Cleaner Chromium Tanning Method - Closed Pickle Tan Loop System
[Submitted on : 13 May 2007]
An Indian institute is offering technology of cleaner chromium tanning method, closed pickle tan loop system. The technology involves continuous recycling of spent liquors from a suitably standardized less-chrome, high exhaustion chrome tanning in pickling such that there is no discharge of exhaust liquors containing chrome tanning processes, preventing pollution due to these substances on the one hand and avoiding material loss on the other. Compared to conventional chrome tanning process, this new pickle-tan closed loop system ensures near zero discharge of potential pollutants such as chro...more
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