E3.03 Kantor 2018 ReNUWIt Annual Meeting Poster

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Abstract/Contents

Abstract: Several water-stressed cities in the US are now or will soon be augmenting their drinking water supplies with advanced treated recycled wastewater through a process known as direct potable reuse (DPR). While the safety of DPR has been investigated with regard to pathogens, we have limited knowledge of the overall microbial water quality through the treatment process and distribution. This project analyzed the microbiology of a DPR pilot facility in El Paso, TX and three simulated DWDSs fed by the pilot. We directly quantified and identified bacteria present at various stages of treatment. Cell counts bacterial diversity decreased across the DPR treatment train. Granular activated carbon (GAC) filters at the end of the train led to a stable microbial community, which partially persisted in the simulated distribution systems despite chlorination. This work suggests a shift in microbial identity of water through advanced treatment and a role for GAC in seeding the finished water.

Type of resource	other
Date created	May 2018

Subject	Re-inventing the Nation’s Urban Water Infrastructure
Subject	ReNUWIt
Subject	E3.03
Subject	Efficient Engineered Systems
Subject	Direct potable reuse
Subject	California
Subject	16s ribosomal rna
Subject	antibiotic resistance
Subject	bacterial community
Subject	byproducts
Subject	contamination
Subject	direct potable reuse
Subject	impact
Subject	membranes
Subject	metagenomics
Subject	ndma
Subject	perfluorochemicals
Subject	soil
Subject	trace organic contaminants
Subject	treatment trains
Subject	water treatment

Related Publication	Kantor, R. S., Miller, S. E., & Nelson, K. L. (2019). The Water Microbiome Through a Pilot Scale Advanced Treatment Facility for Direct Potable Reuse. Frontiers in Microbiology, 10. http://doi.org/10.3389/fmicb.2019.00993
Related item	Title Microbiomes of a pilot-scale advanced water treatment facility and simulated distribution dataset
Location	https://purl.stanford.edu/yc010bx6176

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License: This work is licensed under an Open Data Commons Attribution License v1.0.

Preferred Citation: Kantor, R.S., Miller, S.E., Kennedy, L.C., Nelson, K.L., and Rodriguez, R. (2018). E3.03 Kantor 2018 ReNUWIt Annual Meeting Poster. Stanford Digital Repository. Available at: https://purl.stanford.edu/yc010bx6176

Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt)

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