Universitat de Lleida
    • English
    • català
    • español
  • English 
    • English
    • català
    • español
  • Login
Repositori Obert UdL
View Item 
  •   Home
  • Recerca
  • Informàtica i Enginyeria Industrial
  • Articles publicats (Informàtica i Enginyeria Industrial)
  • View Item
  •   Home
  • Recerca
  • Informàtica i Enginyeria Industrial
  • Articles publicats (Informàtica i Enginyeria Industrial)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Processing of leather waste: pilot scale studies on chrome shavings. Isolation of potentially valuable protein products and chromium

Thumbnail
View/Open
004331.pdf (292.0Kb)
Sol·licita una còpia
Issue date
1998
Author
Cabeza, Luisa F.
Taylor, M. M.
DiMaio, G. L.
Brown, E. M.
Marmer, W. N.
Carrió, R.
Celma Serra, Pedro
Cot Gores, Jaume
Suggested citation
Cabeza, Luisa F.; Taylor, M. M.; DiMaio, G. L.; Brown, E. M.; Marmer, W. N.; Carrió, R.; ... Cot Gores, Jaume. (1998) . Processing of leather waste: pilot scale studies on chrome shavings. Isolation of potentially valuable protein products and chromium. Waste Management, 1998, núm. 18, p. 211-218. https://doi.org/10.1016/S0956-053X(98)00032-4.
Impact


Web of Science logo    citations in Web of Science

Scopus logo    citations in Scopus

Google Scholar logo  Google Scholar
Share
Export to Mendeley
Metadata
Show full item record
Abstract
Hides come to the tanner as a by-product of the meat industry. The tanning process, in turn, generates much greater quantities of by-products and wastes than leather. One ton of wet salted hides yields only 200 kg of leather but over 600 kg of solid waste, or by- product if a market can be found. In the United States, nearly 60,000 metric tons of chromium-containing solid waste, i.e. chrome shavings, are generated by the leather industry each year, and approximately ten times this amount is generated worldwide. Land application for the disposal of chromium-containing tannery and other leather wastes has been widely practiced during most of the twentieth century, but fewer landfill sites can be found every day and the cost of transportation and disposal increases. Historically, these materials were used in the production of fertilizer or composite boards, but while once the company producing and marketing fertilizer or boards would pay for the waste and its transportation, nowadays, the tanner has to pay for such things. Over several years, we have demonstrated that it is possible to isolate protein products (gelatin and collagen hydrolysate) from chrome shavings by using an alkaline protease under mild conditions. The objective of the present work was to perform pilot plant trials to isolate protein products from chrome shavings, treat and purify the remaining chrome cake and tan hides with the recovered chromium. Because of the high nitrogen content, the isolated collagen hydrolysate has potential use as a fertilizer and in animal feed additives. The gelatin has potential use in cosmetics, adhesives, printing, photography, microencapsulation, films or even as an additive in finishing products for the leather industry.
URI
http://hdl.handle.net/10459.1/47745
DOI
https://doi.org/10.1016/S0956-053X(98)00032-4
Is part of
Waste Management, 1998, núm. 18, p. 211-218
European research projects
Collections
  • Articles publicats (Informàtica i Enginyeria Industrial) [932]

Contact Us | Send Feedback | Legal Notice
© 2022 BiD. Universitat de Lleida
Metadata subjected to 
 

 

Browse

All of the repositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

Statistics

View Usage Statistics

D'interès

Política institucional d'accés obertDiposita les teves publicacionsDiposita dades de recercaSuport a la recerca

Contact Us | Send Feedback | Legal Notice
© 2022 BiD. Universitat de Lleida
Metadata subjected to