克拉玛依炼油厂达标排放废水库中重金属污染监测与评价

Monitoring and Evaluation of Heavy Metals Pollution in the Sewage Pool of Karamay Petrochemical Plant

对克拉玛依石化公司炼油厂达标排放废水库水和底泥中的10种重金属做了监测与评价,研究了其重金属的分布特征。水样的综合污染指数P为0.564,表现为轻度污染,其中Fe和Hg为主要污染分担者,其他重金属处于尚清洁范围。模糊综合评价法评价结果废水库为Ⅲ类水质。底泥地累积指数评价结果表明,Hg和Cd为中度污染,Pb为轻度污染。潜在生态风险指数法评价表明,Cd的单因子生态风险指数为133.2,为较重生态风险,Hg的单因子生态风险指数为225.9,为重度生态风险。除Pb和Cr外,Cu、Zn、Ni、As和Hg都低于全国多数湖泊底泥含量。

In this paper, Karamay Petrochemical Company Refinery waste water and reservoir water discharge standard of 10 heavy metals in sediment, monitoring and evaluation done to study the distribution of heavy metals in sewage library. Comprehensive water pollution index P was 0. 564, showing light pollution, including pollution of Fe and Hg as the main share of persons, other heavy metals in the Sliang Qingjie range. Fuzzy comprehensive evaluation by waste repository for the grade Iql. Sodimem to acctunulate index evaluation showed that, Hg and Cd as moderately polluted, Pb light pollution. Evaluation of potential ecological risk index showed that, Cd single factor ecological risk index for 133.2,for the heavy ecological risk, Hg single - factor ecological risk index for 225.9,severe ecological risk. In addition to Pb and Cr addition, Cu, Zn,Ni,As and Hg are below the national majority of lake sediment content.