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 Keywords
- Paper industry.
Date of Defense 1988-09-05 Availability restricted AbstractThis 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.
Filename Size Approximate Download Time (Hours:Minutes:Seconds)
28.8 Modem 56K Modem ISDN (64 Kb) ISDN (128 Kb) Higher-speed Access LD5655.V855_1988.S393.pdf 6.28 Mb 00:29:03 00:14:56 00:13:04 00:06:32 00:00:33next to an author's name indicates that all files or directories associated with their ETD are accessible from the Virginia Tech campus network only.
If you have questions or technical problems, please Contact DLA.