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http://dx.doi.org/10.5762/KAIS.2013.14.4.2027

Comparison of Nitrate and Fluoride Removals between Reverse-Osmosis, Nano-Flitration, Electro-Adsorption, Elecero-Coagulation in Small Water Treatment Plants  

Han, Song-Hee (Department of Semiconductor & Display Engineering, Graduate School of BK21, Hoseo University)
Chang, In-Soung (Department of Environmental Engineering, Hoseo University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.4, 2013 , pp. 2027-2036 More about this Journal
Abstract
Comparison of removal performance between reverse osmosis(RO), nanofiltration(NF), electrocoagulation(EC) and electroadsorption(EA) for removal of nitrate and fluoride often exceeded the limits of water quality in small water treatment plants. Removals of nitrate and fluoride were 72-92% and 74-85% in RO, 5-15% and 1% in NF, 99% and 44% in EA equipped with MWCNT coated electrodes, 82% and 77% in EA equipped with Cu-MWCNT electrodes, and 11-46% and 69-99% in EC. Consequently, high removals of both ions were anticipated in RO. Effective removal of both ions are possible for EC, but great production of sludge is a big burden. EA equipped with the MWCNT electrodes showed a great fluctuation in removal efficiency, and electrode stability should be upgraded.
Keywords
Electro-adsorption; Electro-coagulation; Nano-filtration; Reverse-osmosis; Small water treatment plant;
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Times Cited By KSCI : 4  (Citation Analysis)
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