CN104196058A - Coal mining subsidence water area heavy metal treatment method - Google Patents
Coal mining subsidence water area heavy metal treatment method Download PDFInfo
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- CN104196058A CN104196058A CN201410492105.3A CN201410492105A CN104196058A CN 104196058 A CN104196058 A CN 104196058A CN 201410492105 A CN201410492105 A CN 201410492105A CN 104196058 A CN104196058 A CN 104196058A
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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
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention relates to a coal mining subsidence water area heavy metal treatment method, aiming to solve the problem that subsidence water areas away contain excess heavy metal such as copper, cadmium, lead and zinc and some of the subsidence water areas are communicated with underground mine water, which are difficult to treat. The coal mining subsidence water area heavy metal treatment method includes the steps of cultivating sub-mature field snails specially, breeding the field snails in the subsidence water areas until the field snails are mature one month later; fishing the mature field snails and smashing the same, mixing the smashed field snails with water and quick lime to form ecological concrete, feeding the ecological concrete to cracks, steps and pits of the subsidence water areas, and finally covering the cracks, the steps and the pits of the subsidence water areas with clay and tamping the clay to form water-tight layers. Therefore, the water-tight layers for the subsidence water areas can be formed within a short time, and the field snails which are cultivated specially and capable of gathering the heavy metal are closed in the water-tight layers finally so as to control the heavy metal reliably. The coal mining subsidence water area heavy metal treatment method has the advantages of being effective and thorough in treatment, can close the excess heavy metal thoroughly and improve the coal mining subsidence water areas into utilizable water areas with high-quality and stable water, and is applicable to early treatment of the coal mining subsidence water areas widely.
Description
Technical field
The present invention relates to a kind of coal mining subsidence area waters heavy metal improvement method.
Background technology
Subsided water area forms degree of depth surface collapse by coalfield pit mining and forms, and its water source is from excess surface water and underground water burst etc.Subsided water area stratum lacks the impervious layer of self-assembling formation, and crack, step, dell etc. are arranged at its bottom, with a varied topography.Mostly subsided water area is enclosed waters simultaneously, periphery industrial occupancy, living area mix, often periphery also has hillock, spoil is subject to rainwater and soaks and attack, wash away and enter subsided water area, often contains the heavy metals such as excessive copper, cadmium, lead, zinc, water heavy contamination in water, in the high area of groundwater table, subsided water area also likely communicates with underground mine water, influences each other, and is difficult to administer.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned defect that how to overcome prior art, and a kind of coal mining subsidence area waters heavy metal improvement method is provided.
For solving the problems of the technologies described above, this coal mining subsidence area waters heavy metal improvement method, comprises the steps:
(1) collect kind of a spiral shell, select color and luster light brown, shell is thin, body rounded tail is blunt, the fresh and alive spiral shell of 12 grams～16 grams of body weight is made kind of a spiral shell, female spiral shell is large and justify, and male spiral shell is little and sharp;
(2) artificial propagation river snail seedling: in the artificial pond of depth of water 40-60cm or natural water area, throw in kind of a spiral shell, every square metre of water surface is thrown in 10,3 male 7 mothers, regularly throw something and feed if desired water peanut, hornwort or other pasture and water, and throw something and feed 15 grams, wheat bran powder of every three days every square metre of waters surface.After laying eggs, collects in time on spiral shell river snail ovum;
(3) in artificial pond or natural water area, young spiral shell culturing net is set, and young spiral shell culturing net is immersed in to the following 5-8cm of the water surface, the river snail ovum of collecting is dropped in young spiral shell culturing net and hatched, the cultivation of children's spiral shell can be selected screen of screen window, the wire lath with rectangle or circular frame, also the simple and easy net that can select water-immersed bulk silk cloth to form, shape is not limit, as long as mesh size is not limit, young spiral shell cannot from net, be spilt.
Every square metre of initial stage can be thrown in 8,000 to 10,000 river snail ovum, the 3rd day a small amount of water peanut that starts to throw something and feed, hornwort or other pasture and water after hatching, along with young spiral shell is constantly grown up, to reducing gradually stocking density, reach 5～8 grams to single river snail body weight, every square metre of stocking density is below 200;
(4) after river snail is picked up, input depth of water 40-60cm, water source are dissolved in the culturing pool mixing and are raised 15d by the deionized water of 100 weight portions and the sodium chloride of 0.67～0.70 weight portion, every square metre of water surface is raised 150, regularly throw something and feed water peanut, hornwort or other pasture and water, and throw something and feed 15 grams, wheat bran powder of every three days every square metre of waters surface, obtain sub-ripe river snail, ripe Asia river snail is dropped into mine subsided water area to be raised, regularly throw something and feed if desired water peanut, hornwort or other pasture and water, while reaching 10 grams～20 grams to the single body weight of river snail, pick up with the string bag;
The culturing pool shape size here is not limit, can adopt artificial newly-built concrete basin, also can adopt the artificial pit newly digging on the ground to lay the Simple water pool that waterproof plastic forms, it doesn't matter for pond size, shape, as long as the depth of water keeps 40-60cm left and right, water source is dissolved and is mixed by the deionized water of 100 weight portions and the sodium chloride of 0.67～0.70 weight portion.
Administer large area subsided water area and should use large pond, administer large area subsided water area and can use washing basin.
(5) pack the river snail picking up into vessel, smash up spiral shell shell, drop into quicklime and a small amount of water, killed, obtain mixture one, wherein the weight ratio of river snail, water and quicklime is 1:2.5:1;
(6) mixture is mixed with the clay of 20 times of weight, obtain mixture two;
(7) mixture two is thrown to subsided water area crack, step, dell place;
(8) finally drop into again 80～100 times to the clay of quicklime weight, cover subsided water area crack, step, dell place, artificial steady and sure, clay that this step adds is mainly by particle diameter clay particle and particle diameter≤5mm clay powders between 3-8cm, and the two ratio is 1:5.
Core of the present invention is: by river snail is cultivated specially, cultivates the ripe river snail in Asia that enriching heavy metal ability is strong, and then drops into subsided water area cultivation, and about one month just can be ripe; After maturation, pick up to smash with water, quicklime and be mixed into eco-concrete, drop into subsided water area crack, step, dell place, finally cover again clay, form impervious layer after steady and sure.So design, can help subsided water area to form as early as possible impervious layer on the one hand, stops subsided water area and underground water, mine water to form cross pollution; Utilize on the other hand the river snail enriching heavy metal of special cultivation, finally, in the river snail of these enriching heavy metals sealing impervious layer, thorough and recirculated water environment completely cuts off, and realizes solid steadyization of heavy metal processed.
As optimization, it also comprises (9) step: detect cadmium, lead, arsenic, mercury content of beary metal in water body and whether reach respective country standard, if not up to standard, repeat (1)-(8), until water quality is up to standard.
Heavy metal improvement method in coal mining subsidence area of the present invention waters has instant effect, administers advantage thoroughly, unnecessary heavy metal thoroughly can be sealed, rapidly coal mining subsidence area waters is transformed into the utilized waters that water quality is good, stable, administer the early stage that is widely used in coal mining subsidence area waters.
Detailed description of the invention
Embodiment 1: Zhou Cheng, Jining, Shandong Province subsided water area forms 6 years, contains copper 0.00336mg after testing, cadmium 0.00344mg, plumbous 0.0225mg, zinc 0.0311mg in every 1000mL water.Utilize combined ecological floating bed to cultivate Chinese celery, water hyacinth or other water plants, because gained plant content of beary metal is high, cannot utilize, cannot process, water quality makes moderate progress in a short time, but becomes again very soon bad.
Application coal mining subsidence area waters heavy metal improvement method is administered:
(1) collect kind of a spiral shell, select color and luster light brown, shell is thin, body rounded tail is blunt, the fresh and alive spiral shell of 12 grams～16 grams of body weight is made kind of a spiral shell, female spiral shell is large and justify, and male spiral shell is little and sharp;
(2) artificial propagation river snail seedling: in the artificial pond of depth of water 40-60cm or natural water area, throw in kind of a spiral shell, every square metre of water surface is thrown in 10,3 male 7 mothers, regularly throw something and feed if desired water peanut, hornwort or other pasture and water, and throw something and feed 15 grams, wheat bran powder of every three days every square metre of waters surface, collects river snail ovum in time;
(3) in artificial pond or natural water area, young spiral shell culturing net is set, and young spiral shell culturing net is immersed in the following 5-8cm of the water surface, the river snail ovum of collecting is dropped in young spiral shell culturing net and hatched, every square metre of initial stage can be thrown in 8,000 to 10,000 river snail ovum, the 3rd day a small amount of water peanut that starts to throw something and feed, hornwort or other pasture and water after hatching, along with young spiral shell is constantly grown up, to reducing gradually stocking density, reach 5～8 grams to single river snail body weight, every square metre of stocking density is below 200;
(4) after river snail is picked up, input depth of water 40-60cm, water source are dissolved in the culturing pool mixing and are raised 15d by the deionized water of 100 weight portions and the sodium chloride of 0.67～0.70 weight portion, every square metre of water surface is raised 150, regularly throw something and feed water peanut, hornwort or other pasture and water, and throw something and feed 15 grams, wheat bran powder of every three days every square metre of waters surface, obtains sub-ripe river snail.
Ripe Asia river snail is dropped into coal mining subsidence area waters, Jining of Shandong Province Zhou Cheng and raise, regularly throw something and feed if desired water peanut, hornwort or other pasture and water, while reaching 10 grams～20 grams, pick up with the string bag to the single body weight of river snail, obtains river snail A.
Also for the special river snail of cultivating of inspection, fish for 5～8 gram river snails from other natural environments for simultaneously, pack net cage into and drop into coal mining subsidence area waters and raise to body weight and reach 10 grams～20 grams, pick up to obtain river snail B.
River snail A and river snail B are sampled respectively, smash, twist even, obtain respectively river snail A mixture and river snail B mixture, through inspection: contain copper 25.6mg, cadmium 2.5mg, plumbous 27.6mg, zinc 62.5mg in every kilogram of river snail A mixture; In every kilogram of river snail B mixture, contain copper 19.4mg, cadmium 1.3mg, plumbous 21.2mg, zinc 41.7mg
(5) pack the river snail picking up into vessel, smash up spiral shell shell, drop into quicklime and a small amount of water, killed, obtain mixture one, wherein the weight ratio of river snail, water and quicklime is 1:2.5:1;
(6) mixture is mixed with the clay of 20 times of weight, obtain mixture two;
(7) mixture two is thrown to subsided water area crack, step, dell place;
(8) finally drop into again 100 times to the clay of quicklime weight, cover subsided water area crack, step, dell place, artificial steady and sure, clay that this step adds is mainly by particle diameter clay particle and particle diameter≤5mm clay powders between 3-8cm, and the two ratio is 1:5.
Through the comprehensive regulation of a year, to the end of the year 2012, in the every 1000mL water of Jining of Shandong Province Zhou Cheng subsided water area, on average contain copper 0.00119mg, cadmium 0.00046mg, plumbous 0.0045mg, zinc 0.0069mg., every index all reaches national II level water quality standard, also all reaches national water quality standard for fishery.Year June in January, 2013 to 2013, monthly inspect water quality by random samples one time, water quality indices is stable.
Described in literary composition, river snail is Cipangopaludina chinensis, formal name used at school Cipangopaludina cahayensis, popular name river snail, Neptunea cumingi.
Claims (2)
1. a coal mining subsidence area waters heavy metal improvement method, comprises the steps:
(1) collect kind of a spiral shell, select color and luster light brown, shell is thin, body rounded tail is blunt, the fresh and alive spiral shell of 12 grams～16 grams of body weight is made kind of a spiral shell, female spiral shell is large and justify, and male spiral shell is little and sharp;
(2) artificial propagation river snail seedling: in the artificial pond of depth of water 40-60cm or natural water area, throw in kind of a spiral shell, every square metre of water surface is thrown in 10,3 male 7 mothers, regularly throw something and feed if desired water peanut, hornwort or other pasture and water, and throw something and feed 15 grams, wheat bran powder of every three days every square metre of waters surface, collects river snail ovum in time;
(3) in artificial pond or natural water area, young spiral shell culturing net is set, and young spiral shell culturing net is immersed in to the following 5-8cm of the water surface, the river snail ovum of collecting is dropped in young spiral shell culturing net and hatched, every square metre of initial stage can be thrown in 8,000 to 10,000 river snail ovum, the 3rd day a small amount of water peanut that starts to throw something and feed, hornwort or other pasture and water after hatching, along with young spiral shell is constantly grown up, to reducing gradually stocking density, reach 5～8 grams to single river snail body weight, every square metre of stocking density is below 200;
(4) after river snail is picked up, input depth of water 40-60cm, water source are dissolved in the culturing pool mixing and are raised 15d by the deionized water of 100 weight portions and the sodium chloride of 0.67～0.70 weight portion, every square metre of water surface is raised 150, regularly throw something and feed water peanut, hornwort or other pasture and water, and throw something and feed 15 grams, wheat bran powder of every three days every square metre of waters surface, obtain sub-ripe river snail, ripe Asia river snail is dropped into mine subsided water area to be raised, regularly throw something and feed if desired water peanut, hornwort or other pasture and water, while reaching 10 grams～20 grams to the single body weight of river snail, pick up with the string bag;
(5) pack the river snail picking up into vessel, smash up spiral shell shell, drop into quicklime and a small amount of water, killed, obtain mixture one, wherein the weight ratio of river snail, water and quicklime is 1:2.5:1;
(6) mixture is mixed with the clay of 20 times of weight, obtain mixture two;
(7) mixture two is thrown to subsided water area crack, step, dell place;
(8) finally drop into again 80～100 times to the clay of quicklime weight, cover subsided water area crack, step, dell place, artificial steady and sure, clay that this step adds is by particle diameter clay particle and particle diameter≤5mm clay powders between 3-8cm, and the two ratio is 1:5.
2. coal mining subsidence area according to claim 1 waters heavy metal improvement method, it is characterized in that: it also comprises (9) step, detect cadmium, lead, arsenic, mercury content of beary metal in water body and whether reach respective country standard, if it is not up to standard, repeat (1)-(8), until water quality is up to standard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410492105.3A CN104196058B (en) | 2014-09-24 | 2014-09-24 | Coal mining subsidence area waters heavy metal administering method |
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| CN201410492105.3A CN104196058B (en) | 2014-09-24 | 2014-09-24 | Coal mining subsidence area waters heavy metal administering method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2399341A (en) * | 2003-03-11 | 2004-09-15 | Mohsen Al-Hawary | Water treatment method |
| CN103145248A (en) * | 2011-12-07 | 2013-06-12 | 淮南矿业(集团)有限责任公司 | Method and system for preventing and treating water pollution in core-mining subsidence area |
| CN103265119A (en) * | 2013-04-12 | 2013-08-28 | 中国科学院水生生物研究所 | Method for removing copper pollution of water body by combining demersal mollusc and aquatic plant |
| CN103979684A (en) * | 2014-04-25 | 2014-08-13 | 河北农业大学 | Ecological restoration method for intertidal zone bottom sowing clam |
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2014
- 2014-09-24 CN CN201410492105.3A patent/CN104196058B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2399341A (en) * | 2003-03-11 | 2004-09-15 | Mohsen Al-Hawary | Water treatment method |
| CN103145248A (en) * | 2011-12-07 | 2013-06-12 | 淮南矿业(集团)有限责任公司 | Method and system for preventing and treating water pollution in core-mining subsidence area |
| CN103265119A (en) * | 2013-04-12 | 2013-08-28 | 中国科学院水生生物研究所 | Method for removing copper pollution of water body by combining demersal mollusc and aquatic plant |
| CN103979684A (en) * | 2014-04-25 | 2014-08-13 | 河北农业大学 | Ecological restoration method for intertidal zone bottom sowing clam |
Non-Patent Citations (1)
| Title |
|---|
| 孟顺龙等: ""底栖动物螺蛳对池塘底泥及水质的原位修复效果研究"", 《环境污染与防治》 * |
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Granted publication date: 20190104 Termination date: 20190924 |