Title page for ETD etd-03122013-040228

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
  • Wood-pulp industry
Date of Defense 1986-05-27
Availability restricted

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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