Open AccessEvaluation of military field-water quality: Volume 7, Performance evaluation of the 600-gph reverse osmosis water purification unit (ROWPU): Reverse osmosis (RO) components
Author(s) -
Benito J. Mariñas,
Z. Ungun,
Robert E. Selleck
Publication year - 1986
Language(s) - English
Resource type - Reports
DOI - 10.2172/6584839
Subject(s) - reverse osmosis , process engineering , seawater , osmosis , reverse osmosis plant , environmental science , process (computing) , environmental engineering , work (physics) , water quality , water treatment , engineering , waste management , computer science , membrane , chemistry , mechanical engineering , geology , ecology , biochemistry , oceanography , biology , operating system
The primary purpose of this work is to ascertain whether the performance of the current 600-gph reverse osmosis water-purification unit (ROWPU) is adequate to meet the water-quality standards recommended in Volume 4 of this study. A secondary objective is to review the design of the treatment units used in the ROWPU, as well as the prescribed mode of operation, and to make constructive recommendations. Reverse osmosis (hyperfiltration) is a complicated water-treatment process that is not described easily with a few process parameters. Furthermore, published literature on the type of membrane currently used in the ROWPU was scarce. Therefore, we required a mathematical model that could be used to extrapolate existing information to different operating conditions. It was successful for seawater and single-salt solutions, but it proved to be unsuccessful for just any mix of salts that might be encountered in nature. 99 refs., 69 figs., 60 tabs.
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