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Removal of cadmium and chromium from a pretreated wastewater with reverse osmosis. PDF

186 Pages·1992·4.2 MB·en_US
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Preview Removal of cadmium and chromium from a pretreated wastewater with reverse osmosis.

REMOVAL OF CADMIUM AND CHROMIUM FROM A PRETREATED WASTEWATER WITH REVERSE OSMOSIS A Thesis Submitted to the Faculty of Purdue University by Karen Marie Zapp Lieutenartt Civil Engineer Corps United States Navy In Partial Fulfillment of the Requirements for the Degree of Master Of Science In Engineering May 1992 T260621 6.1 II This document is dedicated to Lieutenant Commander Wiz Withers and to Mr. and Mrs. James Zapp who were very supportive and encouraging throughout the author's graduate program. Ill ACKNOWLEDGMENTS The author is sincerely grateful to Dr. Benito J. Marinas for his guidance and tech- nical support during this undertaking. Furthermore, his enthusiasm toward the work was truly motivational. A special thank you is extended to Dr. Ronald F. Wukasch and Dr. Robert B. Jacko for serving as members ofthe exam committee. Candace Carter, fellow graduate student and employee of Naval Air Warfare Center-Aircraft Division-Indianapolis, is deserving of recognition because of her invalu- able assistance in procuring critical elements of the test apparatus. She was also instru- mental in arranging for a portion of the analytical analysis to be performed by NAWC-AD-Indianapolis. The backing received from all fellow graduate students is appreciated but the assistance provided by Gretchen Hein and Brad Blank in the final hours is worthy of mention. Financial support from the Naval Civil Engineering Laboratory (Port Hueneme, CA), is gratefully acknowledged. The author is also indebted to FilmTec Corporation (Minneapolis, MN) for providing the membrane samples and especially to Mr. Tim Berg of NAWC-AD-Indianapolis for performing analytical analyses.

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