Inorganic Chemicals Industry ›› 2026, Vol. 58 ›› Issue (2): 20-27.doi: 10.19964/j.issn.1006-4990.2025-0247

• Reviews and Special Topics • Previous Articles     Next Articles

Research progress and application prospects of preparation of ceramsite by coupling heavy metal-contaminated soil with multi-source solid waste

YU Jiao1(), SONG Shuxiang1, YANG Ruzhu2, LI Yaohuang2, DONG Shuyu2, ZHAO Zhili2, LIN Jingyu1, ZENG Wu2, FAN Li2, KE Guopeng3, LIU Jingyong3()   

  1. 1.GZEPI Environmental Service Co. ,Ltd. ,Guangzhou 510640,China
    2.Guangzhou Huanjing Environmental Protection Engineering Co. ,Ltd. ,Guangzhou 510640,China
    3.School of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou 510006,China
  • Received:2025-06-10 Online:2026-02-10 Published:2026-03-12
  • Contact: LIU Jingyong E-mail:yujiao98765@qq.com;Liujy@gdut.edu.cn

Abstract:

Resource utilization of heavy metal-contaminated soil is a key link in the field of soil remediation,among which the preparation of ceramsite by coupling heavy metal-contaminated soil with multi-source solid waste is an innovative approach to achieve waste-to-treat-waste.The research progress on preparation of ceramsite using heavy metal-contaminated soil as the main raw material and coupling it with solid wastes such as sludge,tailings,fly ash and red mud was systematically summarized.It was focused on analyzing the technical principles,process route,heavy metal solidification mechanisms and resource utilization advantages of ceramsite preparation by coupling heavy metal-contaminated soil with multi-source solid waste,revealed the potential pollution risks during the ceramsite preparation process,and put forward corresponding risk control strategies.The technology could realize physical encapsulation and chemical bonding fixation of heavy metals through high-temperature sintering,and endow ceramsite with properties such as light weight,high strength and porous adsorption,thus enabling it to have broad application prospects in construction,water treatment,landscaping and other fields.However,current technologies still faced challenges such as poor compatibility of multi-source solid wastes,high process energy consumption and risks of heavy metal secondary release.Future research needs to further optimize raw material compatibility,reduce energy consumption,and improve the risk assessment system,so as to promote the standardized and large-scale application of this technology.

Key words: heavy metal contaminated soil, multi-source solid waste, ceramisite, risk control, resource utilization

CLC Number: