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OLS Field Name OLS Field Data
Main Title Renovation of Municipal Wastewater by Reverse Osmosis.
Author Smit, John M. ; Mass, Arthur N. ; Miel, Robert P. ;
CORP Author Environmental Protection Agency, Cincinnati, Ohio. Advanced Waste Treatment Research Lab.
Year Published 1970
Report Number 07756,; 17040-05/70-May-70
Stock Number PB-199 067
Additional Subjects ( Sewage treatment ; Water reclamation) ; ( Desalting ; Osmosis) ; ( Demineralizing ; Osmosis) ; Membranes ; Cellulose acetate ; Tests ; Water treatment ; Particles ; Cost estimates ; Reverse osmosis desalination
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-199 067 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 66p
Abstract The three major configurations of reverse osmosis units include spiral wound units, tabular units, and plate and frame units. Tests were conducted on prototype units employing all three configurations, and the membranes were found capable of rejecting 93 to 95% of TDS, 90 to 99% of phosphates, 80 to 90% of ammonia nitrogen, 60 to 70% of nitrate nitrogen, 99 to 100% of particulate matter, 90 to 95% of TOC and greater than 90% of COD. Many of the problems discovered stemmed from the use of prototype units which had not been thoroughly tested and were subjected to repeated mechanical failures. Fouling problems have been partially alleviated by periodically depressurizing the membranes and washing them with enzyme detergents. The success of this method is attributed to protein hydrolysis of the slime layer which coats the membrane. Increasing population has dictated the recycling of a much larger portion of the nation's water. Each time it is re-used, the water picks up greater amounts of dissolved solids. These solids will eventually have to be removed to preserve the potability of drinking water. Also, increasing advances in membrane materials have steadily decreased the cost of reverse osmosis to the point that a reverse osmosis system coupled with primary and sand filtration only has an estimated cost of 35.4 cents/1000 gallons. (WRSIC abstract)
Supplementary Notes Paper copy available from GPO $0.65 as EP2.10:17040-05/70.
NTIS Title Notes Water pollution control research series.
PUB Date Free Form May 70,
Category Codes 13B; 68D
NTIS Prices PC-GPO/MF A01-NTIS
Document Type NT
Cataloging Source NTIS/MT
Control Number 326518193
Origin NTIS
Type CAT