Type of Document Master's Thesis Author Bhinge, Deepak URN etd-03122013-040228 Title Color removal from pulp and paper wastes by coagulation Degree Master of Science Department Environmental Engineering Advisory Committee
Advisor Name Title Knocke, William R. Committee Chair Boardman, Gregory D. Committee Member Novak, John T. Committee Member Keywords
- Wood-pulp industry
Date of Defense 1986-05-27 Availability restricted Abstract
Coagulation studies were conducted to determine an appropriate treatment approach to remove color and organic carbon from the pulp and paper wastes from the Union Camp Corporation, Franklin, Va.
Based on a preliminary analysis of the data collected during this research, either alum or ferric chloride may be used to remove color from pulp and paper wastes. An effluent with final residual color less than 5 color units can be generated using PAC treatment after flocculating certain waste streams with alum or ferric chloride. Higher molecular weight organics (above 5K mass units) showed a near complete removal by coagulation.
It is expected that alum coagulation would involve a lesser cost in pH adjustment as compared to ferric chloride coagulation. Alum sludge dewatered and thickened more rapidly than the iron sludge; however, after mechanical dewatering, the alum cake had a slightly greater moisture content than the sludge produced after ferric chloride coagulation.
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