Study on Treatment of Heavy Metals in Fly Ash by a Chelating Agent

• 作者: Yu Zhaohui Zhang Ruina Bi Zhujie Chen Shanping
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 固化粉煤灰 螯合剂 生活垃圾填埋场 重金属 污染控制标准 有机复合 垃圾焚烧厂 稳定作用
• 年，卷（期）: 2016,（2）
• 页码范围: 55-57
• 页数: 3页
• 分类号: X799.3

摘要

The fly ash from two municipal solid waste incineration plants in Shanghai was treated by the self-developed organic composite chelating agent. The results indicated that the stabilization effect of Pb in the fly ash by the composite chelating agent was the best,and the proportions of its easily leaching form in the two kinds of fly ash decreased from 29. 60% and 27. 49% to 3. 05% and 0. 29% respectively. The leaching toxicity of stabilized fly ash was lower than the limits of Standard for Pollution Control on the Landfill Site of Municipal Solid Waste( GB 16889- 2008),so it can be landfilled separately in the landfill site of municipal solid waste.