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COLOR REMOVAL FROM NSSC MILL EFFLUENTS BY ULTRAFILTRATION
Citation:
Parker, P., M. Doshi, AND H. Dugal. COLOR REMOVAL FROM NSSC MILL EFFLUENTS BY ULTRAFILTRATION. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-79/036.
Description:
The feasibility of ultrafiltration in removing color from NSSC effluent was studied. The diluted shower water from the nearest NSSC mill of Green Bay Packaging, Inc. was used in all experiments. Tubular membrane modules with membranes (polysulfone, molecular weight cut off point between 6,000 and 20,000) on outside of tubes, were used in these experiments. Results show that ultrafiltration is feasible but expensive. Color rejection was about 90%, and flux rate only about 25 l/sq m hr. Reasons for low color removal efficiency by lime treatment were examined. Our preliminary results indicate that carbohydrates are not responsible for the low efficiency.