CN102652951A - Ecological anti-seepage partition method for surface layer of acid metal mine solid waste stock dump - Google Patents
Ecological anti-seepage partition method for surface layer of acid metal mine solid waste stock dump Download PDFInfo
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- CN102652951A CN102652951A CN2012101266588A CN201210126658A CN102652951A CN 102652951 A CN102652951 A CN 102652951A CN 2012101266588 A CN2012101266588 A CN 2012101266588A CN 201210126658 A CN201210126658 A CN 201210126658A CN 102652951 A CN102652951 A CN 102652951A
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- antiseepage
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Abstract
The invention provides an ecological anti-seepage partition method for a surface layer of a stocking body, and the method comprises the following steps of: preparing a filling material; filling a gap on the surface layer: jetting the filling material into the gap on the surface layer of the stocking body, so that an ecological filling layer is formed; preparing an anti-seepage partition material; and carrying out anti-seepage partition on the surface layer: evenly jetting and absorbing the anti-seepage partition material on the surface layer of the filled stocking body, so that a flexible anti-seepage partition layer can be formed. The anti-seepage partition method for the surface layer of the acid metal mine solid waste stock dump provided by the invention can be used for ecologically filling and sealing the surface layer of the stocking body, adjusting the pH value of the substance on the surface layer of the stocking body by adding alkaline substances, building a semi-permanent flexible anti-seepage partition layer, effectively reducing the leaching function of the falling water to the solid waste toxic and harmful substance, reducing the risk of secondary pollution, and providing a good base for the follow-up environmental pollution improvement and vegetation recovery.
Description
Technical field
The invention belongs to field of environment protection, relate to nonferrous metal mine body antiseepage isolation of useless heap and acid metal recovering plant cover of mine admittedly, be specifically related to a kind of accumulation body top layer antiseepage partition method.
Background technology
Incidents such as " arsenic poison ", " blood lead ", " cadmium rice " take place frequently, and let heavy metal pollution become one of public accident of greatest concern.At present China is owing in the exploitation of heavy metal, smelting, process, cause many heavy metals to cause the serious environmental pollution like entering atmosphere, water, soil such as lead, mercury, cadmium, cobalts.The environmental pollution that causes by heavy metal or its compound; It is very harmful to environment and biology; Simultaneously, it is prone to the enrichment through food chain, has caused countries in the world scientists' great attention at present; Therefore, China's " heavy metal pollution integrated control " 12 " planning " becomes the ad hoc planning of the formal reply of first State Council.
In the processes such as non-ferrous metal exploitation, smelting; The particularly long-term stacking of solid waste accumulation bodies such as refuse dump, mine tailing storehouse, metallurgical slag has become the main source of heavy metal pollution, as disposing and administer without science; Along with rainfall and atmospheric air circulation; To cause river, soil, phreatic pollution, cause surface vegetation, hydrobiological death, environment for human survival caused the destruction that is difficult to recover.Strengthen the comprehensive regulation of solid waste accumulation bodies such as refuse dump, mine tailing storehouse, metallurgical slag; Recover the accumulation area vegetation; The reconstruction of stability ecosystem is fundamentally alleviated also and is progressively effected a radical cure mine tailing storehouse secondary pollution phenomenon, is one of important content of current China heavy metal pollution improvement.
Mostly the accumulation body top layer is rubble, float stone, loosely organized, is difficult to store soil, liquid manure, and vegetation is difficult to growth.Because the accumulation body main matter receives weathering and rainfall leaching, harmful substance very easily gets into river and underground water with precipitation, causes secondary pollution.
Summary of the invention
In order to realize this method, the object of the present invention is to provide the ecological antiseepage partition method in useless admittedly accumulation body top layer, a kind of acid metal mine.
The ecological antiseepage partition method in useless admittedly accumulation body top layer, a kind of acid metal provided by the invention mine, it comprises the steps:
(1) preparation packing material;
(2) fill in the space, top layer: packing material is ejected into space, accumulation body top layer, forms ecological packed layer;
(3) preparation antiseepage isolated material;
(4) the top layer antiseepage is isolated: the spray of antiseepage isolated material is attached to the accumulation body top layer after filling, forms ecological antiseepage separation layer.
Wherein, packing material comprises following component in percentage by weight described in the step (1): bentonite 5-10%, diatomite 5-10%, vermiculite 5-10%, acid soil improving agent 10-20%, string 5-10%, microorganism compost 5-15%, soil-solidified-agent 1-5% and soil 20-54%.Said each composition is conventional commercially available prod on the market, and wherein, acid soil improving agent is purchased in Su Kehan bioengineering Co., Ltd; String is purchased the dimension municipal works Co., Ltd of nation in Shanghai; The microorganism compost is purchased in Jiangsu Lvzhiyuan Ecological Construction Co., Ltd.; Soil-solidified-agent is purchased in the Beijing Green Qidian Science and Technology Development Co., Ltd.
Packing material adopts special-purpose dry spraying machine to be ejected into the accumulation body top layer described in the step (1), adds water at spray material port and mixes, and the solid water ratio is 7-9: 3-1, is preferably 9: 1.
Antiseepage described in the step (3) is isolated and comprised following component in percentage by weight: ecological sand 80-90%, water soluble polyurethane resin (W-OH) solution 10-20%, wherein the W-OH solution concentration is 5-20%.Wherein, ecological sand is that benevolence is created the benevolence creation attitude sand that scientific and technological group produces; Water soluble polyurethane resin is purchased in Jiangsu ATK Environmental Engineering Design & Research Institute Co., Ltd..
It is to adopt dry spraying machine to separate spraying machine operating type simultaneously with liquid medicine that the spray of antiseepage isolated material described in the step (4) attaches mode.Specifically be when spraying ecological sand with dry spraying machine, medication separated form water spraying machine sprays the W-OH aqueous solution, and in the ecological sand of spray material port, W-OH aqueous solution, rapid solidification forms the antiseepage separation layer on the packed layer top layer.Wherein, dry spraying machine is the sow grass seeds by duster dry spraying machine of the PZ-5 type that machinery plant produces of Zhengzhou City's blue mountains and green waters; Liquid medicine separates spraying machine and is commonly called as sprayer or liquid medicine machine, for Jiangsu ATK Environmental Engineering Design & Research Institute Co., Ltd. produces.
The thickness of said packed layer is 3-7cm, said antiseepage separation layer 1-2cm.
The present invention also provides the application of said method in administering the useless admittedly accumulation body in acid metal mine.
This method adopts the auxotype host material to fill useless admittedly space, top layer, builds nearly natural vegetation growing environment, for vegetation growth necessary nutrient is provided simultaneously; Comprise alkaline neutralization materials in the packing material, can effectively regulate the vegetation root system pH in soil, enlarge to fit and give birth to vegetation type; Particularly can form semi-permanent antiseepage separation layer, its infiltration coefficient is 1*10
-7-1*10
-8Cm/sec, and have tension withstand voltage properties preferably; Root system of plant can penetrate the antiseepage separation layer, does not influence the normal growth of root system of plant.
The useless admittedly accumulation body top layer antiseepage partition method in acid metal provided by the invention mine; Can carry out ecology to the accumulation body top layer and fill sealing, add alkaline matter simultaneously, regulate accumulation body entry material pH value; And built a semipermanent flexible barrier separation layer; Effectively alleviated precipitation to the eluviation of useless harmful toxic matter admittedly, reduced the risk of secondary pollution, and good basis is provided for subsequent environments pollution control and revegetation.
The specific embodiment
Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.No. 1 test block of embodiment 1 Jiangxi copper mine deslagging field restoration of the ecosystem
(1) preparation packing material; Said packing material comprises following component in percentage by weight: bentonite 5%, diatomite 5%, vermiculite 5%, acid soil improving agent 14%, string 10%, microorganism compost 5%, soil-solidified-agent 2% and soil 54%.Said packing material adopts dry spraying machine to be ejected into the accumulation body top layer, adds water at spray material port and mixes, and the solid water ratio is 7: 3;
(2) fill in the space, top layer: the pulpous state packing material is filled into the accumulation body surface, and average thickness is 3cm;
(3) preparation antiseepage isolated material: said antiseepage isolated material comprises following component in percentage by weight: ecological sand 85%, water soluble polyurethane resin (W-OH) solution 15%, and wherein the W-OH solution concentration is 5%;
(4) the top layer antiseepage is isolated: adopt dry spraying machine to separate spraying machine operating type simultaneously with liquid medicine; When spraying ecological sand with dry spraying machine; Medication separated form water spraying machine sprays the W-OH aqueous solution, and in the ecological sand of spray material port, W-OH aqueous solution, rapid solidification forms the antiseepage separation layer on the packed layer top layer.The thickness of said top layer antiseepage separation layer is 1cm.
Through implementing top layer antiseepage quarantine measures, form the flexible barrier separation layer on top layer, deslagging field, through field observation and test analysis, effectively prevent to ooze under 68% the natural precipitation, to a certain degree intercepted solid useless in harmful toxic matter move with the precipitation leaching.The solid content of pulping material is lower in this instance, and the packing material setting time is longer, and the wriggling sliding phenomenon is outstanding, and it is big that spray attaches the THICKNESS CONTROL difficulty, and materials are more.
No. 2 test blocks of embodiment 2 Jiangxi copper mine deslagging field restorations of the ecosystem
(1) preparation packing material; Said packing material comprises following component in percentage by weight: bentonite 8%, diatomite 8%, vermiculite 5%, acid soil improving agent 10%, string 10%, microorganism compost 10%, soil-solidified-agent 1% and soil 48%.Said packing material adopts dry spraying machine to be ejected into heap body surface layer, adds water at spray material port and mixes, and the solid water ratio is 8: 2;
(2) fill in the space, top layer: the pulpous state packing material is filled into the accumulation body surface, and average thickness is 5cm;
(3) preparation antiseepage isolated material: said antiseepage isolated material comprises following component in percentage by weight: ecological sand 90%, water soluble polyurethane resin (W-OH) solution 10%, and wherein the W-OH solution concentration is 8%;
(4) the top layer antiseepage is isolated: adopt the special-purpose liquid medicine of dry spraying machine and W-OH to separate spraying machine operating type simultaneously; When spraying ecological sand with dry spraying machine; Medication separated form water spraying machine sprays the W-OH aqueous solution; In the ecological sand of spray material port, W-OH aqueous solution, rapid solidification forms the antiseepage separation layer on the packed layer top layer.The thickness of said top layer antiseepage separation layer is 1.5cm.
Through implementing top layer antiseepage quarantine measures, form the flexible barrier separation layer on top layer, deslagging field, through field observation and test analysis, effectively prevent to ooze under 76% the natural precipitation, intercepted to the increasing degree solid useless middle harmful toxic matter and moved with the precipitation leaching.Solid content along with packing material in this instance improves, and the domatic wriggling sliding phenomenon of slurry alleviates to some extent.
No. 5 test blocks of embodiment 3 Jiangxi copper mine deslagging field restorations of the ecosystem
(1) preparation packing material; Said closed material comprises following component in percentage by weight: bentonite 10%, diatomite 10%, vermiculite 8%, acid soil improving agent 15%, string 10%, microorganism compost 15%, soil-solidified-agent 2% and soil 30%.Said packing material adopts dry spraying machine to be ejected into heap body surface layer, adds water at spray material port and mixes, and the solid water ratio is 9: 1;
(2) fill in the space, top layer: the pulpous state closed material is filled into the accumulation body surface, and average thickness is 7cm;
(3) preparation antiseepage isolated material: said antiseepage isolated material comprises following component in percentage by weight: ecological sand 90%, water soluble polyurethane resin (W-OH) solution 10%, and wherein the W-OH solution concentration is 15%;
(4) the top layer sealing is isolated: adopt the special-purpose liquid medicine of dry spraying machine and W-OH to separate spraying machine operating type simultaneously; When spraying ecological sand with dry spraying machine; Medication separated form water spraying machine sprays the W-OH aqueous solution; In the ecological sand of spray material port, W-OH aqueous solution, rapid solidification forms the antiseepage separation layer on the packed layer top layer.The thickness of said top layer antiseepage separation layer is 2cm.
Through implementing top layer antiseepage quarantine measures, form the flexible barrier separation layer on top layer, deslagging field, through field observation and test analysis, effectively prevent to ooze under 83% the natural precipitation, effectively intercepted solid useless in harmful toxic matter move with the precipitation leaching.The solid content ratio of paste materials is moderate in this instance, the multiple controllable thickness of spray.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. the ecological antiseepage partition method in useless admittedly accumulation body top layer, an acid metal mine, it comprises the steps:
(1) preparation packing material;
(2) fill in the space, top layer: packing material is ejected in the space, accumulation body top layer, forms ecological packed layer;
(3) preparation antiseepage isolated material;
(4) the top layer antiseepage is isolated: the antiseepage isolated material is evenly sprayed the accumulation body top layer that is attached to after filling, form ecological antiseepage separation layer.
2. the method for claim 1; It is characterized in that packing material comprises following component in percentage by weight described in the step (1): bentonite 5-10%, diatomite 5-10%, vermiculite 5-10%, acid soil improving agent 10-20%, string 5-10%, microorganism compost 5-15%, soil-solidified-agent 1-5% and soil 20-54%.
3. the method for claim 1 is characterized in that, packing material described in the step (1) adopts dry spraying machine to be ejected into the accumulation body top layer, adds water at spray material port and mixes, and the solid water ratio is 7-9: 3-1.
4. method as claimed in claim 3 is characterized in that, packing material described in the step (1) adopts dry spraying machine to be ejected into the accumulation body top layer, adds water at spray material port and mixes, and the solid water ratio is 9: 1.
5. like any described method of claim 1-4, it is characterized in that the thickness of said packed layer is 3-7cm.
6. the method for claim 1; It is characterized in that; The antiseepage isolated material comprises following component in percentage by weight described in the step (3): ecological sand 80-90%, water soluble polyurethane resin solution 10-20%, wherein the water soluble polyurethane resin solution concentration is 5-20%.
7. the method for claim 1, the phase is characterised in that, it is to adopt dry spraying machine to separate spraying machine while operating type with liquid medicine that the spray of antiseepage isolated material described in the step (4) attaches mode.
8. method as claimed in claim 7; Phase is characterised in that; It is when spraying ecological sand with dry spraying machine that the spray of antiseepage isolated material described in the step (4) attaches mode; Medication separated form water spraying machine sprays the W-OH aqueous solution, and in the ecological sand of spray material port, W-OH aqueous solution, rapid solidification forms the antiseepage separation layer on the packed layer top layer.
9. like any described method of claim 6-8, it is characterized in that said antiseepage separation layer thickness is 1-2cm.
10. the application of any described method of claim 1-9 in administering the useless admittedly accumulation body in acid metal mine.
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| CN201210126658.8A CN102652951B (en) | 2012-04-26 | 2012-04-26 | Ecological anti-seepage partition method for surface layer of acid metal mine solid waste stock dump |
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| CN103299740A (en) * | 2013-05-14 | 2013-09-18 | 深圳市如茵生态环境建设有限公司 | Treatment method for recovering mine wasteland vegetation |
| CN103299799A (en) * | 2013-05-14 | 2013-09-18 | 章梦涛 | Treatment method for recovering mine polluted land vegetation |
| CN105935022A (en) * | 2016-05-31 | 2016-09-14 | 山东胜伟园林科技有限公司 | Anti-seepage sand containing diatomite and method of planting cotton in saline-alkali land by utilization of anti-seepage sand |
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| CN105935022A (en) * | 2016-05-31 | 2016-09-14 | 山东胜伟园林科技有限公司 | Anti-seepage sand containing diatomite and method of planting cotton in saline-alkali land by utilization of anti-seepage sand |
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| CN102652951B (en) | 2014-03-19 |
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Effective date of registration: 20180402 Address after: No. 58-9, embroidery Creek Road, Wuxi City, Jiangsu, Jiangsu Patentee after: Jiangsu lvzhiyuan Ecological Construction Co. Ltd. Address before: 100190 C, century trade building, No. 66, Zhongguancun East Road, Beijing, Haidian District, 2004 Patentee before: Beijing Beilinlvyuan Ecology Technology Research Institute Co., Ltd. |
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Address after: 214125 West 12 floor, K-Park business center, 50 embroidery Road, Binhu District, Wuxi, Jiangsu, China, 1 Patentee after: Jiangsu lvzhiyuan Ecological Construction Co. Ltd. Address before: 214125 No. 58-9 embroidery Road, Binhu District, Wuxi, Jiangsu Patentee before: Jiangsu lvzhiyuan Ecological Construction Co. Ltd. |