Evaluation of Enhanced Coagulation for DBP Control

by Richard J. Miltner, USEPA, Cincinnati, United States,
Sheila A. Nolan, (S.M.ASCE), USEPA, Cincinnati, United States,
Marcus J. Dryfuse, (S.M.ASCE), USEPA, Cincinnati, United States,
R. Scott Summers, (M.ASCE), USEPA, Cincinnati, United States,

Document Type: Proceeding Paper

Part of: Critical Issues in Water and Wastewater Treatment


The paper presents a pilot scale study conducted to examine the control of Disinfection By-Product (DBP) precursors by conventional and enhanced coagulation. The objectives of the study were to assess: (1) the usefulness of total organic carbon (TOC) as a surrogate for DBP precursors; (2) the performance scale-up from jar testing to the pilot scale; (3) the differences in resulting DBP formation in conventional and enhanced plants; and (4) the differences in filter run times and particulate control in conventional and enhanced plants. Conventional and enhanced coagulation were compared using two parallel pilot-scale treatment plants employing rapid mix, floculation, and sedimentation.

Subject Headings: Water treatment plants | Coagulation | Water treatment | Water pollution | Particle pollution | Chemical treatment | Carbon compounds

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