CN104722574A - New method for repairing mercury polluted soil by using byproduct ammonium thiosulfate recycled from coking desulfurization waste solution - Google Patents
New method for repairing mercury polluted soil by using byproduct ammonium thiosulfate recycled from coking desulfurization waste solution Download PDFInfo
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- CN104722574A CN104722574A CN201510077423.8A CN201510077423A CN104722574A CN 104722574 A CN104722574 A CN 104722574A CN 201510077423 A CN201510077423 A CN 201510077423A CN 104722574 A CN104722574 A CN 104722574A
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Abstract
The invention relates to a new method for repairing mercury polluted soil by using byproduct ammonium thiosulfate recycled from coking desulfurization waste solution. The method comprises the following steps: preparing ammonium thiosulfate into an aqueous solution, spraying the aqueous solution to the mercury polluted soil, soaking the mercury polluted soil, and then pumping out waste water so as to repair the soil; the byproduct ammonium thiosulfate recycled from coking desulfurization waste solution is chemically reacted with mercury in the soil to remove the toxic mercury in the soil so as to obtain the clean soil; the waste resource is recycled; according to the new method, safe and environment-friendly effects are achieved, the operation is convenient, and the mercury polluted soil can be treated in large scale.
Description
Technical field
The present invention relates to reparation and the improvement field of contaminated soil, refer in particular to the new method that a kind of accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor repairs mercury contaminated soil.
Background technology
Under its natural environment, mercury all has distribution in air, soil, water body, and the existence due to mercury endangers the health of humans and animals; At present, the restorative procedure of mercury contaminated soil mainly contains soil renovation, thermal desorption, phytoremediation and chemical extraction, wherein soil renovation contaminated soil is carried out dig, soil removal and replacement etc.; By contaminated soil is buried, change fresh soil, thus reach the object alleviating harm; Repair contaminated land consumption money effort in this way, there is no the existing problems of basic contaminated solution soil, but because technique is simple, be widely adopted now; Phytoremediation utilizes super enriching plant by enriching pollutants in plant, thus the process that pollutant is removed from soil; Pollutant is absorbed by root system of plant, and is transferred to the aerial part of plant, and pollutant is removed along with the first of plant; This method has high requirement to time and the plant that adopts, is not suitable for popularizing on a large scale; Chemical extraction utilizes the desorb of chemical extraction agent and dissolution that heavy metal is transferred to liquid phase from soil, then is further processed; Conventional extractant is easy to be trapped in soil as acids extractant, causes secondary pollution; Thermal desorption utilizes the volatile characteristic of mercury, heats soil, makes mercury volatilization in soil for steam, then is recycled after condensation thus reaches the effect of separation.This method needs high operation easier, be not suitable for the improvement of large-scale pollution soil, for this reason, we have developed the new method that a kind of accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor repairs mercury contaminated soil, and safety and environmental protection, easy to operate, the extensive mercury contaminated soil repairing method administered can be carried out.
Summary of the invention
The present invention seeks to provide a kind of accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor to repair the new method of mercury contaminated soil to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution used in the present invention is: a kind of accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor repairs the new method of mercury contaminated soil, ATS (Ammonium thiosulphate) is made into the aqueous solution, the aqueous solution is carried out extracting waste water out after sprinkling is soaked to mercury contaminated soil, makes soil repaired.
Preferably, with machinery, mercury contaminated soil is stirred when the described aqueous solution sprays to mercury contaminated soil.
Preferably, described ATS (Ammonium thiosulphate) is made into the aqueous solution of 10 %.
Preferably, mercury contaminated soil described in per kilogram should spray the 10 kg aqueous solution.
Preferably, described mercury contaminated soil should soak the aqueous solution 2 to 3 days.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Mercury generation chemical reaction in the accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor and soil is removed the poisonous mercury in soil by the new method that the accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor of the present invention repairs mercury contaminated soil, make soil repaired, realize waste resource again to utilize, and safety and environmental protection, easy to operate, the extensive mercury contaminated soil repairing method administered can be carried out.
Detailed description of the invention
The present invention is described in further detail for specific embodiment below.
The accessory substance ATS (Ammonium thiosulphate) that reclaims from coking desulfurization waste liquor of the present invention repairs the new method of mercury contaminated soil: take mercury content as 30mg/kg soil be experimental subjects;
Principle: Hg+S → HgS ↓
Embodiment 1: aqueous solution ATS (Ammonium thiosulphate) being made into 10 %, the ratio adding 1 kg thiosulfuric acid ammonium salt solution with per kilogram mercury contaminated soil is sprayed to mercury contaminated soil; For reaching better repairing effect, available mechanical carries out suitable stirring to contaminated soil; Soak after 2 days, extract waste water out, make soil repaired; Recording mercury in soils content after repairing is 7mg/kg, far above the grade III Standard value specified in " standard of soil environment quality " GB15618-2008.
Embodiment 2: aqueous solution ATS (Ammonium thiosulphate) being made into 10 %, the ratio adding 10 kg thiosulfuric acid ammonium salt solutions with per kilogram mercury contaminated soil is sprayed to mercury contaminated soil; For reaching better repairing effect, available mechanical carries out suitable stirring to contaminated soil; Soak after 2 days, extract waste water out, make soil repaired; Recording mercury in soils content after repairing is 1mg/kg, lower than the grade III Standard value specified in " standard of soil environment quality " GB15618-2008, reaches secondary standard value.
Embodiment 3: aqueous solution ATS (Ammonium thiosulphate) being made into 10 %, the ratio adding 100 kg thiosulfuric acid ammonium salt solutions with per kilogram mercury contaminated soil is sprayed to mercury contaminated soil; For reaching better repairing effect, available mechanical carries out suitable stirring to contaminated soil; Soak after 2 days, extract waste water out, make soil repaired; Recording mercury in soils content after repairing is 0.7mg/kg, lower than the grade III Standard value specified in " standard of soil environment quality " GB15618-2008, reaches secondary standard value.
The above ATS (Ammonium thiosulphate) is from the accessory substance reclaimed in coking desulfurization waste liquor.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Mercury generation chemical reaction in the accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor and soil is removed the poisonous mercury in soil by the new method that the accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor of the present invention repairs mercury contaminated soil, make soil repaired, realize waste resource again to utilize, and safety and environmental protection, easy to operate, the extensive mercury contaminated soil repairing method administered can be carried out.
Below be only embody rule example of the present invention, protection scope of the present invention is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all drops within rights protection scope of the present invention.
Claims (5)
1. the new method of the accessory substance ATS (Ammonium thiosulphate) reparation mercury contaminated soil reclaimed from coking desulfurization waste liquor, it is characterized in that, ATS (Ammonium thiosulphate) is made into the aqueous solution, the aqueous solution is carried out extracting waste water out after sprinkling is soaked to mercury contaminated soil, makes soil repaired.
2. the accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor according to claim 1 repairs the new method of mercury contaminated soil, it is characterized in that: stir to mercury contaminated soil with machinery when the described aqueous solution sprays to mercury contaminated soil.
3. the accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor according to claim 1 repairs the new method of mercury contaminated soil, it is characterized in that: described ATS (Ammonium thiosulphate) is made into the aqueous solution of 10 %.
4. the accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor according to claim 1 repairs the new method of mercury contaminated soil, it is characterized in that: mercury contaminated soil described in per kilogram should spray the 10 kg aqueous solution.
5. the accessory substance ATS (Ammonium thiosulphate) reclaimed from coking desulfurization waste liquor according to claim 1 or 2 or 3 or 4 repairs the new method of mercury contaminated soil, it is characterized in that: described mercury contaminated soil should soak the aqueous solution 2 to 3 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510077423.8A CN104722574A (en) | 2015-02-13 | 2015-02-13 | New method for repairing mercury polluted soil by using byproduct ammonium thiosulfate recycled from coking desulfurization waste solution |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510077423.8A CN104722574A (en) | 2015-02-13 | 2015-02-13 | New method for repairing mercury polluted soil by using byproduct ammonium thiosulfate recycled from coking desulfurization waste solution |
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Cited By (2)
| 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 |
| CN105458000A (en) * | 2016-01-13 | 2016-04-06 | 南京信息工程大学 | Method for remediating mercury-contaminated soil by combining byproduct ammonium thiosulfate with calendula officinalis |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1204603A (en) * | 1967-03-29 | 1970-09-09 | Ethyl Corp | Lubricant compositions |
| CN101786098A (en) * | 2010-04-16 | 2010-07-28 | 中国科学院地球化学研究所 | Method for promoting restoration of mercury contaminated soil plant |
| CN102583442A (en) * | 2012-01-19 | 2012-07-18 | 安徽工业大学 | Method for extracting salt after concentration of coked desulfurizing waste liquid |
| CN102873086A (en) * | 2012-10-09 | 2013-01-16 | 北京大学 | Mercury contaminated soil in-situ restoration method |
| CN104032137A (en) * | 2014-06-05 | 2014-09-10 | 东北大学 | Method for recovering mercury from mercury-contained tailings in form of selenide |
| CN104071807A (en) * | 2014-06-18 | 2014-10-01 | 黄进前 | Novel process for extracting ammonium sulfocyanate from coking desulfurization waste liquid |
-
2015
- 2015-02-13 CN CN201510077423.8A patent/CN104722574A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1204603A (en) * | 1967-03-29 | 1970-09-09 | Ethyl Corp | Lubricant compositions |
| CN101786098A (en) * | 2010-04-16 | 2010-07-28 | 中国科学院地球化学研究所 | Method for promoting restoration of mercury contaminated soil plant |
| CN102583442A (en) * | 2012-01-19 | 2012-07-18 | 安徽工业大学 | Method for extracting salt after concentration of coked desulfurizing waste liquid |
| CN102873086A (en) * | 2012-10-09 | 2013-01-16 | 北京大学 | Mercury contaminated soil in-situ restoration method |
| CN104032137A (en) * | 2014-06-05 | 2014-09-10 | 东北大学 | Method for recovering mercury from mercury-contained tailings in form of selenide |
| CN104071807A (en) * | 2014-06-18 | 2014-10-01 | 黄进前 | Novel process for extracting ammonium sulfocyanate from coking desulfurization waste liquid |
Non-Patent Citations (3)
| Title |
|---|
| 《贵金属生产技术实用手册》编委会编著: "贵金属生产技术实用手册 上", 《贵金属生产技术实用手册 上》 * |
| 张建苹: "焦化脱硫废液的清洁利用", 《科技创新与生产力》 * |
| 杨海君等: "利用Na2S2O3溶液萃取和回收污染土壤中的重金属", 《农业环境科学学报》 * |
Cited By (2)
| 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 |
| CN105458000A (en) * | 2016-01-13 | 2016-04-06 | 南京信息工程大学 | Method for remediating mercury-contaminated soil by combining byproduct ammonium thiosulfate with calendula officinalis |
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