某城镇污水处理厂压滤污泥重金属健康风险分析  

Health Risk Analysis of Heavy Metals in Pressure Filtration Sludge of an Urban Sewage Treatment Plant

作　　者：方宇媛 韩光磊 王红新 FANG Yuyuan;HAN Guanglei;WANG Hongxin(School of Materials and Environmental Engineering,Chizhou University,Chizhou 247700;Anhui Chizhou Jiuhua Power Generation Co.,LTD,Chizhou 247000,China)

机构地区：[1]池州学院材料与环境工程学院,安徽池州247000 [2]安徽池州九华发电有限公司,安徽池州247000

出　　处：《宿州学院学报》2022年第3期26-30,共5页Journal of Suzhou University

基　　金：安徽省教育厅高校自然科学研究重点项目(KJ2017A580);池州学院自然科学重点项目(CZ2018ZRZ08)。

摘　　要：采集池州某城镇污水处理厂压滤脱水污泥,检测其重金属元素(Cd、Hg、Pb、Cr、As、Ni、Zn和Cu)含量,开展重金属健康风险评价。结果表明:污泥中Zn含量最高,Hg含量最低,除Cd外,其他重金属的单因子指数均低于1;对于成人和儿童而言,手—口摄食途径均为主要暴露途径,且Zn暴露总量最高。儿童的重金属总摄入量大于成人,成人和儿童的非致癌风险综合指数分别为5.77×10^(-2)和1.55×10^(-1),均小于1,不存在非致癌风险;成人和儿童的致癌风险综合指数分别为3.16×10^(-5)和8.88×10^(-5),两者均在美国环境保护局(USEPA)提供的可接受致癌风险范围内,不存在致癌风险。The filter press sludge from a sewage treatment plant in Chizhou was collected and the contents of heavy metal elements(Cd, Hg, Pb, Cr, As, Ni, Zn, Cu) were analyzed.The health risk of heavy metal pollution was analyzed.The results show that the content of Zn in the sludge was the highest and the lowest was Hg.The single factor index of other heavy metals was less than 1.0 except Cd.For both adults and children, hand-mouth feeding was the main exposure route, and Zn exposure was the highest.The total intake of heavy metals in children was higher than that in adults.The comprehensive non-carcinogenic risk index for adults and children was 5.77×10;and 1.55×10;respectively, which were less than 1 indicating that there was no non-carcinogenic risk.While the comprehensive carcinogenic risk index for adults and children were 3.16×10;and 8.88×10;respectively which were within the acceptable carcinogenic risk range provided by USEPA,and there was no carcinogenic risk.

关 键 词：压滤污泥 重金属含量 污染水平 健康风险评价 

分 类 号：X828[环境科学与工程—环境工程]