摘要
对我国长江三角洲地区15个主要城市的46个污泥巾的多氯联苯（PCBs）和有机氯农药（OCPs）的含量与组分进行了较系统的分析，结果表明，该地区城市污泥中PCBs的含量在0—0．720mg／kg之间，平均为0．076mg／kg，大部分低于0．1mg／kg，仅2个样品巾PCBs含量超过我国农用城市污泥的控制标准（0．2mg/kg）。污泥中PCBs组分以PCB44检出量最高，PCB180、PCB99、PCB52、PCB74、PCB77和PCB167次之；供试城市污泥中OCPs的含量在0-0．426mg／kg之间，平均为0．055mg／kg，大部分低于0．05mg／kg。OCPs以o,p’-DDT检出量最高，其次为p,p’-DDE、β-HCH、δ-HCH、α—HCH、γ-HCH、p,p＇-DDD和p,p’-DDT。该地区城市污泥中PCBs和OCPs的含量、组分和分布与污泥类型、污水来源、污水处理工艺及化合物本身的理化性质等有关。
Concentrations and congeners of polychlorinated biphenyls （PCBs） and organochlorine pesticides （OCPs） in forty-six municipal sludges derived from fifteen cities in the Yangtze River Delta Area of China were determined by gas chromatography （GC） after ultrasonic extraction and silica gel cleanup. PCBs concentrations ranged from non-detectable to 0.720 mg/kg （dry weight, DW） and mg/kg. PCBs concentrations in only two sludge samples averaged 0.076 mg/kg, with most sludges containing 〈 0.1 were 〉 0.2 mg/kg, the limit value for sludge applied to agricultural land in China. OCPs concentrations varied between non-detectable and 0.426 mg/kg （DW）, with an average value of 0.055 mg/kg and most sludges contained 〈 0.05 mg/kg. Among PCBs, PCB44, PCB180, PCB99, PCB52, PCB74, PCB77 and PCB167 were most enriched in the sludges analyzed, and among OCPs, o, p＇-DDT, p, p＇-DDE, β-HCH, δ-HCH, α-HCH, γ-HCH, p, p＇-DDD and p, p＇-DDT were detected from major to minor. The congeners, concentrations and distributions of the two kinds of organic pollutants in the municipal sludges were related to sludge type, source and treatment technology, together with the physico - chemical properties of PCBs and OCPs.
出处
《土壤》
CAS
CSCD
北大核心
2006年第5期539-546,共8页
Soils
基金
国家自然科学基金重点项目(40432005)
国家重点基础研究发展规划项目(2002CB410810)
中国科学院知识创新项目(KZCX3-SW-429
CXTD-Z2005-4)共同资助。
关键词
长江三角洲
城市污泥
多氯联苯
有机氯农药
Yangtze River Delta, Municipal sludge, Polychlorinated biphenyls, Organochlorine pesticides
作者简介
申荣艳（1977～），女 ，黑龙江佳木斯人，博士研究生，主要从事污泥的农业资源化利用研究。E-mail：ryshenl204@yahoo．com.cn
通讯作者（ymluo@issas．ac．cn）
