CONDUCTOMETRIC TESTS AND TOTAL CHROMIUM LEACHABILITY IN AQUEOUS SOLUTION, FROM TANNED LEATHER WASTE

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dc.coverageSTUDIA UBB AMBIENTUM, Volume 65 (LXV), No. 1, January-June 2020, pp. 59-73, DOI: 10.24193/subbambientum.2020.1.04en-US
dc.creatorPOPIȚA, Gabriela-Emilia
dc.creatorMANCIULA, Dorin
dc.creatorPOPOVICI, Antoanela
dc.creatorROȘU, Cristina
dc.date2020-06-30
dc.date.accessioned2026-01-02T08:41:46Z
dc.descriptionTanning is the most important operation in leather processing, which turned the leather into a non-putrefying material. Tanning may be carried out with chromium salts (III) or with a variety of other tanning agents. In present days, tanning with chromium salts (III) is the most widely used technique in industrial processing of leather, almost 90 % of leather goods being processed by this method. Taking into account the fact that the wastes from the leather and fur industry are framed by Commission Decision 532/2000 under code 04 01 08 (non hazardous), this study aim’s to analyze the leachability of total chromium from tanned and dyed leather waste originated from leather processing industries, in order to establish the environmental risks of them. Leachability tests, conductometric tests and determination of the refractive index were carried for three types of tanned leather waste (G-gray, Bn-brown, Bk-black), at different temperatures. The results shown that the values for the total chromium in leachate were higher than the maximum allowed concentration for the hazardous waste (MAC = 70 mg/kg). The leachability of total chromium increased at low temperatures (5-13°C) and at high temperatures (40-60°C). In Romania an important amount of tanned leather waste reaches the municipal landfills. These results indicate that the leather waste can be disposed only in special landfills for hazardous waste.en-US
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dc.identifierhttps://studia.reviste.ubbcluj.ro/index.php/subbambientum/article/view/10
dc.identifier10.24193/subbambientum.2020.1.04
dc.identifier.urihttp://dspace.chem.ubbcluj.ro/handle/20.500.14637/106
dc.languageeng
dc.publisherBabeş-Bolyai University / Cluj University Pressen-US
dc.relationhttps://studia.reviste.ubbcluj.ro/index.php/subbambientum/article/view/10/10
dc.rightsCopyright (c) 2020 Studia Universitatis Babeș-Bolyai Ambientumen-US
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0en-US
dc.sourceStudia Universitatis Babeș-Bolyai Ambientum; Volume 65, No. 1, June 2020; 59-73en-US
dc.source2065-9490
dc.source1843-3855
dc.source10.24193/subbambientum.2020.1
dc.subjectchromium, leather, waste, leachate, conductometric tests.en-US
dc.titleCONDUCTOMETRIC TESTS AND TOTAL CHROMIUM LEACHABILITY IN AQUEOUS SOLUTION, FROM TANNED LEATHER WASTEen-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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