摘要
利用AMA 254-Automatic solid/liquid Hg Analyzer对上海老港垃圾填埋场不同年份封场单元上覆土壤中的汞进行了系统研究,发现垃圾填埋场的汞主要以气态形式进行扩散释放。上覆土壤中的汞含量与土壤自身的特性有关,上覆土壤中总有机碳、土壤总汞、易挥发汞和结合态汞之间具有明显的相关性,影响并控制着汞的释放,同时垃圾封场时间对垃圾填埋场中汞的释放有明显影响。不同成熟度垃圾的上覆土壤中汞都具有次表面样品总汞含量高于表面样品的特点,但变化趋势不同。
Mercury in topsoil samples from the Laogang Landfill was determined with an AMA 254-Automatic Solid/Liquid Hg Analyzer. Mercury is released in the form of gaseous mercury. There are strongly positive correlations among organic carbon, total mercury, gaseous mercury and combined mercury in the topsoil. Mercury contents of the topsoil are affected by its properties and the maturity of garbage. Although all sub-surface samples contain higher mercury than surface samples, the contents of Hg in profile soil overlying garbages of different maturities show different trends of variation.
出处
《地球与环境》
CAS
CSCD
北大核心
2005年第1期6-10,共5页
Earth and Environment
基金
国家自然科学基金 ( 20077016 )
中国博士后基金(2002032148)
关键词
上海
老港
汞
垃圾填埋场
释放
Shanghai
Laogang
mercury
landfill
release
