剩余污泥中PCDD/Fs与有机金属化合物的分布特征  

Distribution Characteristics of PCDD/Fs and Organometallic Compounds in Surplus Sludge

作　　者：鲁莽 

机构地区：[1]景德镇陶瓷大学材料科学与工程学院,江西景德镇333403

出　　处：《化学与生物工程》2018年第2期26-32,共7页Chemistry & Bioengineering

基　　金：江西省教育厅科学技术研究项目(GJJ160886);江西省自然科学基金项目(20171BAB203023)

摘　　要：分析测定了24座污水处理厂的剩余污泥中多氯代二苯并二英/呋喃(PCDD/Fs)、有机锡和有机铅化合物的浓度及其同系物分布特征,并计算了PCDD/Fs的国际毒性当量(I-TEQ)值。结果表明,剩余污泥中的PCDD/Fs总浓度为104.1~1 661.0pg·g^(-1)和2.51~75.21pg·g^(-1)(I-TEQ),I-TEQ值低于我国土地利用限值;三丁基锡、二丁基锡和二氯二苯基锡的浓度分别为247~3 886ng·g^(-1)、126~629ng·g^(-1)和84~2 133ng·g^(-1);有机铅化合物的总浓度为85~668ng·g^(-1),表明有机铅化合物对环境的潜在影响仍然存在。We analyzed and determinated the concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans（PCDD/Fs）,organotin and organolead compounds and the distribution characteristics of their homologues in the surplus sludge from 24 wastewater treatment plants.Moreover,we calculated total international toxicity equivalent（I-TEQ）values of PCDD/Fs.The results showed that,the total concentrations of PCDD/Fs were from 104.1 pg·g-1 to 1 661.0 pg·g-1 and 2.51 pg·g-1（I-TEQ）to 75.21 pg·g-1（I-TEQ）,indicated that I-TEQ values were below Chinese legislation limit value regulated for land application.The concentrations of tributyltin,dibutyltin,and diphenyltin-dichloride were from 247 ng·g-1 to 3 886 ng·g-1,126 ng·g-1 to 629 ng·g-1,and 84 ng·g-1 to 2 133 ng·g-1,respectively.Furthermore,the total concentrations of organolead compounds were from 85 ng·g-1 to 668 ng·g-1,which indicated that the environmental impact of organolead compounds remained in China.

关 键 词：剩余污泥 多氯代二苯并二英/呋喃(PCDD/Fs) 有机锡 有机铅 四乙基铅 分布特征 

分 类 号：X705[环境科学与工程—环境工程]