文章基本信息

标题：Studies on Engineering and Microstructure Properties of Chromium(VI)- Contaminated Soil
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作者：Yuan Yuan Li ; Ting Ting Zhang
期刊名称：Nature, Environment and Pollution Technology
印刷版ISSN：0972-6268
出版年度：2021
卷号：20
期号：1
页码：411-416
DOI：10.46488/NEPT.2021.v20i01.049
语种：English
出版社：Technoscience Publications
摘要：Hexavalent chromium [Cr(VI)]-contaminated soils have introduced a serious problem in China. Cr(VI)is hazardous to both the environment and public health and may degrade the engineering propertiesof soils. Accordingly, the effects of Cr(VI) on the physicochemical, mechanical, and microstructure properties of Chinese clay were investigated in this study. Results show that Cr(VI) had a considerable negative effect on the physicochemical, mechanical, and microstructure properties of soil. Specifically, Cr(VI) changed the physicochemical properties and degraded the mechanical properties of soil, led to the aggregation of soil particles, and created a large void space. Cr(VI) also changed the mineral composition of the soil and converted clay minerals into calcite. The changes in the microstructure and mineral composition of the soil were the primary reasons for the differences in the engineering properties of Cr(VI)-contaminated soil.
关键词：Cr(VI)-contaminated soil;Physicochemical properties;Engineering properties;Microstructure