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6CCVD Research

Testing the use of cells equipped with solid polymer electrolytes for electro-disinfection

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2020-04-01
JournalThe Science of The Total Environment
AuthorsJulia Isidro, D. Brackemeyer, Cristina SƔez, Javier Llanos, Justo Lobato
InstitutionsUniversity of Castilla-La Mancha
Citations30

Abstract

Section titled ā€œAbstractā€

This work focuses on disinfection of water using electrolysis with boron doped diamond (BDD) coatings and faces this challenge by comparing the performance of two different cells manufactured by CONDIAS GmbH (Izehoe, Germany): CONDIACELLĀ® ECWP and CabECO cells. They are both equipped with diamond electrodes, but the mechanical design is completely different, varying not only by geometry but also by the flow conditions. ECWP is a flow-through cell with perforated electrodes while the CabECO cell is a zero-gap cell with a proton exchange membrane as a solid polymer electrolyte (SPE) separating the anode and cathode. At 0.02 Ah dm<sup>-3</sup> both cells attain around 3-5 logs pathogen removal, but design and sizing parameters give an advantage to the CabECO: it can minimize the production of chlorates and perchlorates when operating in a single-pass mode, which becomes a really remarkable point. In this paper, we report tests in which we demonstrate this outstanding performance and we also explain the differences observed in the two cells operating with the same water.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2013 - Highlights during the development of electrochemical engineering [Crossref]
  2. 2008 - The influence of products and by-products obtained by drinking water electrolysis on microorganisms [Crossref]
  3. 2009 - The occurrence of perchlorate during drinking water electrolysis using BDD anodes [Crossref]
  4. 2014 - Electrochemical advanced oxidation processes, formation of halogenate and Perhalogenate species: a critical review [Crossref]
  5. 2015 - Laboratory- and technical-scale comparison of chlorate and perchlorate formation during drinking water electrolysis: a field study [Crossref]
  6. 2017 - Effect of electrogenerated hydroxyl radicals, active chlorine and organic matter on the electrochemical inactivation of Pseudomonas aeruginosa using BDD and dimensionally stable anodes [Crossref]
  7. 2011 - Use of low current densities in electrolyses with conductive-diamond electrochemical ā€” oxidation to disinfect treated wastewaters for reuse [Crossref]
  8. 2016 - Use of DiaCell modules for the electro-disinfection of secondary-treated wastewater with diamond anodes [Crossref]
  9. 2018 - Disinfection of urine by conductive-diamond electrochemical oxidation [Crossref]
  10. 2018 - Electrochemical disinfection of groundwater for civil use - an example of an effective endogenous advanced oxidation process [Crossref]

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