Title:
Microbial Ecology of Point-of-Use Drinking Water Filters
Microbial Ecology of Point-of-Use Drinking Water Filters
Time:
12/07 (Sat.) 5 pm PST, 6 pm MST, 7 pm CST, 8 pm EST
12/08 (Sun.) 9 am Taiwan
12/07 (Sat.) 5 pm PST, 6 pm MST, 7 pm CST, 8 pm EST
12/08 (Sun.) 9 am Taiwan
Keywords:
Environmental Engineering, Environmental microbiology and toxicology, Drinking water microbiome, Pseudomonas aeruginosa, E. coli
Environmental Engineering, Environmental microbiology and toxicology, Drinking water microbiome, Pseudomonas aeruginosa, E. coli
Abstract:
Commercial activated carbon block (ACB) point-of-use (PoU) drinking water filters are widely used to remove chemicals of concern from tap water. ACB PoU filters, however, are an incubator of bacteria because they remove disinfectant residual and adsorb organic compounds that can serve as bacterial substrates. Bacterial growth in ACB PoU filters raises questions about whether waterborne bacteria that pose health risks can be enriched, such as enteric-related bacteria, opportunistic pathogens, and antibiotic resistant gene (ARG)-carrying bacteria. To understand how ACB PoU filters change the microbial ecology of drinking water, studies were conducted using both laboratory-based manifold systems that received Ann Arbor tap water, and filters deployed in the field in response to the Flint water crisis. This presentation will show the mechanisms of bacteria colonization in the ACB PoU filters and discuss the overall risks involved in using the filter as the sole treatment barrier for tap water.
Commercial activated carbon block (ACB) point-of-use (PoU) drinking water filters are widely used to remove chemicals of concern from tap water. ACB PoU filters, however, are an incubator of bacteria because they remove disinfectant residual and adsorb organic compounds that can serve as bacterial substrates. Bacterial growth in ACB PoU filters raises questions about whether waterborne bacteria that pose health risks can be enriched, such as enteric-related bacteria, opportunistic pathogens, and antibiotic resistant gene (ARG)-carrying bacteria. To understand how ACB PoU filters change the microbial ecology of drinking water, studies were conducted using both laboratory-based manifold systems that received Ann Arbor tap water, and filters deployed in the field in response to the Flint water crisis. This presentation will show the mechanisms of bacteria colonization in the ACB PoU filters and discuss the overall risks involved in using the filter as the sole treatment barrier for tap water.
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