Magnetic Influences of Cement Dust on Soil in Industrial Area and Its Environmental Implications

• 作者: Li Yong Zhao Yingquan Yao Jie
• 来源期刊: 地球科学进展
• 关键词: Cement dust Soil Magnetic property Environmental significance
• 年，卷（期）: null,（null）
• 所属期刊栏目: 研究论文
• 页码范围: 829-839
• 页数: 10页
• 分类号: P951
• 语种: 英文
• DOI: 10. 11867 / j. issn. 1001-8166. 2016. 08. 0829.

摘要

To monitor environmental implications of cement dust on soil in industrial area, magnetic parameters and mineral compositions were measured by the samples of the cement dust, cement factory dustfall, cement, coal ash, topsoil of green space in the factory and topsoil outside the factory. Results showed that the major magnetic minerals in the samples were magnetite, the magnetic mineral particle size of cement dust, dustfall, cement and coal ash was coarse Multi-Domian (MD) and Pseudo-Single- Domain (PSD). As topsoil of green space in the factory and topsoil outside the factory were polluted by cement dust, their magnetic properties had been obviously changed; the concentration of magnetic minerals elevated and particle size became coarser. The magnetic parameters ( χfd ,χARM / χ,χARM / SIRM) value can reflect the pollution level of the soil, the lower its value was, the more serious soil was polluted. X-ray diffraction results showed that the mineral compositions of the topsoil of green space in the factory and topsoil outside the factory were quartz and calcite, which were the same as cement dust. Magnetic parameters combination characteristics of topsoil can monitor the soil environmental changes in cement industry area.