CN103639194B - A kind of method utilizing sodium bentonite to repair mercury contaminated soil - Google Patents
A kind of method utilizing sodium bentonite to repair mercury contaminated soil Download PDFInfo
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- CN103639194B CN103639194B CN201310726388.9A CN201310726388A CN103639194B CN 103639194 B CN103639194 B CN 103639194B CN 201310726388 A CN201310726388 A CN 201310726388A CN 103639194 B CN103639194 B CN 103639194B
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- contaminated soil
- mercury contaminated
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- bentonite
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Abstract
The invention discloses a kind of method utilizing sodium bentonite to repair mercury contaminated soil, sodium bentonite mixed foaming agent is made gel/foaming mud, fully mix with the soil on mercury contaminated soil surface, through a period of time process with after cultivating, can fix >=soil of 65% in mercury.Adopt technical solution of the present invention, simple, governance efficiency is high, and control expense is low, controls the measure that the loss of industrial pollution mercury enters Natural Circulation, have very important realistic meaning to research.
Description
Technical field
The present invention relates to technical field of soil remediation, relate to a kind of method utilizing sodium bentonite to repair mercury contaminated soil particularly.
Background technology
Heavy metal is because it cannot be eliminated, and inextirpable reason, causes many irreversible pollution condition to environment.Once enter in soil and underground water in a large number, the environmental hazard being difficult to repair will be caused.
Conventional method is all utilize the construction material such as cement, lime to carry out to fill and stablize, but because its stablizing effect is general, dissolution rate is higher, and has certain pollution, does not also receive extensive use.In recent years, the important research direction that effective heavy metal stabilizer becomes environment remediation industry is found.
Summary of the invention
The object of this invention is to provide a kind of method utilizing sodium bentonite to repair mercury contaminated soil.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
1. utilize sodium bentonite to repair a method for mercury contaminated soil, it is characterized in that, comprise the following steps:
Step 1), by sodium bentonite, uses 100 mesh sieve;
Step 2) by step 1 gained bentonite, mixed foaming agent makes gel;
The mercury contaminated soil of mercury contaminated soil ground surface 0-20 centimetre plough turns over by step 3), air-dry, grind, sieve for subsequent use;
The gel that step 2 mixed foaming is made by step 4), is spread on the soil that step 3 processed, and bentonite consumption is the gel that per kilogram soil uses containing sodium 10-15 mM, fully mixes with soil;
Step 5) maintains 60% of Tu earth Han Shui Liang≤field capacity, through three months, completes and once repairs.
The invention has the beneficial effects as follows:
Adopt technical solution of the present invention, simplicity of design, easy to operate; Without the need to the treatment facility of complexity, cost is low; Process is thorough, non-secondary pollution.
Detailed description of the invention
The present invention is described in detail below in conjunction with embodiment.
1. utilize sodium bentonite to repair a method for mercury contaminated soil, it is characterized in that, comprise the following steps:
Step 1), by sodium bentonite, uses 100 mesh sieve;
Step 2) by step 1 gained bentonite, mixed foaming agent makes gel;
The mercury contaminated soil of mercury contaminated soil ground surface 0-20 centimetre plough turns over by step 3), air-dry, grind, sieve for subsequent use;
The gel that step 2 mixed foaming is made by step 4), is spread on the soil that step 3 processed, and bentonite consumption is the gel that per kilogram soil uses containing sodium 10-15 mM, fully mixes with soil;
Step 5) maintains 60% of Tu earth Han Shui Liang≤field capacity, through three months, completes and once repairs.
Claims (1)
1. utilize sodium bentonite to repair a method for mercury contaminated soil, it is characterized in that, comprise the following steps:
Step 1), by sodium bentonite, uses 100 mesh sieve;
Step 2) by step 1 gained bentonite, mixed foaming agent makes gel;
The mercury contaminated soil of mercury contaminated soil ground surface 0-20 centimetre plough turns over by step 3), air-dry, grind, sieve for subsequent use;
The gel that step 2 mixed foaming is made by step 4), is spread on the soil that step 3 processed, and bentonite consumption is the gel that per kilogram soil uses containing sodium 10-15 mM, fully mixes with soil;
Step 5) maintains 60% of Tu earth Han Shui Liang≤field capacity, through three months, completes and once repairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726388.9A CN103639194B (en) | 2013-12-26 | 2013-12-26 | A kind of method utilizing sodium bentonite to repair mercury contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310726388.9A CN103639194B (en) | 2013-12-26 | 2013-12-26 | A kind of method utilizing sodium bentonite to repair mercury contaminated soil |
Publications (2)
| Publication Number | Publication Date |
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| CN103639194A CN103639194A (en) | 2014-03-19 |
| CN103639194B true CN103639194B (en) | 2015-09-30 |
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| CN201310726388.9A Active CN103639194B (en) | 2013-12-26 | 2013-12-26 | A kind of method utilizing sodium bentonite to repair mercury contaminated soil |
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| CN (1) | CN103639194B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238189A (en) * | 2019-07-01 | 2019-09-17 | 四川大学 | Repair the ferrous sulfate modified alta-mud and its preparation method and application of pollution of vanadium soil |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414166A (en) * | 2015-12-31 | 2016-03-23 | 陕西清扬环境科技有限公司 | Repair method for mercury-polluted soil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238189A (en) * | 2019-07-01 | 2019-09-17 | 四川大学 | Repair the ferrous sulfate modified alta-mud and its preparation method and application of pollution of vanadium soil |
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| CN103639194A (en) | 2014-03-19 |
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Address after: 215000 room A505, Graduate School, Nanjing University, Suzhou, Jiangsu, China Applicant after: JIANGSU GAIYA ENVIRONMENTAL ENGINEERING Co.,Ltd. Address before: Zhujiang Road Wuzhong District Mudu town of Suzhou city in Jiangsu province 215000 No. 999 building 3 room A305 Applicant before: JIANGSU GAIYA ENVIRONMENTAL ENGINEERING Co.,Ltd. |
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Address after: 215000 room A505, Graduate School, Nanjing University, Suzhou, Jiangsu, China Patentee after: JIANGSU GAIYA ENVIRONMENTAL SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 215000 room A505, Graduate School, Nanjing University, Suzhou, Jiangsu, China Patentee before: JIANGSU GAIYA ENVIRONMENTAL ENGINEERING Co.,Ltd. |
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Denomination of invention: A method for remediation of mercury contaminated soil using sodium based bentonite Effective date of registration: 20230627 Granted publication date: 20150930 Pledgee: Bank of Communications Ltd. Suzhou branch Pledgor: JIANGSU GAIYA ENVIRONMENTAL SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2023980046090 |
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