| 重金属螯合剂处理焚烧飞灰的稳定化技术研究 |
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| 引用本文： | 蒋建国,王伟,李国鼎,那崇铮,甑晓月,赵翔龙.重金属螯合剂处理焚烧飞灰的稳定化技术研究[J].环境科学,1999,20(3):13-17. |
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| 作者姓名： | 蒋建国 王伟 李国鼎 那崇铮 甑晓月 赵翔龙 |
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| 作者单位： | 清华大学环境科学与工程系 |
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| 摘 要： | 进行了垃圾焚烧飞灰的新型稳定化药剂－－重金属螯合剂的实验室研究，探讨了本螯合剂处理焚烧飞灰的稳定化工艺流程及处理效果。结果表明，本螯合剂夺悄灰中重金属的总捕集效率高达９７％以上，其效果显著优于无机稳定化药剂Ｎａ２Ｓ和石灰，且处理后的飞灰能达到重金属废物的填埋控制标准，同时，其处理后的飞灰的最大浸出量远低于无机稳定化药剂处理后的飞灰，且能在较宽的ｐＨ范围内都具有好的稳定化效果，减少了稳定化产物在环境
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| 关 键 词： | 重金属 螯合剂 稳定化 垃圾焚烧飞灰 废物 |
| 收稿时间： | 1998/9/14 0:00:00 |
Experimental Study on the Chemical Stabilization Technology in Treating with Fly Ash Using Heavy Metal Chelating Agent |
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| Jiang Jianguo,Wang Wei,Li Guoding,Na Chongzheng,Zeng Xiaoyue and Zhao Xianglong.Experimental Study on the Chemical Stabilization Technology in Treating with Fly Ash Using Heavy Metal Chelating Agent[J].Chinese Journal of Environmental Science,1999,20(3):13-17. |
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| Authors: | Jiang Jianguo Wang Wei Li Guoding Na Chongzheng Zeng Xiaoyue and Zhao Xianglong |
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| Institution: | Dept. of Environ.Science and Engineering, Tsinghua University, Beijing 100084, China;Dept. of Environ.Science and Engineering, Tsinghua University, Beijing 100084, China;Dept. of Environ.Science and Engineering, Tsinghua University, Beijing 100084, China;Dept. of Environ.Science and Engineering, Tsinghua University, Beijing 100084, China;Dept. of Environ.Science and Engineering, Tsinghua University, Beijing 100084, China;Dept. of Environ.Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | The synthesizing method of heavy metal chelating agent was explored in this paper.The technology process and treatment efficiency of the chelating agent in treating with fly ash were experimentally studied.The results indicated that the efficiency of heavy metal chelating agent in treating with fly ash was higher than that of using Na2S and lime,futhermore,the treated fly ash using this chelating agent can reach the landfilling standards for heavy metal waste.The maximum leaching quantity of heavy metal for the treated fly ash using this chelating agent was much lower than that for the treated fly ash using Na2S and lime,and it can keep stabilization within a broader pH value.Thus the risk of secondary pollution for the treated waste was reduced dramatically when the environment condition changes. |
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| Keywords: | heavy metal chelating agent stabilization technology fly ash heavy metal wastes solid waste treatment |
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