Title page for ETD etd-06102012-040251

Type of Document Master's Thesis
Author Seyffert, Hans J
URN etd-06102012-040251
Title Use of polymers and a surfactant in the treatment of Kraft process wastewater
Degree Master of Science
Department Environmental Sciences and Engineering
Advisory Committee
Advisor Name Title
Boardman, Gregory D. Committee Chair
Novak, John T. Committee Member
Randall, Clifford W. Committee Member
  • Paper industry.
Date of Defense 1988-09-05
Availability restricted
This study-investigated the use of cationic polymers,

and a surfactant, EHDABr, in the color removal treatment of

Kraft pulp and paper wastewater. Four polymers were evaluated for their color removal performance by jar test

procedures. The polymers removed between 77 and 87% of the

wastewater color. The affect of pH upon polymer performance

varied with the polymer tested. Powdered activated carbon

addition improved the performance of the polymers.

The color removal ability of EHDABr was evaluated by

jar test, and by continuous-flow foam flotation.. EHDABr

removed 77% of the wastewater color by jar test and was

relatively unaffected by pH variation. The addition of

powdered activated carbon improved EHDABr performance in jar tests.

EHDABr removed 90% of the wastewater color by continuous-flow, foam flotation. Color bodies were precipitated in the foaming system before being removed by flotation. Total suspended solids removal improved with increasing column detention time.

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