西安工程大学学报2025，Vol.39Issue(5)：66-74,9.DOI:10.13338/j.issn.1674-649x.2025.05.008
煤气化渣在土壤改良中的资源化利用进展
Progress in resource utilization of coal gasification slag in soil improvement
摘要
Abstract
As the scale of the coal chemical industry continues to expand,the annual output of coal gasification slag has exceeded 6.0×107 tons,and its environmentally friendly disposal and high-value utilization become an important issue in the field of solid waste resource utilization.Based on the dual needs of collaborative governance of coal-based solid waste and improvement of soil quality,this paper systematically sorted out the physical and chemical properties of coal gasi-fication slag,clarified its key mechanisms in soil improvement,and then focused on discussing the environmental risks and scientific challenges of multi-objective improvement technologies,in or-der to provide a theoretical basis and technical route reference for promoting the coordinated de-velopment of resource utilization of coal gasification slag and sustainable soil management.Exist-ing studies showed that relying on its characteristics such as multi-level pore structure and high specific surface area,coal gasification slag could effectively improve the physical and chemical properties of sandy soil,saline-alkali soil and acidic soil,optimize soil structure,and enhance soil water and fertilizer retention performance through the triple synergistic mechanism of physical regulation,chemical improvement and pollution control.However,existing studies had bottleneck problems such as imperfect risk assessment systems,insufficient long-term effect data,and un-clear multi-medium synergistic mechanisms.Therefore,this paper proposed research directions such as constructing risk assessment models,establishing long-term positioning observation sys-tems,developing multi-source material collaborative improvement paths,and exploring supporting pH buffering technologies for acidic soil.关键词
土壤改良/资源化利用/煤基固体废物/煤气化炉渣/固体废物利用/重金属污染修复/生态风险评估Key words
soil improvement/resource utilization/coal-based solid wastes/coal gasification slag/solid waste utilization/heavy metal remediation/ecological risk分类
资源环境引用本文复制引用
亢福仁,任芷萱,高伟..煤气化渣在土壤改良中的资源化利用进展[J].西安工程大学学报,2025,39(5):66-74,9.基金项目
陕西省科技厅区域创新能力引导计划项目(2021QFY04-03/1507) （2021QFY04-03/1507）
陕西省教育厅一般专项科学研究计划项目(24JK0741) （24JK0741）
