Study of sodium-group solution treatment of burning coal mining wastes for interaction with the environment

Collection of Research Papers of the National Mining University Pub Date : 2022-06-01 DOI:10.33271/crpnmu/69.112

I. Chobotko

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Abstract

Purpose. To propose a new approach to the treatment of coal mine wastes with sodium-based suspensions, thereby preserving the ecology of coal mining regions. Methodology. To solve these problems we applied methods of literature analysis, mathematical sta-tistics, method of ecological assessment of alternative technological solutions for the use of suspensions for the treatment of coal mining wastes. Findings. For the first time the use of sodium soda solution group: sodium carbonate, sodium hydro-gen carbonate and sodium hydroxide for treatment of waste mass is proposed. On the basis of the carried out researches interaction of the specified samples of the waste mass is revealed, taking into account influence of environment. Suggestions of soda solutions of sodium group treatment of waste mass, on the basis of which preservation of ecological stability of mining regions is achieved, are offered. Originality. The analysis of efficiency indicators of technological solutions for treatment of waste coal tailings by inhibitors on the basis of suspensions allowed to develop recommendations for use of sodium group suspensions in the treatment of tailings at the initial stage of formation of waste coal, which will ensure the environmental stability of mining regions. As a result of the study, a new technique of waste rock treatment with solutions of sodium group, which levels the influence of the environment on the chemical processes in the interstitial space of the waste rock of coal-mining is pro-posed. Practical implications. The suggested technique of treatment with suspensions on the basis of sodium group can be applied for the complex treatment of waste mass which will allow to prevent occurrence of ecological risks of pollution of mining regions, and also to predict the level of influence of environment on the waste mass treated with sodium solutions of factor of development of processes of self-ignition of coal-mining wastes.

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钠基溶液处理煤矿燃烧废弃物与环境相互作用的研究

目的。提出一种用钠基悬浮液处理煤矿废弃物的新方法，从而保护矿区生态。方法。为了解决这些问题，我们运用文献分析、数理统计、生态评价等方法对悬浮液处理煤矿废弃物的替代技术方案进行了研究。发现。首次提出使用碳酸钠、碳酸氢钠、氢氧化钠等钠溶液组处理废渣。在研究的基础上，揭示了考虑环境影响的特定试样的相互作用。在此基础上，提出了钠群碱液处理矿渣的建议，并在此基础上实现了矿区生态稳定的维护。创意。在悬浮液的基础上，通过对抑制剂处理废煤尾矿技术方案效率指标的分析，提出了在废煤形成初期使用钠基悬浮液处理尾矿的建议，从而保证矿区环境的稳定。在此基础上，提出了一种利用钠基溶液处理废石的新技术，消除了环境对采煤废石间隙化学过程的影响。实际意义。建议的以钠基为基础的悬浮液处理技术可应用于矸石的复合处理，既可防止矿区污染生态风险的发生，又可预测环境对钠溶液处理的矸石的影响程度及煤矸石自燃过程发展的影响因素。

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Collection of Research Papers of the National Mining University

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