Project #5140

The Impact of Pre-Chlorination and GAC Treatment on DBP Formation and Overall Toxicity in Drinking Water

In Progress
Principal Investigator
Research Manager
Hyunyoung Jang, PhD
Carollo Engineers
Disinfection Byproducts (DBPs)
Advanced Treatment
Source & Receiving Waters


This project will investigate the impact of granular activated carbon (GAC) with and without pre-chlorination on disinfection byproduct (DBP) formation and the resulting toxicity of drinking water using appropriate bioassays. A systematic evaluation of source water bromide and iodide concentrations, disinfection pH, and degree of GAC breakthrough will be conducted at the pilot-scale. In addition, DBP formation and toxicity will be analyzed at full-scale plants that use (1) GAC to treat groundwater, surface water, and potable reuse water; (2) ozone and biological filtration to treat surface water; and (3) aeration to strip volatile DBPs.

An open-access journal article with project findings has been published in Environmental Science & Technology.