Journal
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
Volume 755, Issue -, Pages 100-108Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2015.07.029
Keywords
Natural organic matter (NOM); Electrochemical methods; Electro-oxidation; Electrocoagulation; Water treatment
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Funding
- City of Mikkeli
- European Union
- Regional Council of South Savo [A31495]
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Electrochemical techniques such as electrocoagulation (EC) and electro-oxidation (EO) have proved their efficiency in humic acid, coliform and algae removal from surface waters. Many investigations have also been conducted with synthetic wastewaters. Electrocoagulation combined with membrane filtration hybrid systems can increase natural organic matter (NOM) removal rates remarkably. In EO technology, electrolysis efficiency is strongly linked to electrode composition. Efficiency could be increased by changing the reactor design, using commercial electrodes and exploring the semiconducting properties of oxide mixtures. Electrochemical methods may present an attractive alternative to other NOM removal techniques, such as conventional coagulation and chemical oxidation methods, for natural waters. Surface water treatment with electrocoagulation can produce high quality water, for either potable or industrial use. This technology appears to remove some toxic pollutants from wastewater and could be used as a pretreatment in combination with some other purification technology. Boron-doped diamond (BDD) anodes have proved effective in humic acid removal from aqueous solutions and potentially their total mineralization. (C) 2015 Elsevier B.V. All rights reserved.
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