粉煤灰中重金属Pb Cd的有效态研究  

Study on Availability of Pb,Cd in Pulverous Coal Ash

作　　者：张清敏[1] 胡国臣[1] 王忠[1] 甘澍频 韩梅[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071

出　　处：《农业环境保护》2000年第6期350-351,共2页Agro-Environmental Protection

摘　　要：采用形态连续提取法 ,研究了粉煤灰中重金属Pb、Cd的水溶态、可交换态、碳酸盐结合态、氧化锰结合态以及强结合态的含量。结果表明 ,粉煤灰中Pb、Cd的有效态含量都极低,主要是以强结合态存在。A test was performed to revealed the transformation of Pb, Cd and other forms in pulverous coal ash by successive extraction. The result showed that the availability of Pb, Cd in the coal ash was low, while their forms were in strong bound with 48.62 mg/kg, and 0.10mg/kg for Pb and Cd, respectively.

关 键 词：粉煤灰 连续提取 有效态 强结合态 铅 镉 

分 类 号：X132[环境科学与工程—环境科学] TQ533.1[化学工程—煤化学工程]