某河流河口污染沉积物取样研究与特征分析  

Sampling and Characteristic Analysis of Contaminated Sediments in a River Estuary

作　　者：韩正平 张立伟 陈雪雯 HAN Zheng-ping;ZHANG Li-wei;CHEN Xue-wen(North China Municipal Engineering Design&Research Institute Co.Ltd.,Tianjin 300381,China;Shandong Shuifalurun Service Technology Co.Ltd.,Jinan 250013,China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300381 [2]山东水发鲁润水务科技有限公司,山东济南250013

出　　处：《中国给水排水》2020年第17期79-84,共6页China Water & Wastewater

摘　　要：针对河口地区日益恶化的生态问题,设计开发了对某河流河口地区污染沉积物进行多位点、多层次的取样分析系统,并根据国内现有标准规范制定了污染程度判定依据,同时研究了该河口污染沉积物特征对河口污染的影响。结果表明,污染该地区的主要超标源为DDT和六六六。DDT浓度在整个采样深度内始终维持较高的水平,最高可达1.51 mg/kg,超标位点占全部测量位点的60%。六六六分布形式与DDT相同,最高浓度达1.89 mg/kg。通过对这2种污染物的特征分析,推进了河口地区的生态恢复工程建设。Aiming at the deteriorating ecological problems in estuary areas,a multi-point and multi-level sampling and analysis system for contaminated sediments in a river estuary area was designed and developed.According to the existing domestic standards,a criterion for determining the pollution degree was established,and influence of the characteristics of the contaminated sediments on estuary pollution was studied.The main sources of pollution in the region were dichlorodiphenyltrichloroethane(DDT)and benzene hexachloride(BHC).The DDT concentration was maintained at a high concentration level throughout the sampling depth.The maximum DDT concentration was up to 1.51 mg/kg,and the over-standard sites accounted for 60%of all the measured sites.The distribution pattern of BHC was the same as DDT,and the maximum concentration was 1.89 mg/kg.Through analysis of the characteristics of these two pollutants,the ecological restoration project in the estuary area had been promoted.

关 键 词：污染沉积物 河口 样本处理 特征分析 

分 类 号：TU992[建筑科学—市政工程]