Minimization of the environmental impact of chrome tanning: a new process reusing the tanning floats
MetadataShow full item record
A chrome tanning process which allows the reuse of tanning floats has been developed. The most commonly used chromium salts were replaced by highly masked and basified ones. This substitution eliminates basification operation and prevents pH change and the considerable neutral salts concentration increase in the tanning float. Consequently, tanning float can be reused several times. An optimum chromium salt concentration in the tanning float between 10% and 12.5% has been determined. It has been shown that the number of times the tanning float can be reused depends on the quality of the leather grain to be manufactured. In the best case, a saving of 18 L of water per kilogram of tanned leather is calculated. This means savings of 90% of water normally used.
Is part ofJournal of Cleaner Production, 2011, vol. 19, núm. 17-18, p. 2128-2132
European research projects
Showing items related by title, author, creator and subject.
Minimization of the environmental impact of chrome tanning: A new process with high chrome exhaustion Morera Prat, Josep M.; Bacardit i Dalmases, Anna; Ollé i Otero, Lluís; Bartolí, Esther; Borràs Fillat, Maria Dolors (Elsevier, 2007-11)In all tanning technology operations wastes are generated. These reach the environment as residual waters, solid and liquid waste as well as atmospheric emissions and odours. This study tests an alternative method to ...
Morera Prat, Josep M.; Bacardit i Dalmases, Anna; Ollé i Otero, Lluís; Bartolí, Esther; Borràs Fillat, Maria Dolors (Elsevier, 2008-08)This study tests an alternative method to the traditional unhairing method used during the process of tanning the hides. The new method is based on the substitution of sodium sulfide by hydrogen peroxide as an unhairing ...
Evaluation of the environmental impact of experimental buildings with different constructive systems using Material Flow Analysis and Life Cycle Assessment Rincón, Lídia; Castell, Albert; Pérez Luque, Gabriel; Solé Cutrona, Cristian; Boer, Dieter; Cabeza, Luisa F. (Elsevier, 2013)Sustainability of building construction systems depends on their material and energy consumption, and the consequent environmental impact. Thus, the evaluation of their sustainability requires a wide analysis that includes ...