| 摘要 |
<p>TANNERY PROCESS WITH EFFLUENT RECYCLING A recycling process (100) for achieving near-zero emissions of tannery effluent wherein effluent recycling is carried out independently in soaking (1), liming (2), re-liming (3), de-liming bating (4), pickling chrome tanning (5), re-tanning (6), neutralizing (7), and dyeing procedures (8). The effluents in the above procedures can be recycled in each step. This process can reduce effluent discharge and help solve the problem of tanning pollution. The process can also improve the quality of the finished leather, effectively decrease loose grain rate and increase compactness and fullness of the finished product. The project can reduce chemical material consumption by 15% - 55%. For example, the consumption of chromium powder can be reduced up to 65%. Consumption of other chemical materials can be reduced by more than 90%, while certain chemical materials can be essentially completely conserved. 8628510_1:DOM</p> |
