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RECORD NUMBER: 103 OF 211

Main Title Hydraulic Studies and Cleaning Evaluations of Ultraviolet Disinfection Units.
Author Kreft, P. ; Scheible, O. K. ; Venosa, A. ;
CORP Author Montgomery (James M.), Inc., Pasadena, CA. ;HydroQual, Inc., Mahwah, NJ.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1986
Report Number EPA-68-03-1821; EPA/600/J-86/298;
Stock Number PB87-174942
Additional Subjects Disinfection ; Ultraviolet lamps ; Cleaning ; Waste water ; Ultraviolet radiation ; Hydraulics ; Evaluation ; Quartz ; Polymers ; Schematic diagrams ; Flow rate ; Ultrasonics ; Fluorohydrocarbons ; Reprints ; Quartz tubes
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NTIS  PB87-174942 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
Abstract Various types of operating ultraviolet disinfection reactor designs were evaluated for hydraulic characteristics and cleaning requirements. The fluorocarbon polymer tube designs promote plug-flow behavior because of their relatively high length-to-diameter ratio. Hydraulic evaluations of two different types of relatively current quartz tube designs demonstrated significant short-circuiting. Historically, quartz tube units have been designed with some form of accessory cleaning device to reduce fouling. The accessory cleaning devices, either mechanical wipers or ultrasonics, were marginally effective and periodic chemical cleaning is also required.
Supplementary Notes Pub. in Jnl. of Water Pollution Control Federation, v58 n12 p1129-1137 Dec 86. Prepared in cooperation with HydroQual, Inc., Mahwah, NJ. Sponsored by Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
NTIS Title Notes Journal article.
Title Annotations Reprint: Hydraulic Studies and Cleaning Evaluations of Ultraviolet Disinfection Units.
PUB Date Free Form c1986
Category Codes 68D
NTIS Prices PC A02/MF A01
Primary Description 600/14
Document Type NT
Cataloging Source NTIS/MT
Control Number 718319799
Origin NTIS
Type CAT