Improvement of the Mine Water Purification Efficiency via Modified Settling Tank

Coal mining technologies always lead to tremendous environmental pollution of air, water resources, lands and biodiversity, both in regional and global scale. The level of environmental safety and ecological quality of the coal-mining region significantly decreases due to mining operations. In parti...

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Autores principales:	Oleksandr Kovrov, Daria Kulikova
Formato:	article
Lenguaje:	EN
Publicado:	Polish Society of Ecological Engineering (PTIE) 2022
Materias:	coal mine mine water suspended particles settling tank storage pond hydraulic size of suspended particles water purification efficiency Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/a7805109cc7241dd88aa6008441314fd
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spelling	oai:doaj.org-article:a7805109cc7241dd88aa6008441314fd2021-11-22T11:14:28ZImprovement of the Mine Water Purification Efficiency via Modified Settling Tank2719-705010.12912/27197050/142943https://doaj.org/article/a7805109cc7241dd88aa6008441314fd2022-01-01T00:00:00Zhttp://www.ecoeet.com/Improvement-of-the-Mine-Water-Purification-Efficiency-via-Modified-Settling-Tank,142943,0,2.htmlhttps://doaj.org/toc/2719-7050Coal mining technologies always lead to tremendous environmental pollution of air, water resources, lands and biodiversity, both in regional and global scale. The level of environmental safety and ecological quality of the coal-mining region significantly decreases due to mining operations. In particular, mine waters with solid particles and dissolved chemicals are discharged surface reservoirs. Suspended substances of mine waters, both in solid and dissolved forms, pose a high threat for ecological and chemical balance of natural waters. Due to the ability to adsorb heavy metals they play a significant role in the pollution of nearby water bodies. Chemicals not only change the quality of water bodies, but also pose an increased environmental risk to aquatic organisms and the health of the population. The purpose of the paper is to revise the mine water drainage technological scheme of the coal mine “Stepova” as the subdivision of the Public Joint-Stock Company “DTEK Pavlogradvugillya” (Ukraine) and justify technical considerations concerning implementation of a horizontal settling tank with unique design. It is justified that such mechanical treatment facility with vertical perforated partitions will significantly improve the overall water quality and further additional treatment in the storage pond. The modeling of the mine water purification process for the conditions of the coal mine “Stepova” is carried out due to the investigation of the kinetics of suspended particles precipitation simulated in laboratory conditions. The obtained dependences allow select the most optimal design and technological parameters of the proposed settling tank of advanced design. The values of the expected technological parameters of the proposed settling tank are determined, namely the predicted value of mine water purification efficiency, approximate depth of particles sedimentation in the point of treated water removal from the settling tank, and hydraulic size of suspended solids. It is established that the implementation of the proposed technological scheme of mine water purification will reduce the concentration of suspended solids to the normative concentrations allowed for discharge into surface water bodies.Oleksandr KovrovDaria KulikovaPolish Society of Ecological Engineering (PTIE)articlecoal minemine watersuspended particlessettling tankstorage pondhydraulic size of suspended particleswater purification efficiencyEcologyQH540-549.5ENEcological Engineering & Environmental Technology, Vol 23, Iss 1, Pp 65-75 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	coal mine mine water suspended particles settling tank storage pond hydraulic size of suspended particles water purification efficiency Ecology QH540-549.5
spellingShingle	coal mine mine water suspended particles settling tank storage pond hydraulic size of suspended particles water purification efficiency Ecology QH540-549.5 Oleksandr Kovrov Daria Kulikova Improvement of the Mine Water Purification Efficiency via Modified Settling Tank
description	Coal mining technologies always lead to tremendous environmental pollution of air, water resources, lands and biodiversity, both in regional and global scale. The level of environmental safety and ecological quality of the coal-mining region significantly decreases due to mining operations. In particular, mine waters with solid particles and dissolved chemicals are discharged surface reservoirs. Suspended substances of mine waters, both in solid and dissolved forms, pose a high threat for ecological and chemical balance of natural waters. Due to the ability to adsorb heavy metals they play a significant role in the pollution of nearby water bodies. Chemicals not only change the quality of water bodies, but also pose an increased environmental risk to aquatic organisms and the health of the population. The purpose of the paper is to revise the mine water drainage technological scheme of the coal mine “Stepova” as the subdivision of the Public Joint-Stock Company “DTEK Pavlogradvugillya” (Ukraine) and justify technical considerations concerning implementation of a horizontal settling tank with unique design. It is justified that such mechanical treatment facility with vertical perforated partitions will significantly improve the overall water quality and further additional treatment in the storage pond. The modeling of the mine water purification process for the conditions of the coal mine “Stepova” is carried out due to the investigation of the kinetics of suspended particles precipitation simulated in laboratory conditions. The obtained dependences allow select the most optimal design and technological parameters of the proposed settling tank of advanced design. The values of the expected technological parameters of the proposed settling tank are determined, namely the predicted value of mine water purification efficiency, approximate depth of particles sedimentation in the point of treated water removal from the settling tank, and hydraulic size of suspended solids. It is established that the implementation of the proposed technological scheme of mine water purification will reduce the concentration of suspended solids to the normative concentrations allowed for discharge into surface water bodies.
format	article
author	Oleksandr Kovrov Daria Kulikova
author_facet	Oleksandr Kovrov Daria Kulikova
author_sort	Oleksandr Kovrov
title	Improvement of the Mine Water Purification Efficiency via Modified Settling Tank
title_short	Improvement of the Mine Water Purification Efficiency via Modified Settling Tank
title_full	Improvement of the Mine Water Purification Efficiency via Modified Settling Tank
title_fullStr	Improvement of the Mine Water Purification Efficiency via Modified Settling Tank
title_full_unstemmed	Improvement of the Mine Water Purification Efficiency via Modified Settling Tank
title_sort	improvement of the mine water purification efficiency via modified settling tank
publisher	Polish Society of Ecological Engineering (PTIE)
publishDate	2022
url	https://doaj.org/article/a7805109cc7241dd88aa6008441314fd
work_keys_str_mv	AT oleksandrkovrov improvementoftheminewaterpurificationefficiencyviamodifiedsettlingtank AT dariakulikova improvementoftheminewaterpurificationefficiencyviamodifiedsettlingtank
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Improvement of the Mine Water Purification Efficiency via Modified Settling Tank

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