CN103611725B - 一种化学还原与化学淋洗相结合修复重金属污染土壤的方法 - Google Patents
一种化学还原与化学淋洗相结合修复重金属污染土壤的方法 Download PDFInfo
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- CN103611725B CN103611725B CN201310589728.8A CN201310589728A CN103611725B CN 103611725 B CN103611725 B CN 103611725B CN 201310589728 A CN201310589728 A CN 201310589728A CN 103611725 B CN103611725 B CN 103611725B
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- aqueous solution
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- 238000000034 method Methods 0.000 title claims abstract description 31
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- 238000002386 leaching Methods 0.000 title claims abstract description 24
- 239000007864 aqueous solution Substances 0.000 claims abstract description 69
- 238000005406 washing Methods 0.000 claims abstract description 55
- 239000000243 solution Substances 0.000 claims abstract description 36
- 238000004140 cleaning Methods 0.000 claims abstract description 29
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 28
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000001914 filtration Methods 0.000 claims abstract description 10
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
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- 239000003480 eluent Substances 0.000 abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract description 4
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052785 arsenic Inorganic materials 0.000 description 20
- 229910052793 cadmium Inorganic materials 0.000 description 14
- 238000010828 elution Methods 0.000 description 12
- 229910052745 lead Inorganic materials 0.000 description 11
- 229910002551 Fe-Mn Inorganic materials 0.000 description 10
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 10
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- 238000005065 mining Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000009837 dry grinding Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 239000004094 surface-active agent Substances 0.000 description 1
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CN201310589728.8A CN103611725B (zh) | 2013-11-20 | 2013-11-20 | 一种化学还原与化学淋洗相结合修复重金属污染土壤的方法 |
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CN201310589728.8A CN103611725B (zh) | 2013-11-20 | 2013-11-20 | 一种化学还原与化学淋洗相结合修复重金属污染土壤的方法 |
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CN103611725A CN103611725A (zh) | 2014-03-05 |
CN103611725B true CN103611725B (zh) | 2016-04-06 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104307866B (zh) * | 2014-06-19 | 2017-06-30 | 中科鼎实环境工程股份有限公司 | 一种化学氧化强化化学淋洗修复重金属污染土壤的方法 |
CN106085440A (zh) * | 2016-05-31 | 2016-11-09 | 汪立刚 | 一种重金属污染土壤复合淋洗剂 |
CN111672898B (zh) * | 2020-06-30 | 2022-04-01 | 南京浦世环境科技发展有限公司 | 一种重金属污染土壤的化学淋洗方法 |
CN115055510B (zh) * | 2022-06-14 | 2023-09-22 | 西北大学 | 一种重金属污染土壤的修复方法和应用 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101362146A (zh) * | 2008-09-12 | 2009-02-11 | 中山大学 | 一种用于同时去除土壤中重金属和砷的化学淋洗剂及其修复方法 |
CN102500612A (zh) * | 2011-10-28 | 2012-06-20 | 中南大学 | 一种用于重金属污染土壤的化学淋洗修复方法 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101362146A (zh) * | 2008-09-12 | 2009-02-11 | 中山大学 | 一种用于同时去除土壤中重金属和砷的化学淋洗剂及其修复方法 |
CN102500612A (zh) * | 2011-10-28 | 2012-06-20 | 中南大学 | 一种用于重金属污染土壤的化学淋洗修复方法 |
Non-Patent Citations (4)
Title |
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Batch washing of cadmium fron soil and sludge by a mixture of Na2S2O5 and Na2EDTA;C.Chaiyaraksa,N.Sriwiriyanuphap;《Chemosphere》;20040331;第56卷(第2004期);全文 * |
上海化学工业区土壤重金属形态分析;李宇庆等;《生态环境》;20040630;第13卷(第2期);第154页右栏第2-5行 * |
工业废弃地重金属污染土壤化学淋洗修复研究及工程示范;邹泽李;《中国博士学位论文数据库》;20090921;第78-79页 * |
工业废气地多金属污染土壤组合淋洗修复技术研究;董汉英等;《土壤学报》;20101130;第47卷(第6期);全文 * |
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