摘要
在分析废旧金属拆解场地浅层地下水中芘的检出和分布特征的基础上,对地下水中芘的污染来源、污染途径和污染控制因素进行了探讨。研究结果表明,场地中心和地下水下游2km范围内芘污染明显,垂直于地下水流向芘迁移距离较小,一般小于0.5km。芘在地下水中的迁移转化受地下水中pH、Eh及DO等因素的控制,弱酸性或中性环境以及厌氧强还原条件下,芘易于检出和迁移,一般难以生物降解。
Based on the detection and analysis of the distribution characteristics of pyrene in shallow ground water in a waste metal dismantling site,pyrene contamination sources,pathways and pollution mechanism are explored.Research results indicate that site center and site downstream 2km contaminated clearly by pyrene in shallow groundwater.Controlled by local groundwater flow,pyrene migrates smaller distance vertically to groundwater flows,less than 0.5km generally.Migration and transformation of pyrene in groundwater are also affected by factors such as pH,Eh and DO.It is difficult to biodegradation and easy to be checked out and migrate in acidic,neutral conditions,and anaerobic and strongly reducing conditions.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2012年第3期120-123,138,共5页
Hydrogeology & Engineering Geology
基金
浙江地区地下水污染调查评价(1212010634403)
关键词
污染场地
废旧金属拆解
浅层地下水
芘
contaminated sites
waste electrical appliance（machine） dismantling
shallow groundwater
pyrene
