Abstract
Acid mine drainage (AMD) and fly ash from thermal power plants both pose substantial environmental problems in India. Fly ash from the Talcher super thermal power plant was converted into zeolite and used in a column to treat AMD from the abandoned Gorbi opencast mines (Singrauli coalfields, NCL). The pH of the mine water increased, and 100 % of the total hardness, Ca hardness, Mg hardness, Mn, Zn, Pb, Cd, Ni, and acidity were removed, along with 99 % of the Fe and 90 % of the Cu.
Zusammenfassung
Sowohl saure Grubenwässer als auch Flugaschen aus Wärmekraftwerken stellen in Indien ein erhebliches Umweltproblem dar. Flugasche des Talcher Großkraftwerkes wurde in Zeolite umgewandelt und in einer Säule für die Behandlung von saurem Grubenwasser aus den stillgelegten Gorbi Tagebauen (Singrauli Kohlefelder, NCL) benutzt. Der pH-Wert des Grubenwassers stieg und 100 % Gesamthärte, Ca- und Mg-Härte, Mn, Zn, Pb, Cd, Ni und Azidität sowie 99 % Fe und 90 % Cu wurden beseitigt.
Resumen
El drenaje ácido de minas (AMD) y las cenizas volantes provenientes de centrales térmicas, plantean serios problemas ambientales en India. Las cenizas volantes de la planta Talcher fueron convertidas en zeolitas y usadas en una columna para tratar AMD proveniente de las minas a cielo abierto Gorbi (campos de carbon Singrauli, NCL), abandonadas hace tiempo. El pH del agua de la mina se incrementó y el 100 % de la dureza total, dureza en Ca, dureza en Mg, Mn, Zn, Pb, Cd, Ni y acidez fue removida, además del 99 % del Fe y 90 % del Cu.
抽象
火电厂酸性矿山废水(AMD)和粉煤灰都将引发印度严重的环境问题。本文利用由Talcher超级电厂粉煤灰合成的沸石作为淋滤柱填料,处理弃Gorbi露天矿(NCL公司辛格劳利煤田)的酸性矿山废水。经处理,矿山废水pH值提高,总硬度、Ca硬度、Mg硬度、锰(Mn)、锌(Zn)、铅(Pb)、镉(Cd)、镍(Ni)及酸度的去除率达100 %,铁(Fe)和铜(Cu)的去除率分别达99 %和90 %。
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Acknowledgments
The authors are grateful to the Ministry of Coal, Government of India for funding the Grant-in-aid project on AMD treatment. The authors are also grateful to Dr. Amalendu Sinha, Director of the Central Institute of Mining and Fuel Research Institute, Dhanbad, India for the support provided during the investigation period.
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Prasad, B., Kumar, H. Treatment of Acid Mine Drainage Using a Fly Ash Zeolite Column. Mine Water Environ 35, 553–557 (2016). https://doi.org/10.1007/s10230-015-0373-1
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DOI: https://doi.org/10.1007/s10230-015-0373-1