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Emerging investigator series: Locally Enhanced Electric Field Treatment (LEEFT) with Nanowire Modified Electrodes for Water Disinfection in Pipes

Abstract

Chlorine disinfection inevitably generates carcinogenic by-products. Alternative non-chlorine-based techniques in the centralized treatment plants cannot produce residual antimicrobial power in water disinfection systems. Here, we propose locally enhanced electric field treatment (LEEFT) for chemical-free water disinfection in pipes. A tubular LEEFT device with coaxial electrodes is rationally developed for easy adaption to current water distribution system as a segment of the pipelines. The center electrode is modified with perpendicularly grown nanowires, so that the electric field strength near the tips of the nanowires is significantly enhanced for pathogen inactivation. We have demonstrated >6-log inactivation of bacteria with 1 V, a small voltage that can be generated in situ by flowing water.

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Publication details

The article was received on 01 Aug 2019, accepted on 19 Nov 2019 and first published on 22 Nov 2019


Article type: Paper
DOI: 10.1039/C9EN00875F
Environ. Sci.: Nano, 2019, Accepted Manuscript

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    Emerging investigator series: Locally Enhanced Electric Field Treatment (LEEFT) with Nanowire Modified Electrodes for Water Disinfection in Pipes

    J. Zhou, T. Wang, W. Chen, B. Lin and X. Xie, Environ. Sci.: Nano, 2019, Accepted Manuscript , DOI: 10.1039/C9EN00875F

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