沈阳市政污泥中重金属生态风险评价及源解析  

Ecological Risk Assessment and Source Analysis of Heavy Metals in Shenyang Municipal Sludge

作　　者：江宇 侯永侠[1] 丁睿尧 魏建兵[1] 李玉双[1] 宋雪英[1] 赵晓旭 Jiang Yu;Hou Yongxia;Ding Ruiyao;Wei Jianbing;Li Yushuang;Song Xueying;Zhao Xiaoxu(Laboratory of Regional Pollution Environment and Ecological Rehabilitation,Ministry of Education,Shenyang University,Shenyang 110044,China;Fujian Provincial Key Laboratory of Ecology-Toxicological Effects&Control for Emerging Contaminants,School of Environmental and Biological Engineering,Putian University,Putian 351100,China)

机构地区：[1]沈阳大学区域污染环境生态修复教育部重点实验室,辽宁沈阳110044 [2]莆田学院环境与生物工程学院福建省新型污染物生态毒理效应与控制重点实验室,福建莆田351100

出　　处：《山东化工》2022年第19期215-219,共5页Shandong Chemical Industry

基　　金：国家自然科学基金面上项目(No.41771200);沈阳市科技计划项目(No.20-206-4-02);福建省新型污染物生态毒理效应与控制重点实验室(莆田学院)开放经费资助课题(No.PY19004)。

摘　　要：为研究沈阳市污泥中营养物质含量及重金属的污染特征,选取沈阳市内13家污水处理厂污泥为研究对象,进行资源化潜力分析,并运用潜在生态风险评价法进行重金属生态风险评价研究,运用主成分分析对污泥重金属进行源解析研究。结果表明:沈阳市政污泥中全氮含量在2.10%~4.52%,全磷含量在0.78%~1.21%,有机质含量在263.52~392.75 g·kg^(-1);Cd、Cr、Pb、As、Hg、Ni、Cu、Zn的含量变化范围为0.50~14.29,60.65~792.27,16.56~80.85,9.73~106.72,0.80~2.85,17.47~149.09,55.46~652.07,305.32~3269.95 mg·kg^(-1);潜在生态风险评价法显示Hg、Cd、Cu的单因子污染指数较高,分别达到了276.12,127.70,32.49;源解析结果表明Cd、Cr、Ni、Cu和Zn污染来自电镀、机械制造、有色金属冶炼等工业生产,As污染主要来自家庭生活污水和医药和化肥等工业生产,Hg污染主要来自塑料、电池、电子等工业生产以及煤炭燃烧等。In order to study the content of nutrients in sludge and the pollution characteristics of heavy metals in Shenyang,the sludge of 13 sewage treatment plants in Shenyang was selected as the research object,and the potential of resource utilization was analyzed,and the potential ecological risk assessment method was used to evaluate the ecological risk of heavy metals.Use principal component analysis to conduct source analysis of heavy metals in sludge.The results showed that the total nitrogen content in Shenyang municipal sludge was between 2.10%and 4.52%,the total phosphorus content was between 0.78%and 1.21%,and the organic matter content was between 263.52 and 392.75 g·kg^(-1);The contents of Cd,Cr,Pb,As,Hg,Ni,Cu,Zn varied in the range of 0.50~14.29,60.65~792.27,16.56~80.85,9.73~106.72,0.80~2.85,17.47~149.09,55.46~652.07,305.32~3269.95 mg·kg^(-1).The single-factor pollution index is relatively high,reaching 276.12,127.70 and 32.49 respectively;the source analysis results show that Cd,Cr,Ni,Cu and Zn pollution comes from industrial production such as electroplating,machinery manufacturing,and non-ferrous metal smelting,and As pollution mainly comes from domestic life,sewage and industrial production such as medicine and fertilizer,Hg pollution mainly comes from industrial production such as plastics,batteries,electronics,and coal combustion.

关 键 词：市政污泥 重金属 生态风险评价 源解析 

分 类 号：X705[环境科学与工程—环境工程]