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KMID : 0385520130260010011
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Analytical Science & Technology
2013 Volume.26 No. 1 p.11 ~ p.18
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Study on desorption characteristics by mixed resins of active carbons and ion exchange resins for perchlorate ion
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Kim Young-Eun
Paeng Ki-Jung
Jeong Yu-Dong
Kim Sun-Hwan
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Abstract
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Perchlorate (ClO4?) is the material that is used as propellants of rockets and material of explosive as a form of ammonium perchlorate salts. Ammonium perchlorate solution of high concentration is recovered from expired rocket through demilitarization process by the water-jet method. If people take perchlorate in food and water, it interferes with adsorption of iodide which is the substance needed to synthesize thyroid hormone in the thyroid gland. It has an bad influence upon disturbing pregnancy and synthesis of growth hormone. So the effective method is necessary to remove perchlorate anion in water. By considering economic aspect, we studied effective desorption (regeneration) of perchlorate anion from adsorbent with studies on removal and adsorption of perchlorate anion. Desorption experiment was conducted as batch type. Depending on various conditions (concentration, pH, cation·anion form) elution, we evaluated amount, efficiency of desorption(amount of adsorption/desorption × 100). Also, research confirmed the efficiency of mixed resins between anion exchange resin and activated carbon and expected synergic effect from advantages of both adsorbents.
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KEYWORD
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perchlorate ion, demilitarization, ion exchange resin, active carbon, mixed resin, desorption
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