Potential Danger of Chromium Tanned Waste

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28140%2F07%3A63505903" target="_blank" >RIV/70883521:28140/07:63505903 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Potential Danger of Chromium Tanned Waste
Original language description
This contribution deals with the waste from the processes in which raw hide is transformed into leather, as well as with the waste generated during further leather processing and the final waste of leather industry, the worn-out shoes. All this waste, ifdeposited in the open-air dumps, represents a potential threat to human health, because it contains trivalent chromium (Cr III), which can oxidise to its hexavalent form (Cr VI) under various conditions. The authors discuss the possibilities of spontaneous transformation of Cr III into Cr VI and propose several technologies of the waste treatment to eliminate the health and environmental risks. Chrome-tanned waste, especially the chrome shavings, is processed with the use of modified enzymatic hydrolysis. The chromium cake obtained after filtration has proved to serve as a suitable precipitator of chromium ions from chromium containing spent liquor. Simultaneously, the chromium cake is enriched by those chromium ions and can be re-used
Czech name
xxx
Czech description
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Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
The 5th WSEAS Conference on Heat Transfer, Thermal Engineering and Environment HTE´07
ISBN
978-960-6766-02-2
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
137-141
Publisher name
WSEAS World Science and Engineering Academy and Science
Place of publication
Atény
Event location
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Event date
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Type of event by nationality
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UT code for WoS article
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