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.
出处
《环境科学与技术》
CAS
CSCD
北大核心
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)
关键词
汞
形态分析
沉积物
化学浸提法
mercury
speciation
sediment
chemical extraction
