| 重金属螯合剂处理焚烧飞灰的稳定化技术研究 |
| 摘要点击 2359 全文点击 4052 投稿时间：1998-09-14 |
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| 中文关键词 重金属螯合剂 稳定化技术 垃圾焚烧飞灰 重金属废物 固体废弃物处理 |
| 英文关键词 heavy metal chelating agent stabilization technology fly ash heavy metal wastes solid waste treatment |
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| 中文摘要 |
| 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,本螯合剂对飞灰中重金属的总捕集效率高达97%以上,其效果显着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条件变化下二次污染的风险。 |
| 英文摘要 |
| 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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