E2.02A Cheng 2018 ReNUWIt Annual Meeting Poster

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Abstract/Contents

Abstract: Extensive use of antibiotics for human and veterinary purposes has accelerated the evolution of antimicrobial resistance in bacteria which promotes wastewater as an environmental reservoir of antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs).
In this study, capability of the POWER* system in controlling antibiotic resistance was investigated in comparison to that in conventional wastewater treatment processes. Significantly higher removal of ARB was observed in the POWER system in comparison with conventional activated sludge process. It was also found that the POWER system resulted in a lower ratio of bacteria with ARGs in the surviving bacteria. More interestingly, 6 of 7 ARGs (qnrA, qnrB, qnrS, sul1, ermB, blaTEM) in bacteriophages were removed in the POWER system. In contrast, the conventional activated sludge process increased ARGs in the bacteriophages. Given that phages may act as vectors for genetic exchange, they could play a vital role in the spread of ARGs.
This study demonstrated that the POWER system is a promising process to decrease ARB and ARGs in the treated water, thus minimizing the spread of antibiotic resistance to the environment.

Type of resource	other
Date created	May 2018

Subject	Re-inventing the Nation’s Urban Water Infrastructure
Subject	ReNUWIt
Subject	E2.02A
Subject	Efficient Engineered Systems
Subject	Energy and resource recovery
Subject	Las Cruces Wastewater Treatment Plant
Subject	Las Cruces
Subject	New Mexico

Location	https://purl.stanford.edu/kq705gc1840

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

Preferred Citation: Cheng, Xiaoxiao and Zhang, Yanyan and Nimalakhandan, Nagamany. (2018). E2.02A Cheng 2018 ReNUWIt Annual Meeting Poster. Stanford Digital Repository. Available at: https://purl.stanford.edu/kq705gc1840

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

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