Research status of steel slag used for soil remediation and improvement
LONG Hong-ming1,2, WU Hao-tian1, YU Xian-kun2,3, YE Yan-fei4, CHEN Yu5, ZHANG Hao1,2
1. Key Laboratory of Metallurgical Emission Reduction and Resources Recycling (Anhui University of Technology), Ministry of Education, Maanshan 243002, Anhui, China; 2. School of Metallurgical Engineering, Anhui University of Technology, Maanshan 243032, Anhui, China; 3. Sinosteel Maanshan General Institute of Mining Research Co., Ltd., Maanshan 243000, Anhui, China; 4. Baowu Environmental Technology (Zhanjiang) Resources Recycling Co., Ltd., Zhanjiang 524033, Guangdong, China; 5. College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
Abstract：According to the National Soil Pollution Survey Bulletin released by the Ministry of Environmental Protection and the Ministry of Land and Resources, heavy metal contaminated soil in China has caused serious harm to ecological environment and people's health, effective measures must be taken to repair and improve contaminated soil. Steel slag-based remediation materials are prepared by utilizing the high alkaline, porous and cementitious properties of steel slag for soil remediation and improvement, becoming one of the important ways. The physical and chemical properties of steel slag are firstly briefly introduced, steel slag-based remediation materials as soil remediation and improvement agents are specifically analyzed. Engineering application of steel slag-based remediation materials in soil remediation and improvement are pointed out respectively. Then, the development trend of steel slag-based remediation materials is reviewed. Eventually, it is proposed to optimize the properties of steel slag-based remediation materials and expand their applications in soils with different properties, and combined with lawn planting, leisure agriculture planting, agricultural landscape design and other development of a variety of steel slag-based restoration materials, which will be the main development directions of steel slag used for soil remediation and improvement in the future.
龙红明, 武皓天, 于先坤, 叶雁飞, 陈煜, 张浩. 钢渣用于土壤修复与改良的研究进展[J]. 中国冶金, 2023, 33(2): 1-7.
LONG Hong-ming, WU Hao-tian, YU Xian-kun, YE Yan-fei, CHEN Yu, ZHANG Hao. Research status of steel slag used for soil remediation and improvement[J]. China Metallurgy, 2023, 33(2): 1-7.
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2023, Vol. 33 
