Inorganic Chemicals Industry ›› 2025, Vol. 57 ›› Issue (1): 27-35.doi: 10.19964/j.issn.1006-4990.2024-0088

• Reviews and Special Topics • Previous Articles     Next Articles

Research progress of ceramsite prepared by sintering heavy metal-contaminated soil

WANG Li1(), YAN Xiaohong2, KE Guopeng3, MEI Jiaxin1, CHEN Mingyue1, LIU Jingyong3()   

  1. 1.China Construction Fourth Engineering Division Corp.,Ltd.,Guangzhou 510665,China
    2.Wuhan Technical;College of Communication,Wuhan 430065,China
    3.School of Environmental Science and;Engineering,Guangdong University of Technology,Guangzhou 510006,China
  • Received:2024-02-20 Online:2025-01-10 Published:2025-01-24
  • Contact: LIU Jingyong E-mail:250242548@qq.com;Liujy@gdut.edu.cn

Abstract:

Ceramsite is an effective resource utilization way of heavy metal-contaminated soil,which not only has high added value but also has a wide application prospect.Through literature research,firstly,the chemical composition of heavy metal contaminated soil in some areas of China was compared and analyzed,and the feasibility of preparing ceramsite from heavy metal contaminated soil was analyzed.Then,the process and influencing factors of preparing ceramsite from soil polluted by heavy metals were expounded,and the mechanism of ceramsite curing heavy metals was analyzed with chromium as an example.Finally,the current application direction and possible future application direction of heavy metal contaminated soil ceramsite were expounded,and some problems and prospects of heavy metal contaminated soil ceramsite were put forward.The results showed that it was feasible to sinter ceramsite in soil polluted by heavy metals,and the sintering process would be affected by factors such as raw material ratio and sintering mechanism.The sintered ceramsite had a good solidification effect on heavy metals,and its ceramsite products were currently used in the construction field,water treatment filter materials and ceramsite proppants were also possible application directions in the future.

Key words: contaminated soil, ceramsite, roast, heavy metal

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