粉煤灰堆放场Cr^(6+)离子的溶出规律

Stripping Law of Cr^(6+) in Fly Ash

通过对Cr的主要排放源——粉煤灰进行静溶和淋溶实验,分析了粉煤灰中Cr6+离子的析出规律。结果表明:新形成的干灰中Cr6+的溶出能力大于堆放场内湿灰的溶出能力,且堆放场内湿灰的堆放时间越长,Cr6+的溶出量越高。此规律为粉煤灰堆放场的选址及查找地下水中Cr6+的污染源提供理论依据。

Through static dissolution and eluviation experiment of fly ash,the precipitable law of Cr6+ in fly ash was analyzed.The results showed that the stripping capacity of Cr6+ in dry ash is greater than wet ash,the longer the ash piled the higher the Cr6+ stripped.The law provides a theoretical basis for the location of ash site and finding the source of Cr6+ in groundwater.