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• 基金项目：

• 蔡士悦
• 中国环境科学研究院

• 杨居荣
• 北京师范大学

• 解淑珍
• 中国农业科学院

• 李俊国
• 中国农业科学院

• 韩步兴
• 北京农业科学院

• 王庆敏
• 北京农业科学院

• 摘要：通过野外调查研究和室内模拟试验,研究了宫厅水库底质中砷的污染。作者从1973至1974年在水库中选用了15个底质样点,基本上查清了水库底泥中砷的含量和分布。并探明了这种分布的原因是由于伊利石等粘粒矿物和有机质含量不同而形成的。模拟研究表明,对底质中砷的吸附是否起净化库水作用,主要取决于pH和Eh值的变化。对水库底质含砷量的t显著性测验表明,水库底质受到了砷的轻度污染。但是,由于水库中pH值等水化学条件有利于底质对砷的吸附固定,故水质没有受到砷的污染。水质含砷量的t测验也证实了这点。

• Abstract：Pollution of arsenic in bottom sediment of Guantin reservoir has been studied by field investigation and simulation test. 15 sampling stations were set up in Guantin reservoir from 1973 to 1974. Content and distribution of arsenic in bottom sediment of reservoir were obtained, and distribution is found due to difference in content of illite clay minerals (<0.005mm) and organic matter.Simulation study showed that adsorption of arsenic in bottom sediment has some effect on purification of the reservoir water and is dependent upon change of pH and Eh.The t test of significance on content of arsenic in bottom sediment of the reservoir indicated that there was slight pollution of arsenic in bottom sediment. Chemical condition of reservoir water, such as pH etc. favors adsorption of arsenic in bottom sediment. Therefore, the reservoir water itself might be said of not being polluted yet. It was confirmed by t test of significance with arsenic content in water.

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