Treatment of industrial effluents by electrocoagulation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25006096%3A_____%2F17%3AN0000011" target="_blank" >RIV/25006096:_____/17:N0000011 - isvavai.cz</a>
Result on the web
<a href="http://www.slsz.cz/icct2017/_0_ABSTRAKTS/08_Waste/P113-Krystynik.pdf" target="_blank" >http://www.slsz.cz/icct2017/_0_ABSTRAKTS/08_Waste/P113-Krystynik.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Treatment of industrial effluents by electrocoagulation
Original language description
Poster presentation Electro-coagulation is a water treatment method that can used for removal of a wide range of contaminants via (co)precipitation processes. Whilst chemical coagulation is the standard procedure in industry, where soluble salts of Al or Fe are used (e.g. Al2(SO4)3 and FeCl3), this can be replaced by an electrochemical alternative (EC) where the precipitating agent (e.g. Al3+, Fe3+) is generated by corrosion of metallic electrodes of aluminum or steel. The use of electrodes as the vehicle for delivery of Fe or Al ions to solution, effectively replaces chemical dosing stations with more compact electrochemical reactors. Various types of contaminated water from three different industrial sites in Czech Republic were tested in half scale EC system operating in continuous regime (100 L/h). Treated types of water were following: groundwater with nickel and hexavalent chromium and wastewater with arsenic and wastewater with thallium apart from common heavy metals. The results have shown that the removal efficacies are strongly dependent on pH of treated effluent, the type of electrode, the dose of coagulant and other parameters. It is also very reliant on contaminant content in treated effluent. An addition of flocculating agent was also tested on the improvements of process performance.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20701 - Environmental and geological engineering, geotechnics
Result continuities
Project
<a href="/en/project/TA04020130" target="_blank" >TA04020130: Electrochemical removal of toxic metals from polluted water</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů