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RECORD NUMBER: 25 OF 45

Main Title Ozonation and biological stability of water in an operating water treatment plant. microfiche /
Author Reasoner, D. J.; Rice, E. W.; Fung, L. C.
CORP Author Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. ;Hackensack Water Co., Haworth, NJ.
Publisher US Environmental Protection Agency, Rish Reduction Engineering Laboratory
Place Published Cincinnati, OH.,
Year Published 1990
Report Number EPA/600/D-90/228
Stock Number PB91-162438
OCLC Number 45660102
Subjects Water treatment plants; Ozonation; Potable water; Biological effects; Water pollution; Water quality; Bioassay; Physical chemical treatment; Flocculation; Filtration; Chlorination; Disinfection; Aquatic microbiology; Biodeterioration; Halomethanes; Bacteria; Reprints
Subject Added Ent Water--Purification--Ozonization; Water--Purification--Biological treatment; Biodegradation
Holdings
Library   Call Number Additional Info Location Date Modified
ERBD PB91-162438 NERL/ESD-LV Library/Las Vegas,NV 01/13/2001
NTIS PB91-162438 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 22 p., : ill. ; 29 cm.
Abstract Ozonation of drinking water may adversely affect the biological stability of the finished water. The study was designed to assess the effect of ozone as a preoxidant on the nutrient status of water treated in a full-scale water treatment plant. The study was conducted over a ten week period with analyses performed on a weekly basis. The Haworth Water Treatment Plant is a direct filtration plant utilizing ozonation, alum and cationic polymer flocculation, flotation-skimming, and dual media (anthracite-sand) filtration. Chlorine is added just prior to the filtration process to maintain a residual in the filter effluent. Chlorine and ammonia are added after filtration to produce a chloramine residual in the finished water. Samples collected were the raw source water, water from the ozone contactor, and the finished product water collected at the entry point of the distribution system. Standard water quality parameters analyzed included total coliform bacteria, heterotrophic place count bacteria, total organic carbon (TOC), pH, turbidity, hardness, alkalinity, specific conductance, sulfate, nitrate and chloride. Biological stability of the water was determined by the assimilable organic carbon (AOC) bioassay using Pseudomonas fluorescens strain P-17 and Spirillum strain NOX, and by the coliform growth response (CGR) bioassay with Enterobacter cloacae and Escherichia coli as the bioassay organisms.
Notes "EPA 600/D-90/228"
Supplementary Notes Pub. in Proceedings of the American Water Works Association, Water Quality Conference, San Diego, CA., November 1990. Prepared in cooperation with Hackensack Water Co., Haworth, NJ.
PUB Date Free Form 1990.
NTIS Prices PC A03/MF A01
BIB Level m
OCLC Time Stamp 20010104165328
Cataloging Source OCLC/T
Language eng
Origin OCLC
Type MERGE
OCLC Rec Leader 00939nam 2200241Ka 45020