摘要
为了解矿山环境中砷的自然净化能力及其净化机制,对兴仁典型高砷煤矿区溪流水系环境进行采样分析。结果表明,研究区水体和沉积物中砷含量从上游到下游均呈不断降低的变化趋势,水体显示较强的自净能力。上游水体中砷含量的降低主要是吸附沉淀作用,而溪流的简单稀释作用在下游也显得非常重要。
In order to understand the natural attenuation of arsenic and its mechanisms in the mining environment, water and sediment samples collected from the stream system of a high-arsenic coal mining area in Xingren County were analyzed. From upstream to downstream, the concentrations of arsenic in both water and sediment tend to decrease gradually. Arsenic removal from upstream water is due to adsorption and precipitation of Sn on sediments, while dilution also plays an important role downstream.
出处
《地球与环境》
CAS
CSCD
北大核心
2007年第4期315-320,共6页
Earth and Environment
基金
国家自然科学基金项目(40663001)
贵州省优秀科技教育人才省长专项资金项目(黔省专合字(2005)119)
贵州大学研究生创新基金(IFkarst200602)
关键词
自然净化
砷
水系环境
高砷煤矿区
natural attenuation
arsenic
water system environment
high-Sn coal mine area.
