Related Experiment Video
Updated: Jun 27, 2026

Isolation, Propagation, and Identification of Bacterial Species with Hydrocarbon Metabolizing Properties from Aquatic Habitats
Published on: December 7, 2021
Association between haloacetic acid degradation and heterotrophic bacteria in water distribution systems
Hsin-Hsin Tung1, Yuefeng F Xie
1Graduate Institute of Environmental Engineering, National Taiwan University, 71 Chou-Shan Road, Taipei 10673, Taiwan.
Abstract:
The occurrences of trihalomethanes (THMs), haloacetic acids (HAAs) and heterotrophic bacteria were monitored in five small water systems over a nine-month period to investigate the association between HAA degradation and heterotrophic bacteria populations. The sampling sites were chosen to cover the entire distribution network for each system. An inverse association between heterotrophic bacteria and HAA concentrations was found at some locations where chlorine residuals were around or less than 0.3mgL(-1). At other sample locations, where chlorine residuals were higher (over 0.7mgL(-1)), no HAA reduction was observed. A high heterotrophic bacteria count accompanied with a low chlorine residual could be used as an indicator for HAA degradation in distribution systems.
More Related Videos
Related Concept Videos
Microbial Wastewater Treatment
Microbial Bioremediation of Hydrocarbons
Microbes and Methanogenesis
Microbial Bioremediation of Pesticides
Freshwater Microbial Ecology
Microbial Fermentation

