| 化学改良剂对矿区土壤中Cu和Cd的修复 |
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| 引用本文： | 丁园,郝双龙,张建强,江增养,王胜强,舒婷,白娟.化学改良剂对矿区土壤中Cu和Cd的修复[J].安徽农业科学,2012(6):3339-3340,3373. |
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| 作者姓名： | 丁园 郝双龙 张建强 江增养 王胜强 舒婷 白娟 |
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| 作者单位： | 南昌航空大学环化学院,江西南昌,330063;南昌航空大学环化学院,江西南昌,330063;南昌航空大学环化学院,江西南昌,330063;南昌航空大学环化学院,江西南昌,330063;南昌航空大学环化学院,江西南昌,330063;南昌航空大学环化学院,江西南昌,330063;南昌航空大学环化学院,江西南昌,330063 |
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| 摘 要： | 目的]为了探明改良剂与土壤Cu和Cd的作用规律。方法]通过解吸试验和土培试验,分析粉煤灰和石灰为化学改良剂对矿区土壤Cu和Cd化学形态的影响。结果]当粉煤灰和石灰用量分别为土重的5.00%和0.10%时,Cu和Cd的浸提量可控制在阈值内(TCLP,USEPA)。结论]粉煤灰和石灰可有效降低土壤重金属可提取态的含量。
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| 关 键 词： | 重金属 石灰 粉煤灰 化学形态 矿区土壤 |
Chemical Remediation for Cu and Cd Polluted Soils in Adjacent Area of Mine |
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| Institution: | DING Yuan et al(College of Environment and Chemistry Engineering,Nanchang Hang Kong University,Nanchang,Jiangxi 330063) |
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| Abstract: | Objective] The research aimed to explore the rules of the interaction between chemical amendments(lime and fly ash) and Cu and Cd in the polluted soil.Method] Sorption and soil incubation experiments were carried out.The effects of chemical amendments(lime and fly ash) on chemical forms of Cu and Cd were studied.Result] The leaching contents of Cu and Cd were lower than the threshold of the standard(TCLP,USEPA),when the dose of fly ash and lime in the soils were 5% and 0.1%(by soil weight) respectively.After adding the amendments to the polluted soil,the soluble and exchangeable related Cu and Cd decreased,while carbonate related heavy metal and organic complex Cu and Cd increased.Conclusion] Fly ash and lime could effectively reduce the availability of heavy metals. |
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| Keywords: | Heavy metal Lime Fly ash Chemical form Mine soil |
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