不同污染类型沉积物中汞的形态分布  

Mercury Species in Sediments Polluted by Different Industries

作　　者：郑冬梅[1,2] 王起超[2] 孙丽娜[1] 张仲胜[2,3] 

机构地区：[1]污染环境的生态修复与资源化技术教育部重点实验室,辽宁沈阳110044 [2]中科院东北地理与农业生态研究所,吉林长春110024 [3]中国科学院北京研究生院,北京100049

出　　处：《环境科学与技术》2010年第7期44-46,56,共4页Environmental Science & Technology

基　　金：辽河流域水污染综合治理技术集成与工程示范项目(2008ZX07208-003-004);中国科学院知识创新工程重要方向项目(KZCX3-SW-437)

摘　　要：采用连续化学浸提法技术对不同污染类型沉积物中的汞形态进行分析,结果表明,化工汞污染类型河流沉积物中汞形态的分布规律基本一致,强有机质结合态占总汞的比例比较大,其次为碱溶态;万山汞矿区残渣态汞所占比例最高;锌冶炼汞污染沉积物碱溶态所占的比例较高。由此可见,不同排放源对汞形态影响比较大。Sequential chemical extraction was used to study mercury species in sediments.Results indicated that mercury species were similar in sediments polluted by chemical industries,with mercury strongly binding with organic matter as primary and followed by species dissolved in alkali.Mercury in residual state was dominating in Wanshan mining area while species dissolved in alkali was dominating in sediments polluted by zinc smeltery,which indicated that mercury species varies largely with pollution source.

关 键 词：汞 形态分析 沉积物 化学浸提法 

分 类 号：X131.2[环境科学与工程—环境科学]