Leachability of heavy metals from stabilized/solidified mine tailing in Russia

Mining activities are usually producing significant volume of solid waste, which is commonly known as tailing. In most of the cases, tailing contains hazardous pollutants like heavy metals that are posing risks for environment and public health. Therefore, proper management of tailing to minimize th...

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मुख्य लेखकों:	Begday, I. V., Бегдай, И. В., Shkarlet, K. Y., Шкарлет, К. Ю., Kharin, K. V., Харин, К. В., Bluzhina, A. S., Блужина, А. С., Likhovid, A. A., Лиховид, А. А.
स्वरूप:	Статья
भाषा:	English
प्रकाशित:	ACADEMIC PUBLICATION COUNCIL 2019
विषय:	Portland cement Stabilization and solidification Heavy metals Immobility percentage Leaching test North Caucasus Russia Tailing
ऑनलाइन पहुंच:	http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=11&SID=D6q7XYU5ASDt7dprzT3&page=1&doc=1 https://dspace.ncfu.ru/handle/20.500.12258/6895
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spelling	ir-20.500.12258-68952020-02-14T14:04:41Z Leachability of heavy metals from stabilized/solidified mine tailing in Russia Begday, I. V. Бегдай, И. В. Shkarlet, K. Y. Шкарлет, К. Ю. Kharin, K. V. Харин, К. В. Bluzhina, A. S. Блужина, А. С. Likhovid, A. A. Лиховид, А. А. Portland cement Stabilization and solidification Heavy metals Immobility percentage Leaching test North Caucasus Russia Tailing Mining activities are usually producing significant volume of solid waste, which is commonly known as tailing. In most of the cases, tailing contains hazardous pollutants like heavy metals that are posing risks for environment and public health. Therefore, proper management of tailing to minimize their risks is of great importance. In this study, the leachability of metals (Cd, Pb, Zn, Ni, Cu, Co, Fe, and Mn) from mine tailings was investigated. The mine tailings used for this study have been accumulated for several years at two abandoned Urupsky and Elbrosky tailing dumps in North Caucasus, Russia. The mineralogical composition and metals concentration in the tailing were determined using X-Ray diffraction (XRD) and chemical extraction analysis. Solidification of the tailing from Urupsky and Elbrosky sites was performed using ordinary Portland cement in a ratio of 1: 3 cement to tailing. The solidified masses were cured in water for different periods of time (0, 14, 21, and 28 days) after which they were subjected to dynamic batch leaching test. Regardless of the initial pH value at the beginning of the leaching test, due to the alkaline nature of cement, the leachate pH has been increased immediately to alkaline range (above 11) for all leachates. The study revealed that immobility percentage (IP) of the metals ranged from as low as 2% for the Manganese in Elbrosky tailing to as high as 95.8% for Cadmium from Urupsky tailing. Despite this, all heavy metals concentrations in the leachate generated at the end of curing period of 28 days were either complying with Russian or USEPA Standards for fresh surface water. This indicates that solidification of tailing using cement is an efficient technology for decreasing the mobility of the studied heavy metals from both tailing sites 2019-09-03T14:40:32Z 2019-09-03T14:40:32Z 2019 Статья Abu Qdais, H; Begday, IV; Shkarlet, KY; Harin, KV; Bluzhina, AS; Likhovid, AA. Leachability of heavy metals from stabilized/solidified mine tailing in Russia // JOURNAL OF ENGINEERING RESEARCH. - 2019. - Том: 7. - Выпуск: 3. - Стр.: 62-75 http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=11&SID=D6q7XYU5ASDt7dprzT3&page=1&doc=1 http://hdl.handle.net/20.500.12258/6895 en JOURNAL OF ENGINEERING RESEARCH application/pdf application/pdf ACADEMIC PUBLICATION COUNCIL
institution	СКФУ
collection	Репозиторий
language	English
topic	Portland cement Stabilization and solidification Heavy metals Immobility percentage Leaching test North Caucasus Russia Tailing
spellingShingle	Portland cement Stabilization and solidification Heavy metals Immobility percentage Leaching test North Caucasus Russia Tailing Begday, I. V. Бегдай, И. В. Shkarlet, K. Y. Шкарлет, К. Ю. Kharin, K. V. Харин, К. В. Bluzhina, A. S. Блужина, А. С. Likhovid, A. A. Лиховид, А. А. Leachability of heavy metals from stabilized/solidified mine tailing in Russia
description	Mining activities are usually producing significant volume of solid waste, which is commonly known as tailing. In most of the cases, tailing contains hazardous pollutants like heavy metals that are posing risks for environment and public health. Therefore, proper management of tailing to minimize their risks is of great importance. In this study, the leachability of metals (Cd, Pb, Zn, Ni, Cu, Co, Fe, and Mn) from mine tailings was investigated. The mine tailings used for this study have been accumulated for several years at two abandoned Urupsky and Elbrosky tailing dumps in North Caucasus, Russia. The mineralogical composition and metals concentration in the tailing were determined using X-Ray diffraction (XRD) and chemical extraction analysis. Solidification of the tailing from Urupsky and Elbrosky sites was performed using ordinary Portland cement in a ratio of 1: 3 cement to tailing. The solidified masses were cured in water for different periods of time (0, 14, 21, and 28 days) after which they were subjected to dynamic batch leaching test. Regardless of the initial pH value at the beginning of the leaching test, due to the alkaline nature of cement, the leachate pH has been increased immediately to alkaline range (above 11) for all leachates. The study revealed that immobility percentage (IP) of the metals ranged from as low as 2% for the Manganese in Elbrosky tailing to as high as 95.8% for Cadmium from Urupsky tailing. Despite this, all heavy metals concentrations in the leachate generated at the end of curing period of 28 days were either complying with Russian or USEPA Standards for fresh surface water. This indicates that solidification of tailing using cement is an efficient technology for decreasing the mobility of the studied heavy metals from both tailing sites
format	Статья
author	Begday, I. V. Бегдай, И. В. Shkarlet, K. Y. Шкарлет, К. Ю. Kharin, K. V. Харин, К. В. Bluzhina, A. S. Блужина, А. С. Likhovid, A. A. Лиховид, А. А.
author_facet	Begday, I. V. Бегдай, И. В. Shkarlet, K. Y. Шкарлет, К. Ю. Kharin, K. V. Харин, К. В. Bluzhina, A. S. Блужина, А. С. Likhovid, A. A. Лиховид, А. А.
author_sort	Begday, I. V.
title	Leachability of heavy metals from stabilized/solidified mine tailing in Russia
title_short	Leachability of heavy metals from stabilized/solidified mine tailing in Russia
title_full	Leachability of heavy metals from stabilized/solidified mine tailing in Russia
title_fullStr	Leachability of heavy metals from stabilized/solidified mine tailing in Russia
title_full_unstemmed	Leachability of heavy metals from stabilized/solidified mine tailing in Russia
title_sort	leachability of heavy metals from stabilized/solidified mine tailing in russia
publisher	ACADEMIC PUBLICATION COUNCIL
publishDate	2019
url	http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=11&SID=D6q7XYU5ASDt7dprzT3&page=1&doc=1 https://dspace.ncfu.ru/handle/20.500.12258/6895
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Leachability of heavy metals from stabilized/solidified mine tailing in Russia

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