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Concentration of Vanadium in Jeju Groundwater Using Reverse Osmosis Processes  

Lee, Ho-Won (Dept. of Chemical and Biological Engineering, Cheju National University)
Moon, Soo-Hyoung (R&D Center, Jeju Special Self-Governing Province Development Co.)
Ko, Kyung-Soo (R&D Center, Jeju Special Self-Governing Province Development Co.)
Publication Information
Membrane Journal / v.18, no.3, 2008 , pp. 241-249 More about this Journal
Abstract
This study is to concentrate vanadium in Jeju groundwater using reverse osmosis processes, and to utilize the concentrate for vanadium water. Groundwater samples were taken from Wahyul, Ayum, and Seogwipo groundwater wells with different in vanadium content each other. Their vanadiuln concentrations were 31.8, 44.5, and 53.0 ppb, respectively. The rejection coefficients of every component in groundwater were increased with the increase of TMP At the TMP of $8 kg_f/cm^2$, the rejection coefficients of vanadium, sodium, potassium, aluminium, iron, and barium were $97.4%{\sim}99.0%,\;97.7%{\sim}97.8%,\;98.0%{\sim}98.3%,\;94.8%{\sim}97.5%,\;88.0%{\sim}96.4.0%$, and $97.9{\sim}98.0%$, respectively. And those of magnesium, calcium, chromium, mauganese, and strontium in three groundwater were more than 99.0% at the same TMP. It was possible that vanadium contents of Wahyul, Ayum and Seogwipo groundwater were concentrated into 58.6, 118.9, and 165.1 ppb, respectively, by 6 stages treatment at the recovery ratio of 15%. And these concentrated water (vanadium water) did not exceed the permissible drinking water standards.
Keywords
vanadium; groundwater; reverse osmosis process; drinking water;
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Times Cited By KSCI : 2  (Citation Analysis)
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