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INVESTIGATIONS OF HEAT TREATMENT FOR PAPER MILL SLUDGE CONDITIONING
Citation:
Marshall, D., F. Fiery, AND R. Blosser. INVESTIGATIONS OF HEAT TREATMENT FOR PAPER MILL SLUDGE CONDITIONING. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-78/015.
Description:
The capability of oxidative and nonoxidative heat treatment processes for the conditioning of hydrous sludges originating in pulp and paper industry manufacturing or wastewater treatment operations was defined on the basis of laboratory scale investigation. Sludges employed in the study included (a) alum water treatment sludge, (b) groundwood fines, (c) alum-coagulated biological solids and (d) waste activated sludge. The benefit of acid assisted oxidative conditioning of the latter was also assessed. Results were related in terms of improved filtration properties, the extent and significance of solids solubilization and the resulting impact on filtrate quality.