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Development of a novel off-grid drinking water production system integrating electrochemically activated solutions and ultrafiltration membranes

Clayton, Gillian; Thorn, Robin; Reynolds, Darren M

Authors

Gillian Clayton gillian.clayton@uwe.ac.uk

Robin Thorn Robin2.Thorn@uwe.ac.uk
Associate Professor Molecular Life Sciences



Abstract

© 2017 Elsevier Ltd Approximately 800 million people live without clean drinking water. Diarrhoea is responsible for between 1.7 and 2 million deaths each year (primarily children) which are the result of poor drinking water quality and sanitation. The main aim of this study was to demonstrate the production of drinking water from a raw water source using an off-grid drinking water production system. The off-grid drinking water production system (DWPS) developed at UWE Bristol, combines an ultra-filtration (UF) system with in situ generation of electrochemically activated solutions (ECAS). ECAS has two functional roles within the system; to manage biofilms within the UF system and as a disinfectant. Integrated in-situ probes (pH, oxidation reduction potential, chlorine, conductivity and dissolved oxygen) coupled with a water quality sensing network (pH, water temperature, conductivity and dissolved oxygen) enabled real time monitoring of; the operational efficiency of the DWPS, and the physicochemical parameters of both the raw water source and the produced drinking water. Spot samples of both raw and treated water were sent for independent chemical and microbial analysis at an accredited laboratory which demonstrated that the DWPS produced biologically safe potable drinking water according to the Drinking Water Inspectorate (DWI) standards. Samples from the raw water source were shown to be consistently unsuitable for human consumption, failing several of the DWI standards for potable water supply, including coliform bacteria. This study demonstrated that the novel off-grid DWPS was capable of producing DWI standard drinking water from a heavily biologically contaminated water source.

Citation

Clayton, G., Thorn, R., & Reynolds, D. M. (2019). Development of a novel off-grid drinking water production system integrating electrochemically activated solutions and ultrafiltration membranes. Journal of Water Process Engineering, 30, https://doi.org/10.1016/j.jwpe.2017.08.018

Journal Article Type Article
Acceptance Date Aug 22, 2017
Online Publication Date Aug 31, 2017
Publication Date Aug 1, 2019
Deposit Date Sep 8, 2017
Publicly Available Date Sep 1, 2018
Journal Journal of Water Process Engineering
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 30
Article Number 100480
DOI https://doi.org/10.1016/j.jwpe.2017.08.018
Keywords off-grid, drinking water production, electrochemically activated solutions, ultrafiltration
Public URL https://uwe-repository.worktribe.com/output/882833
Publisher URL http://dx.doi.org/10.1016/j.jwpe.2017.08.018

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