济源市石河底泥重金属污染现状调查及评价

在对济源石河8个监测断面底泥中铅、镉、铬、镍、铜、锌、pH7个污染指标监测调查基础上,参照相关标准,对河流底泥污染状况进行了评价。评价结果表明,监测段底泥已受到重金属污染,部分河段污染严重。根据纯水、硫酸-硝酸、醋酸浸出试验结果,监测段底泥属于一般固体废物,但不宜送生活垃圾填埋场或能产生醋酸等有机酸的填埋场处置,填埋、堆存等处置前应进行无害化固定处理,尽可能降低其环境风险。

Investigation and Assessment on Pollution Status of Heavy Metal in Sediment of Shihe River in Jiyuan City

With the investigation and monitor of Pb、Cd、Cr、Ni、Cu、Zn and pH at 8 monitoring sites about the sediment in Shihe River in Jiyuan City by referring to the relative standards pollution status of heavy metal in sediment of the river is evaluated .The result showed that the sediment pollution from the heavy metal was quite obvious and part of sediment pollution is serious .According to the leaching test result by using pure water sulfuric acid nitric acid acetic acid the sediment in monitoring parts are general solid waste but they are not unfavorable to be treated at domestic waste landfill site or at the place where can produce organic acids such as acetic acid landfill disposal .Innoxious disposal should be done before landfill or stockpiling to reduce the environmental risk as far as possible .