stabilization device according to claim 3, it is characterized in that: start to arrange one deck air guide french drain after described waste pit landfill 80 ~ 100cm height, every landfill 60 ~ 70cmcm highly arranges one deck air guide french drain, air guide french drain is equipped with wireway, the graded broken stone of diameter 50-120 particle diameter is filled with between air guide french drain and wireway, wireway surface axially offers through hole, and wireway stretches out buring layer at buring layer highest point, is discharged by issuable gas.
5. use the burying method wanting the flexible landfill yard rigidity landfill stabilization device described in 4 according to right, it is characterized in that: comprise the following steps:
(1) go to dig multiple waste pit at landfill, in waste pit, utilize slag and cement to be aided with reinforcing bar build multiple rigidity cinder concrete coffin, at inwall brushing anti-corrosion leak-proof paint or the built-in plastic containers of rigidity cinder concrete coffin;
(2) hardness is comparatively large and in large block abraum salt crusher in crushing, all abraum salt doping flying dust, cement, water and stabilizing agent mix and blend solidifications, blanking is in curing mold, and maintenance 2 ~ 3 days, delivers to abraum salt district after qualified again;
(3) one deck fine slag is first laid at the rigid space bottom, then the abraum salt after solidification is put on fine slag, air guide is laid blind in abraum salt, air guide is blind to be communicated with landfill yard exhaust-gas treatment facilities by wireway, abraum salt is laid one deck slag, then add a cover rainproof film, cover seal cover;
(4) then seal cover as the bottom of last layer rigidity cinder concrete coffin, seal cover is laid one deck fine slag, then the abraum salt after solidification is put on fine slag, air guide french drain is laid in abraum salt, air guide french drain is communicated with air by wireway, abraum salt is laid one deck slag, then adds a cover rainproof film, cover another seal cover;
(5) step (4) is repeated, until landfill completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510790257.6A CN105363759B (en) | 2015-11-17 | 2015-11-17 | Flexible landfill yard rigidity landfill stabilization device and burying method |
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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 true CN105363759A (en) | 2016-03-02 |
| CN105363759B CN105363759B (en) | 2017-12-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108526189A (en) * | 2018-05-14 | 2018-09-14 | 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 |
| CN111408598A (en) * | 2019-01-07 | 2020-07-14 | 光大绿色环保管理（深圳）有限公司 | Semi-automatic landfill operation equipment and method for rigid landfill |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN111408598A (en) * | 2019-01-07 | 2020-07-14 | 光大绿色环保管理（深圳）有限公司 | Semi-automatic landfill operation equipment and method for rigid landfill |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105363759B (en) | 2017-12-26 |
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