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Publikācija: Drinking Water Disinfection at Small/Individual Scale: Electrochemical Disinfection at Flow Conditions

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Nosaukums oriģinālvalodā Drinking Water Disinfection at Small/Individual Scale: Electrochemical Disinfection at Flow Conditions
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.1. Būvniecības un transporta inženierzinātnes
Autori Linda Mežule
Viktorija Deņisova
Atslēgas vārdi Drinking water; electrochemical disinfection; E. coli
Anotācija Availability of efficient and affordable water treatment technologies that decrease bacterial, viral and protozoan burden in rural communities is still a challenge. Despite the high efficiency of chlorination, it generally requires storage of the disinfectant and its qualified use. Electrochemical disinfection is regarded as one of the reagent-free alternatives to chemical chlorination due to its possibility to generate free chlorine from chloride ions naturally presented in drinking water. The inactivation efficiency of electrochemical disinfection system is mostly dependent on many parameters, such as electrode material, cell configuration, electrolyte composition, microbial load and type, current density and electrolyte flow rate. Moreover, the overall design of the system must support simple and rapid production of disinfected water. Here we present a system (EDI-001) suitable for water treatment at flow conditions. Tests with titanium oxide-based ceramic electrodes at laboratory conditions have demonstrated that it is possible to generate enough free chlorine from tap water (Cl- 10 mg/L) and obtain suitable disinfection efficiency (5 log E. coli) after 15 min of operation at low current density conditions (30.9 A/m2). Thus, the system can be applied for disinfection purposes. Further research involves optimisation of the system to generate/neutralise residual chlorine concentration that is accepted by health authorities.
Hipersaite: https://www.aka.fi/globalassets/30tiedepoliittinen-toiminta/kv-toiminta/water-jpi/water-jpi-2018-abstract-book.pdf 
Atsauce Mežule, L., Deņisova, V. Drinking Water Disinfection at Small/Individual Scale: Electrochemical Disinfection at Flow Conditions. No: Water JPI 2018 Conference: Abstract Book, Somija, Helsinki, 6.-7. jūnijs, 2018. Helsinki: 2018, 22.-22.lpp.
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