CN103537481A - Preparation method of curing isolation impervious body for organic pollutants - Google Patents

Preparation method of curing isolation impervious body for organic pollutants Download PDF

Info

Publication number
CN103537481A
CN103537481A CN201310524123.0A CN201310524123A CN103537481A CN 103537481 A CN103537481 A CN 103537481A CN 201310524123 A CN201310524123 A CN 201310524123A CN 103537481 A CN103537481 A CN 103537481A
Authority
CN
China
Prior art keywords
curing
preparation
antiseepage body
isolation
isolation antiseepage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310524123.0A
Other languages
Chinese (zh)
Other versions
CN103537481B (en
Inventor
李海建
胡波
冯双剑
李玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanda Environmental Restoration Co., Ltd.
Original Assignee
JIANGSU SUNTIME ENVIRONMENTAL REMEDIATION CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU SUNTIME ENVIRONMENTAL REMEDIATION CO Ltd filed Critical JIANGSU SUNTIME ENVIRONMENTAL REMEDIATION CO Ltd
Priority to CN201310524123.0A priority Critical patent/CN103537481B/en
Publication of CN103537481A publication Critical patent/CN103537481A/en
Application granted granted Critical
Publication of CN103537481B publication Critical patent/CN103537481B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Processing Of Solid Wastes (AREA)

Abstract

The invention relates to the field of soil remediation and particularly relates to a preparation method of a curing isolation impervious body for organic pollutants. The preparation method comprises the following steps: (1) adding ferrous sulfate into contaminated soil containing organic matters, uniformly mixing, adding hydrogen peroxide, uniformly mixing, curing for a period of time, adding potassium permanganate, reduced iron powder, cement, bentonite, activated carbon and the like, and uniformly mixing to obtain soil for the curing isolation impervious body; (2) adding an appropriate amount of water into the obtained soil for the curing isolation impervious body, then backfilling into a contaminated area, and compacting and curing for 5-7 days to form the curing isolation impervious body of 30-50cm. The preparation method adopting the technical scheme provided by the invention has the following beneficial effects: (1) the treatment process of the organic matters is simple; (2) the remediation cost is low, and the environmental load is reduced; (3) the leaching concentration of the organic matters in the contaminated soil can be fast and efficiently reduced; (4) the migration of the organic matters can be effectively prevented.

Description

A kind of preparation method of the curing isolation antiseepage body for organic pollution
Technical field
The present invention relates to soil remediation field, particularly a kind of preparation method of the curing isolation antiseepage body for organic pollution.
Background technology
Fast development along with Chinese Urbanization, the demand of town site is increasing, many construction lands be all originally city chemical industry industrial land, warehousing land used, house refuse aheap or other special use area, as dangerous material are produced, storing, process and dispose etc.Because these places were all once stacked or were processed poisonous dangerous goods, so the soil of these construction lands being subject to is more or less a kind of, in the time of more, it is the pollution of multiple pollutant, some pollutant or even the dangerous substance harmful especially to human body, for example the PCBs of China disposes place, safety prevention measure is improper by poor management, and leakage has been caused in some place.The environmental pollution accident causing due to these problems and the health incident of injury is happened occasionally, has become the main cause that causes dispute in Land Development.
Solidifying isolation antiseepage body is by contaminated soil and medicament hybrid reaction, by multiple effects such as chemical reaction, physical absorption, chemisorbed, micro-form sealings, prevents that pollutant from moving, and reduces toxicity, biological effectiveness and the ecological risk of pollutant.
Summary of the invention
The object of the invention is: a kind of curing isolation antiseepage body for organic pollution is provided, utilize the combined-repair method that chemistry is repaired and physics reparation combines to repair the organic matter in contaminated soil, to reach, reduce it to human health and the ecological re-set target that causes risk; Meanwhile, utilize curing isolation antiseepage body to prevent organic migration.
For achieving the above object, the technical solution used in the present invention is as follows:
A preparation method for the curing isolation antiseepage body of organic pollution, described preparation method comprises the following steps:
(1), after adding ferrous sulfate to mix in containing organic Polluted Soil, the consumption of ferrous sulfate is 3~5 times of organic matter total mole number in Polluted Soil; Add hydrogen peroxide to mix and maintenance a period of time, hydrogen peroxide consumption is 2~3 times of ferrous sulfate molal quantity, after adding potassium permanganate, reduced iron powder, cement, bentonite, active carbon etc. to mix, obtain solidifying isolation antiseepage body with native, wherein, potassium permanganate consumption is 0.5~1.5 times of ferrous sulfate molal quantity; Reduced iron powder consumption is 0.5~2 times of ferrous sulfate molal quantity; Cement, bentonite, activated carbon dosage are respectively 0.05~0.10 times, 0.01~0.08 times, 0.01~0.05 times of Polluted Soil quality;
(2) be backfilled to Polluted area after the curing isolation antiseepage body obtaining is added to suitable quantity of water with soil, and compacting maintenance 5~7 days, form the curing isolation antiseepage body of 30~50cm.
Further, the mass fraction of described hydrogen peroxide is 27.5%.
Further, the maintenance a period of time in described step (1) is 24~78h.
Further, the maintenance a period of time in described step (1) is 36h.
Further, the water in described step (2) is running water, and the consumption of described running water is 20~30% to adjust according to solidifying isolation antiseepage body by native water content.
Further, the water in described step (2) is running water, and the consumption of described running water is 25% to adjust according to solidifying isolation antiseepage body by native water content.
Further, described organic pollution is chloro thing.
Fenton (Fenton) reagent that this product adopts is mainly comprised of ferrous sulfate and hydrogen peroxide, and it has stronger oxidative degradation to organic pollution.Hydrogen peroxide in Fenton reagent is become hydroxyl radical free radical by ferrous ion catalytic decomposition, and hydroxyl radical free radical is a kind of active oxygen, has extremely strong oxidability, and it has given the strong oxidation characteristic of Fenton reagent just.Its generation and oxidation reaction mechanism are as follows:
Fe 2++H 2O 2→Fe 3++OH -+·OH
Fe 2++·OH→Fe 3++OH -
RH+·OH→R·+H 2O
R·+Fe 3+→R ++Fe 2+
R·+O 2→ROO+→···→CO 2+H 2O
The major advantage of Fenton technology is: (1) reaction starts fast, and reaction condition is gentle, just can move at normal temperatures and pressures; (2) equipment is simple, and energy consumption is little, saves operating cost; (3) Fenton reagent oxidability is strong, can organic pollution is innoxious in course of reaction, and product is carbon dioxide and water.
Organic Pollution soil is after the oxidation of Fenton reagent, and the organic pollution containing is progressively degraded to carbon dioxide and water, has reduced and reduced organic matter to the harm of human body and the pollution to environment.
The ferrous sulfate adopting in the present invention is ferrous sulfate heptahydrate, because ferrous sulfate heptahydrate source is wide, raw material is simple and easy to get, and cost is low.
The Zero-valent Iron adopting in this product has extremely strong reproducibility, can be reduced to biodegradable or be easy to biodegradable simple organic being difficult to biodegradable or not biodegradable organic chloride.Its operation principle is as follows:
Fe 0+H 2O+RCl→RH+Fe 2++OH -+Cl -
Fe 0+2H 2O+2RCl→2ROH+Fe 2++H 2+2Cl -
In the process of reduction dechlorination, the free chloride ion of generation etc. has to the ironing surface passivating film of simple substance the destruction of penetrating.This just makes the iron filings can be because surface forms passivating film cessation reaction, and then increases the utilization rate of iron filings, guarantees its chronicity to the removal effect of organic pollution.
And active carbon itself is a kind of very strong Adsorption of Organic agent, macromolecular arene organic matter is had to higher adsorption rate; Bentonite has stronger hygroscopicity and dilatancy, there is stronger cation exchange capacity (CEC), various gas, liquid, organic substance are had to certain adsorption capacity, maximal absorptive capacity can reach 5 times to the weight of self, active carbon and bentonitic existence can not only effectively prevent that volatile organic contaminant and half volatile organic contaminant are by scratching isolation antiseepage body by suction-operated, and add and further extended pollutant after cement and solidified oxidant that isolation antiseepage body contains and the time of contact of reducing agent, and then increased the probability that they are degraded.
Adopt the beneficial effect of technical scheme of the present invention to be:
(1) to administer technique simple for organic matter, and in conjunction with prior art, take ferrous sulfate, hydrogen peroxide, potassium permanganate, reduced iron powder, cement, bentonite, active carbon etc. is raw material, prepares the curing isolation antiseepage body for organic pollution;
(2) by this for the organic isolation antiseepage of contaminated soil, rehabilitation cost is low, alleviates carrying capacity of environment;
(3) can reduce fast and efficiently the organic leaching concentration in contaminated soil;
(4) can effectively stop organic migration in contaminated soil, prevent its harm to the mankind and other biological.
Accompanying drawing explanation
Fig. 1 is the migration schematic diagram of untreated front organic pollution.
Fig. 2 is for being used the migration schematic diagram of organic curing isolation antiseepage body after stain thing.
The specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Using method: in Polluted area, determine after absolute altitude line, at basis end absolute altitude, excavate 30~50cm downwards, the Polluted Soil digging out is for the preparation of solidifying isolation antiseepage body with native, by solidifying after isolation antiseepage body adds suitable quantity of water with soil, be backfilled to Polluted area, and compacting maintenance within 5~7 days, (characteristic value of foundation bearing capacity, the basic maximum pressure that building lot allows is f ak=290kPa, backfill compaction coefficient>=0.95), form the organic curing isolation antiseepage body of 30~50cm.It uses effect to represent by Fig. 1 and Fig. 2.
Embodiment 1
A preparation method for the curing isolation antiseepage body of organic pollution, comprises the following steps:
(1) by after containing and adding ferrous sulfate heptahydrate 83.4g to mix in the Polluted Soil 1000g that chloro thing total mole number is 100mmol, add 27.5% hydrogen peroxide 74.2g to mix also maintenance after 24 hours, hydrogen peroxide is become hydroxyl radical free radical by ferrous ion catalytic decomposition, hydroxyl radical free radical is a kind of active oxygen, there is extremely strong oxidability, Organic Pollution soil is after the oxidation of Fenton reagent, the organic pollution containing is progressively degraded to carbon dioxide and water, has reduced and reduced organic matter to the harm of human body and the pollution to environment.After adding potassium permanganate 23.7g, reduced iron powder 8.4g, cement 50g, bentonite 10g, active carbon 10g etc. to mix, obtain solidifying isolation antiseepage body with native.
The Zero-valent Iron adopting in the present invention has extremely strong reproducibility, can be reduced to biodegradable or be easy to biodegradable simple organic being difficult to biodegradable or not biodegradable organic chloride.
In the present invention, active carbon and bentonitic existence can not only effectively prevent that volatile organic contaminant and half volatile organic contaminant are by scratching isolation antiseepage body by suction-operated, and extended pollutant and solidified oxidant that isolation antiseepage body contains and the time of contact of reducing agent, and then increased the probability that they are degraded.
(2) by the curing isolation antiseepage body obtaining with soil add appropriate running water keep solidifying isolation antiseepage body with after native moisture content 20%, will solidify isolate antiseepage body with earthen backfill to Polluted area, and compacting maintenance 6 days, the curing isolation antiseepage body of formation 30cm.
Embodiment 2
A preparation method for the curing isolation antiseepage body of organic pollution, comprises the following steps:
(1) by after adding reduced iron powder 20g, ferrous sulfate heptahydrate 100g to mix in the Polluted Soil 1000g that contains chloro thing 100mmol, add 27.5% hydrogen peroxide 111.3g to mix and maintenance after 36 hours, obtain solidifying isolation antiseepage soil for body after adding potassium permanganate 56.9g, cement 75g, bentonite 45g, active carbon 30g etc. to mix;
(2) by the curing isolation antiseepage body obtaining with soil add appropriate running water keep solidifying isolation antiseepage body with after native moisture content 25%, will solidify isolate antiseepage body with earthen backfill to Polluted area, and compacting maintenance 5 days, the curing isolation antiseepage body of formation 40cm.
Embodiment 3
A preparation method for the curing isolation antiseepage body of organic pollution, comprises the following steps:
(1) by after adding reduced iron powder 56g, ferrous sulfate heptahydrate 139g to mix in the Polluted Soil 1000g that contains chloro thing 100mmol, add 27.5% hydrogen peroxide 185.5g to mix and maintenance after 78 hours, obtain solidifying isolation antiseepage soil for body after adding potassium permanganate 118.5g, cement 100g, bentonite 80g, active carbon 50g etc. to mix;
(2) by the curing isolation antiseepage body obtaining with soil add appropriate running water keep solidifying isolation antiseepage body with after native moisture content 30%, will solidify isolate antiseepage body with earthen backfill to Polluted area, and compacting maintenance 7 days, the curing isolation antiseepage body of formation 50cm.
By Practical Project, use knownly, this organic curing isolation antiseepage body can effectively prevent the upwards migration of various organic pollutants in its below Polluted Soil, thereby prevents that it from working the mischief to the mankind and other biological.
This solidifies isolation antiseepage organic migration in contaminated soil for body, organic pollution is had to good isolation anti-seepage effect, especially to chlorinated organics best results.Solidify the Leaching of isolation antiseepage body lower than 50% of each pollutant limit value in < < hazardous waste judging standard leaching characteristic identification > > (GB5085.3-2007); By measuring, solidify the isolation antiseepage body region top atmospheric sample of getting, lower than standard limit, (pentachlorophenol, dichloroethanes, BHC, dichloro-benzenes, trichloro-benzenes, dichloropropane, trichloropropane, hexachloro-benzene standard limited value are respectively 0.005mg/m to organic contamination substrate concentration 3, 3.0mg/m 3, 0.008mg/m 3, 0.1mg/m 3, 0.07mg/m 3, 0.07mg/m 3, 0.03mg/m 3, 0.03mg/m 3).
Although above-described embodiment describes in detail technical scheme of the present invention, but technical scheme of the present invention is not limited to above embodiment, in the situation that not departing from thought of the present invention and aim, any change that technical scheme of the present invention is done all will fall into claims limited range of the present invention.

Claims (7)

1. for a preparation method for the curing isolation antiseepage body of organic pollution, it is characterized in that, described preparation method comprises the following steps:
(1), after adding ferrous sulfate to mix in containing organic Polluted Soil, the consumption of ferrous sulfate is 3~5 times of organic matter total mole number in Polluted Soil; Add hydrogen peroxide to mix and maintenance a period of time, hydrogen peroxide consumption is 2~3 times of ferrous sulfate molal quantity, after adding potassium permanganate, reduced iron powder, cement, bentonite, active carbon etc. to mix, obtain solidifying isolation antiseepage body with native, wherein, potassium permanganate consumption is 0.5~1.5 times of ferrous sulfate molal quantity; Reduced iron powder consumption is 0.5~2 times of ferrous sulfate molal quantity; Cement, bentonite, activated carbon dosage are respectively 0.05~0.10 times, 0.01~0.08 times, 0.01~0.05 times of Polluted Soil quality;
(2) be backfilled to Polluted area after the curing isolation antiseepage body obtaining is added to suitable quantity of water with soil, and compacting maintenance 5~7 days, form the curing isolation antiseepage body of 30~50cm.
2. the preparation method of a kind of curing isolation antiseepage body for organic pollution according to claim 1, is characterized in that: the mass fraction of described hydrogen peroxide is 27.5%.
3. the preparation method of a kind of curing isolation antiseepage body for organic pollution according to claim 1, is characterized in that: the maintenance a period of time in described step (1) is 24~78h.
4. the preparation method of a kind of curing isolation antiseepage body for organic pollution according to claim 4, is characterized in that: the maintenance a period of time in described step (1) is 36h.
5. the preparation method of a kind of curing isolation antiseepage body for organic pollution according to claim 1, it is characterized in that: the water in described step (2) is running water, the consumption of described running water is 20~30% to adjust according to solidifying isolation antiseepage body by native water content.
6. the preparation method of a kind of curing isolation antiseepage body for organic pollution according to claim 5, it is characterized in that: the water in described step (2) is running water, the consumption of described running water is 25% to adjust according to solidifying isolation antiseepage body by native water content.
7. according to the preparation method of a kind of curing isolation antiseepage body for organic pollution described in any one in claim 1~6, it is characterized in that: described organic pollution is chloro thing.
CN201310524123.0A 2013-10-30 2013-10-30 Preparation method of curing isolation impervious body for organic pollutants Active CN103537481B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310524123.0A CN103537481B (en) 2013-10-30 2013-10-30 Preparation method of curing isolation impervious body for organic pollutants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310524123.0A CN103537481B (en) 2013-10-30 2013-10-30 Preparation method of curing isolation impervious body for organic pollutants

Publications (2)

Publication Number Publication Date
CN103537481A true CN103537481A (en) 2014-01-29
CN103537481B CN103537481B (en) 2014-12-31

Family

ID=49961559

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310524123.0A Active CN103537481B (en) 2013-10-30 2013-10-30 Preparation method of curing isolation impervious body for organic pollutants

Country Status (1)

Country Link
CN (1) CN103537481B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105176535A (en) * 2015-08-19 2015-12-23 河南省地质环境规划设计院有限公司 Composite oxidizing agent for remedying soil polluted by petroleum
CN106216370A (en) * 2016-08-04 2016-12-14 北京高能时代环境技术股份有限公司 A kind of method for repairing heavy metal polluted soil of farmland
CN107999531A (en) * 2017-12-08 2018-05-08 煜环环境科技有限公司 A kind of organic contamination place soil, underground water in-situ remediation material and its method
WO2018121327A1 (en) * 2016-12-27 2018-07-05 密西西比国际水务有限公司 Method and device for remediating contaminated soil
CN108262341A (en) * 2018-01-23 2018-07-10 北京高能时代环境技术股份有限公司 A kind of quick repair method of heavy metal polluted soil of farmland
CN109290356A (en) * 2018-09-05 2019-02-01 湖南新九方科技有限公司 A kind of administering method of pollution by polychlorinated biphenyles soil
CN110124609A (en) * 2019-05-17 2019-08-16 成都理工大学 Composite barrier material and preparation method thereof for contaminated site

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100777838B1 (en) * 2007-01-31 2007-11-28 주식회사 윈텍에이티에스 Soil restoration method
CN102350437A (en) * 2011-07-15 2012-02-15 沈阳环境科学研究院 Method for carrying out stabilization obstruction on soil with slight heavy metal pollution
CN102517028A (en) * 2011-09-29 2012-06-27 李小平 Curing agent for in situ restoration of polychloroalkane compound polluted soil
CN103030350A (en) * 2013-01-08 2013-04-10 常州工学院 Permeability-preventing grout for separating wall of landfill and preparation method
CN103286125A (en) * 2013-07-01 2013-09-11 华东理工大学 Method for removing hydrochloric ether contained in soil through chemical oxidation method
JP2013192816A (en) * 2012-03-21 2013-09-30 Nippon Sheet Glass Co Ltd Method for treating substance to be treated containing toxic compound

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100777838B1 (en) * 2007-01-31 2007-11-28 주식회사 윈텍에이티에스 Soil restoration method
CN102350437A (en) * 2011-07-15 2012-02-15 沈阳环境科学研究院 Method for carrying out stabilization obstruction on soil with slight heavy metal pollution
CN102517028A (en) * 2011-09-29 2012-06-27 李小平 Curing agent for in situ restoration of polychloroalkane compound polluted soil
JP2013192816A (en) * 2012-03-21 2013-09-30 Nippon Sheet Glass Co Ltd Method for treating substance to be treated containing toxic compound
CN103030350A (en) * 2013-01-08 2013-04-10 常州工学院 Permeability-preventing grout for separating wall of landfill and preparation method
CN103286125A (en) * 2013-07-01 2013-09-11 华东理工大学 Method for removing hydrochloric ether contained in soil through chemical oxidation method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
代国忠等: "《垃圾填埋场隔离墙浆材防渗作用的研究》", 《混凝土》, no. 4, 27 April 2013 (2013-04-27) *
任重等: "《面向污染场地的环境修复功能材料》", 《环境监测管理与技术》, vol. 23, no. 3, 25 June 2011 (2011-06-25) *
张长波等: "《污染土壤的固化/稳定化处理技术研究进展》", 《土壤》, vol. 41, no. 1, 15 February 2009 (2009-02-15) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105176535A (en) * 2015-08-19 2015-12-23 河南省地质环境规划设计院有限公司 Composite oxidizing agent for remedying soil polluted by petroleum
CN106216370A (en) * 2016-08-04 2016-12-14 北京高能时代环境技术股份有限公司 A kind of method for repairing heavy metal polluted soil of farmland
WO2018121327A1 (en) * 2016-12-27 2018-07-05 密西西比国际水务有限公司 Method and device for remediating contaminated soil
CN107999531A (en) * 2017-12-08 2018-05-08 煜环环境科技有限公司 A kind of organic contamination place soil, underground water in-situ remediation material and its method
CN108262341A (en) * 2018-01-23 2018-07-10 北京高能时代环境技术股份有限公司 A kind of quick repair method of heavy metal polluted soil of farmland
CN109290356A (en) * 2018-09-05 2019-02-01 湖南新九方科技有限公司 A kind of administering method of pollution by polychlorinated biphenyles soil
CN110124609A (en) * 2019-05-17 2019-08-16 成都理工大学 Composite barrier material and preparation method thereof for contaminated site
CN110124609B (en) * 2019-05-17 2020-12-08 成都理工大学 Composite barrier material for polluted site and preparation method thereof

Also Published As

Publication number Publication date
CN103537481B (en) 2014-12-31

Similar Documents

Publication Publication Date Title
CN103537481B (en) Preparation method of curing isolation impervious body for organic pollutants
Palmer et al. Chemical Enhancements to Pump-and-Treat Remediation 1
CN103881727B (en) The stabilizing and curing agent of remediating heavy metal and toxic organic compound combined contamination soil and using method thereof
Hou et al. Simultaneous reduction and immobilization of Cr (VI) in seasonally frozen areas: remediation mechanisms and the role of ageing
US10369604B2 (en) In-situ subsurface decontamination of sodic soil, clay and ground water
CN105290101B (en) A kind of method of pollution by polychlorinated biphenyles place soil remediation
CN100418647C (en) Method for treating waste mud of drilling well by harmless process
Xu et al. Inhibition of hydrogen sulfide generation from disposed gypsum drywall using chemical inhibitors
CN106799395B (en) A construction method for in-situ injection of environmentally friendly chemicals to remediate polluted sites
CN104164238A (en) Efficient solidification/stabilization repair reagent for soil contaminated by heavy metals
CN106311738B (en) A kind of in-situ oxidation reduction repair system
CN101830551B (en) A method for in-situ removal of arsenic from groundwater
CN114160558B (en) In-situ chemical barrier material for polluted soil and preparation and application thereof
Cao et al. Remediation of arsenic contaminated soil by coupling oxalate washing with subsequent ZVI/Air treatment
CN113578946B (en) Method for remedying arsenic pollution of soil
CN104043645B (en) A kind of arsenic Polluted Soil restorative procedure
CN102517028B (en) Curing agent for in situ restoration of polychloroalkane compound polluted soil
CN107159703A (en) As polluted soil renovation agent and its application
Karaca et al. Characterization of heavy metals in mine tailings and lake sediments: implications on remediation
CN111659721A (en) Mercury contaminated soil closed type in-situ leaching extraction stabilization restoration method
CN206553251U (en) Oxidation well of the in-situ treatment by chlorohydrocarbon polluted underground water
Hu et al. Pollution generation, migration and in situ control measures on coal refuses
TW201500123A (en) Contamination treatment for soil
CN102875113A (en) Covering flame retardant layer for preventing fire and preventing pollution of natural coal gangue dump
Battioui et al. Kinetic tests of mine waste neutralization by coal fly ash, Jerada Coal District, Morocco

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Li Haijian

Inventor after: Tang Xiaosheng

Inventor after: Li Ling

Inventor before: Li Haijian

Inventor before: Hu Bo

Inventor before: Feng Shuangjian

Inventor before: Li Ling

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: LI HAIJIAN HU BO FENG SHUANGJIAN LI LING TO: LI HAIJIAN TANG XIAOSHENG LI LING

C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: 2188 No. 213012 Jiangsu province Zhonglou District of Changzhou City Avenue

Patentee after: SUNTIME ENVIRONMENTAL REMEDIATION CO., LTD.

Address before: 213022 Taihu road Jiangsu city Changzhou province Xinbei hi tech Zone No. 30

Patentee before: Jiangsu Suntime Environmental Remediation Co., Ltd.

CP03 Change of name, title or address

Address after: 213000 2188 Longcheng Road, Zhong Lou District, Changzhou, Jiangsu

Patentee after: Shanda Environmental Restoration Co., Ltd.

Address before: 213012 2188 Longcheng Road, Zhong Lou District, Changzhou, Jiangsu

Patentee before: SUNTIME ENVIRONMENTAL REMEDIATION CO., LTD.

CP03 Change of name, title or address