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OLS Field Name OLS Field Data
Main Title Control of Disinfection By-Products and Biodegradable Organic Matter through Biological Treatment.
Author Shukairy, H. M. ; Miltner, R. J. ; Summers., R. S. ;
CORP Author Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. ;Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.
Publisher c1993
Year Published 1993
Report Number EPA/600/J-94/146;
Stock Number PB94-157310
Additional Subjects Drinking water ; Disinfection ; Water treatment ; Ozonization ; Reprint ; Biodeterioration ; Chlorination ; Byproducts ; Dosage ; Ohio River ; Aldehydes ; Acetaldehyde ; Formaldehyde ; Glyoxal ; Formation tests ; Organic halogen compounds ; Pilot plants ; Foreign technology ; AOC(Assimilable organic carbon) ; TOX(Total organic halogen) ; BDOC(Biodegradable dissolved organic carbon) ; TTHMs(Total trihalomethanes) ; THAAs(Total haloacetic acids)
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NTIS  PB94-157310 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/01/1994
Collation 17p
Abstract
The optimal use of ozonation as a pretreatment process prior to biological treatment of Ohio River water was investigated at both the bench (batch) and pilot-plant (continuous flow) scale. The study focused on disinfection byproducts (DBPs) and DBP precursor compounds and on the production of biologically stable water. Biotreatment was achieved using a bench-scale fixed-film reactor with sand acclimated to the raw Ohio River water. Ozonation was found to create a number of aldehydes, in particular formaldehyde, methyl glyoxal, glyoxal and acetaldehyde. With the exception of formaldehyde, a plateau in the aldehyde yield occurred at an ozone to total organic carbon (O3/TOC) ratio of 0,7 mg/mg, while formaldehyde increased with increasing ozone dose. After biotreatment, the concentration of aldehydes were below 1 microgram. Both ozonation and biotreatment were found to decrease the chlorine demand by up to 75% for ozonation and 55% for biotreatment. (Copyright (c) Revue Des Sciences De L'eau, 1992.)