凉水河污染对土壤和地下水的影响  

Influences of pollution of Liangshui River on soil and groundwater

作　　者：李志萍[1] 丁仁伟[1] 陈肖刚[1] 沈照理[2] 钟佐[2] 

机构地区：[1]华北水利水电学院岩土工程系,河南郑州450008 [2]中国地质大学水资源与环境工程学院,北京100083

出　　处：《水利水电科技进展》2006年第2期17-20,共4页Advances in Science and Technology of Water Resources

基　　金：国家重点基础研究发展规划项目(G1999045706);华北水利水电学院青年科研基金(HSQJ2004005)

摘　　要：在凉水河下游取河床底泥及河床下部土样,分析其NH3-N、磷和有机物的变化,发现底泥对NH3-N和磷的去除发挥了很大作用,分别是下部土壤吸附量的10倍和1倍多;土中5种氯代烃均有检出,是河水长期渗漏积累的结果。凉水河流域内的野外试验结果表明,凉水河对地下水存在污染,污染组分主要是CODCr,NH3-N也有一定污染,其他无机污染组分如NO3-N,Cr6+,TP和Pb2+对地下水的影响较小,氯代烃对地下水也有一定影响。据推测,凉水河污染对地下水的影响范围大概在河两侧80 m范围内。Based on the analysis of variation of NH_3-N,phosphorus and organic compounds in soil samples from bottom mud and penetration media of river bed,it is found out that bottom mud has great effects on removal of NH_3-N and phosphorus,the amounts of which in mud are over ten times and one time as high as those in penetration media,respectively.Five kinds of chlorinated hydrocarbon were detected from soil samples,and they were the result of long-term penetration and accumulation.The results of pumping tests in the river basin indicate that groundwater has been polluted by the Liangshui River: the main pollution composition is COD_(Cr),while NH_3-N has some influence;other inorganic compositions,such as NO_3-N,Cr^(6+),TP,and Pb^(2+) have little influence on groundwater,while chlorinated hydrocarbon also influences groundwater to a certain extent.It is predicted that the range of groundwater pollution caused by the Liangshui River does not go beyond 80?m away from each side of the river.

关 键 词：底泥污染 土壤污染 地下水污染 CODCR NH3-N 氯代烃 凉水河 

分 类 号：X522[环境科学与工程—环境工程]