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Effects of biomass co-pyrolysis and herbaceous plant colonization on the transformation of tailings into soil like substrate

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Journal of Environmental Sciences 2025年第1期147卷 230-243页

作者： Bin Zhu Meiyan Si Xin Xie Ximin Yan Jianhong Huang Senlin Tian Ping Ning Faculty of Environmental Science and Engineering Kunming University of Science and TechnologyKunming 650500China Guizhou Research Institute of Coal Mine Design Co. Ltd.Guiyang 550025China

Enhancing soil organic matter characteristics,ameliorating physical structure,mitigating heavy metal toxicity,and hastening mineral weathering processes are crucial approaches to accomplish the transition of tailings substrate to a soil-like *** incorporation of biomass co-pyrolysis and plant colonization has been established to be a significant factor in soil substrate formation and soil pollutant *** this,there is presently an absence of research efforts aimed at synergistically utilizing these two technologies to expedite the process of mining tailings soil substrate *** current study aimed to investigate the underlying mechanism of geochemical changes and rapid mineral weathering during the process of transforming tailings substrate into a soil-like substrate,under the combined effects of biomass co-smoldering pyrolysis and plant *** findings of this study suggest that the incorporation of smoldering pyrolysis and plant colonization induces a high-temperature effect and biological effects,which enhance the physical and chemical properties of tailings,while simultaneously accelerating the rate of mineral *** improvements include the amelioration of extreme pH levels,nutrient enrichment,the formation of aggregates,and an increase in enzyme activity,all of which collectively demonstrate the successful attainment of tailings substrate *** of the acceleratedweathering was verified by phase and surfacemorphology analysis using X-ray diffraction and scanning electron *** corrosion and fragmentation on the surface *** weathering resulted in corrosion and fragmentation of the surface of the treated *** study confirms that co-smoldering pyrolysis of biomass,combined with plant colonization,can effectively promote the transformation of tailings into soil-like *** method has can effectively address the key challenges that have previously hind

关键词： Smoldering Biomass co-pyrolysis Phytoremediation Soil-like substrate tailing restoration

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