医疗垃圾焚烧飞灰中重金属浸出的影响因素  

Influence Factors of Heavy Metals Leaching in Fly Ash from Medical Waste Incinerator

作　　者：刘富尧[1] 刘丹[1] 代以春[1] 徐黎黎[1] 

机构地区：[1]西南交通大学环境科学与工程学院,成都610031

出　　处：《工业安全与环保》2007年第7期38-39,共2页Industrial Safety and Environmental Protection

摘　　要：以四川某城市为例,对医疗垃圾焚烧飞灰进行了重金属的浸出特性实验,探讨了不同液固比、初始pH值及浸取剂对飞灰中重金属Cu、Zn、Pb、Cd、Ni的浸出影响。结果表明,重金属的浸出率随着液固比的增加而增加;重金属在酸性条件下较易浸出,而在碱性条件下渗滤较少;不同的浸取剂对重金属的浸出也有一定影响。The leaching experiments are perfonmed to conduct discussions on the relationships among liquid - to - solid ratio, initial pH value and the leaching effects of leaching solvents on heavy metals （Cu, Zn, Pb, Cd, Ni） in fly ash. It is concluded that the leaching ratio of heavy metals increases with the L/S, heavy metals are easy to leach under acid condition, while hardly leach under alkaline condition, and leaching characteristics are also influenced by the different leaching solvents.

关 键 词：医疗垃圾 飞灰 液固比 重金属含量 

分 类 号：X131[环境科学与工程—环境科学]