环江流域土壤污染现状及防治对策研究  

Current Situation of Soil Pollution in Huanjiang River Basin and the Countermeasures

作　　者：冯七平 FENG Qi-ping(Huanxian Branch of Qingyang Ecological Environment Bureau,Huanxian 745700,Gansu)

机构地区：[1]甘肃省庆阳市生态环境局环县分局,甘肃环县745700

出　　处：《陇东学院学报》2022年第2期94-99,共6页Journal of Longdong University

摘　　要：通过对环江流域井场、生活区域及耕地土壤中多种污染物的测定,明确了该流域的土壤污染状况,初步探明了污染原因,并提出了具体的修复措施。试验结果表明,环江流域油田井(站)场等石油生产区域石油烃超标倍数为0.02-19.0;砷、镉、铬(六价)、铜、铅、汞等37项污染因子均有检出;井(站)场周边农用地土壤镉、汞、砷、铅、铜、镍、锌、铬等8类重金属含量有积累增加的趋势。石油开采过程中原油泄露及化肥、农药、农用塑料薄膜、畜禽粪便施用、农作物秸秆、生活垃圾及污水的不合理处置,是导致该流域农用地土壤污染的主要原因,据此提出了相应的适合该流域农用地面源污染防治的技术方法、防治对策及石油污染土壤修复方法。Through the determination of various pollution elements in well sites,living areas and topsoil of the Huanjiang River Basin,the soil pollution status there was analyzed,and the causes and measures were discussed.The ratio of petroleum hydrocarbon exceeding the background value is 0.02-19.0 in areas as oilfield wells(stations)in Huanjiang River Basin;37 pollution factors such as arsenic,cadmium,chromium(hexavalent),copper,lead and mercury were detected.The contents of eight heavy metals,such as cadmium,mercury,arsenic,lead,copper,nickel,zinc and chromium tended to accumulate and increase.The leakage of crude oil and the unreasonable disposal of fertilizer,pesticide,agricultural plastic film,livestock manure,crop straw,domestic garbage and sewage in the process of oil exploitation are the reasons leading to soil pollution.We put forward corresponding technical methods and countermeasures for the prevention and control of non-point source pollution and the best way to remediate the oil-contaminated soil in the Huanjiang River Basin.

关 键 词：环江流域 土壤污染 防治对策 

分 类 号：X53[环境科学与工程—环境工程]