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Project #208

Modifications to the Slow Sand Filtration Process for Improved Removals of Trihalomethane Precursors

$101,614
Completed
Principal Investigator
M. Robin
Collins
Research Manager
Deborah R Brink
Contractor
University of New Hampshire
Disinfection Byproducts (DBPs)
Microbes & Pathogens
Constituents of Emerging Concern (CECs)
Treatment
Water Quality
Final Report

Abstract

Establishes, by pilot-plant testing of media characteristics and pretreatment schemes and full-scale sampling, the optimal capabilities of slow sand filtration to remove THM precursors in small systems. Also characterizes removed organic matter and microbial populations, determines the process's cost-effectiveness for varying raw water conditions and design parameters, and compares THM-removal performance of slow sand filtration with that of the rapid-rate process. Published in 1989.