Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wenzhi Street 34, Wuhan, 430072, Hubei, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wenzhi Street 34, Wuhan, 430072, Hubei, China.
School of Resources and Environmental Engineering, Wuhan University of Technology, Wenzhi Street 34, Wuhan, 430072, Hubei, China.
J Environ Manage. 2024 Sep;368:122200. doi: 10.1016/j.jenvman.2024.122200. Epub 2024 Aug 24.
Soil reconstruction is a critical step in the restoration of environments affected by mining activities. This paper provides a comprehensive review of the significant role that microbial processes play in expediting soil structure formation, particularly within the context of mining environment restoration. Coal gangue and flotation tailings, despite their low carbon content and large production volumes, present potential substrates for soil reclamation. These coal-based solid waste materials can be utilized as substrates to produce high-quality soil and serve as an essential carbon source to enhance poor soil conditions. However, extracting active organic carbon components from coal-based solid waste presents a significant challenge due to its complex mineral composition. This article offers a thorough review of the soilization process of coal-based solid waste under the influence of microorganisms. It begins by briefly introducing the primary role of in situ microbial remediation technology in the soilization process. It then elaborates on various improvements to soil structure under the influence of microorganisms, including the enhancement of soil aggregate structure and soil nutrients. The article concludes with future recommendations aimed at improving the efficiency of soil reconstruction and restoration, reducing environmental risks, and promoting its application in complex environments. This will provide both theoretical and practical support for more effective environmental restoration strategies.
土壤重构是受采矿活动影响的环境恢复的关键步骤。本文全面回顾了微生物过程在加速土壤结构形成方面所起的重要作用，特别是在采矿环境恢复方面。尽管煤矸石和浮选尾渣的碳含量低、产量大，但它们具有作为土壤开垦的潜在基质的潜力。这些基于煤的固体废物可用作生产高质量土壤的基质，并作为增强贫瘠土壤条件的重要碳源。然而，从基于煤的固体废物中提取活性有机碳成分具有挑战性，因为其具有复杂的矿物成分。本文深入探讨了微生物影响下的基于煤的固体废物的土壤化过程。文章首先简要介绍了原位微生物修复技术在土壤化过程中的主要作用。然后阐述了微生物影响下土壤结构的各种改善，包括增强土壤团聚体结构和土壤养分。文章最后提出了未来提高土壤重构和恢复效率、降低环境风险以及促进其在复杂环境中应用的建议。这将为更有效的环境恢复策略提供理论和实践支持。
