Record Display for the EPA National Library Catalog

RECORD NUMBER: 7 OF 21

OLS Field Name OLS Field Data
Main Title Conventional Water Treatment and Direct Filtration: Treatment and Removal of Total Organic Carbon and Trihalomethane Precursors.
Author Edzwald, J. K. ;
CORP Author Massachusetts Univ., Amherst. Dept. of Civil Engineering.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1986
Report Number EPA/600/D-86/192;
Stock Number PB86-241700
Additional Subjects Carbon ; Organic compounds ; Water treatment ; Filtration ; Halogen organic compounds ; Polyelectrolytes ; Humic acids ; Coagulation ; Alums ; Operations ; Water quality ; Methanes
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-241700 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 41p
Abstract
After describing the fundamentals of coagulation of humic substances for alum and cationic polyelectrolytes, field studies of two conventional-type water treatment plants are discussed. THM formation through the plants is examined, and removals of total organic carbon (TOC) and THM are summarized. Plant operation, water quality, and plant design that affect THM formation control and precursor removal are reviewed. Direct filtration with cationic polymers as the sole coagulant is a feasible treatment process for waters of low to moderate TOC and total trihalomethane levels.