CHEMICAL CHARACTERISATION OF ACID MINE DRAINAGE FROM VALEA ȘESEI TAILING DAM (NW OF ROMANIA) AND ITS IMPACT ON SURFACE WATER QUALITY

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dc.coverageSTUDIA UBB AMBIENTUM, LXVI, 2021, 1-2, pp. 63-74en-US
dc.creatorTOMUȘ, Diana Iuliana
dc.creatorROBA, Carmen
dc.creatorROŞU, Cristina
dc.date2021-12-30
dc.date.accessioned2026-01-02T08:42:13Z
dc.descriptionThe acid mine drainage (AMD) can be a major source of water and soil pollution. To evaluate the chemical composition of the AMD and its impact on surface waters, a total of 132 water samples, both surface and waste waters, were collected during four field campaigns in November 2018, December 2018, March 2019 and April 2019. There were also collected several samples from the tailing dam material and sediments from the rivers where acidic waters are discharged. The physico-chemical parameters (pH, redox potential, electrical conductivity, total dissolved salts and salinity) were measured by a portable multiparameter (WTW multi350i, Germany), while the dissolved ions (NO2-, NO3-, Br-, F-, Cl-, PO43-, SO42-, Li+, Na+, NH4+, K+, Mg2+ and Ca2+) were analysed by ion chromatography and the metal content (Cu, Zn, Fe, Cr, Cd, Ni, Pb) was determined by atomic absorption spectrometry. Most of the water samples had an acidic pH, with high electrical conductivity values (up to 9,360 µS/cm). The waters had a high level of SO42- (up to 8141.8 mg/l), Fe (up to 1,216.2 mg/l), Cu (up to 71.9 mg/l) and Zn (up to 61.98 mg/l). The tailing dam material was characterised by high levels of Fe (39.87 – 40.72 g/kg), Zn (81.3 – 241.1 mg/kg), Cu (343.5 – 942.3 mg/kg) and Pb (41.4 – 77.1 mg/kg). The analyses indicated the negative impact of AMD discharge in surface waters, which proved to have high levels of SO42- and heavy metals.en-US
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dc.identifierhttps://studia.reviste.ubbcluj.ro/index.php/subbambientum/article/view/1723
dc.identifier10.24193/subbambientum.2021.06
dc.identifier.urihttp://dspace.chem.ubbcluj.ro/handle/20.500.14637/158
dc.languageeng
dc.publisherBabeş-Bolyai University / Cluj University Pressen-US
dc.relationhttps://studia.reviste.ubbcluj.ro/index.php/subbambientum/article/view/1723/1657
dc.rightsCopyright (c) 2022 Studia Universitatis Babeș-Bolyai Ambientumen-US
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0en-US
dc.sourceStudia Universitatis Babeș-Bolyai Ambientum; Volume 66, No. 1-2, December 2021; 63-74en-US
dc.source2065-9490
dc.source1843-3855
dc.source10.24193/subbambientum.2021
dc.subjectacid mine drainage, heavy metals pollution, tailing dam, Valea Șesei.en-US
dc.titleCHEMICAL CHARACTERISATION OF ACID MINE DRAINAGE FROM VALEA ȘESEI TAILING DAM (NW OF ROMANIA) AND ITS IMPACT ON SURFACE WATER QUALITYen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typePeer-reviewed Articleen-US
dc.typetexten-US

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