|
Title:
|
Minimization of the environmental impact of chrome tanning: a new process reusing the tanning floats
|
|
Author:
|
Morera Prat, Josep M.; Bartolí, Ester; Chico, Roberto; Solé Cutrona, Cristian; Cabeza, Luisa F.
|
|
Notes:
|
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. |
|
Subject(s):
|
-Tanning industry
-Chrome tanning
-Tanning wastewater |
|
Rights:
|
(c) Elsevier, 2011
info:eu-repo/semantics/restrictedAccess |
|
Document type:
|
article
publishedVersion |
|
Published by:
|
Elsevier
|
|
Share:
|
|
