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RECORD NUMBER: 12 OF 49

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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	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

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.

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