| Budget Amount *help |
¥45,890,000 (Direct Cost: ¥35,300,000、Indirect Cost: ¥10,590,000)
Fiscal Year 2012: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
Fiscal Year 2011: ¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
Fiscal Year 2010: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
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| Research Abstract |
Novel water treatment techniques were developed for the rapid and effective removal of various pharmaceuticals and evaluated by using synthetic and actual water samples. Admicellar sorption using a cationic surfactant and silica particles allowed to collect beta-lactam antibiotics efficiently and degrade them in situ.Surfactant-assisted precipitation was achieved by generating aluminum hydroxide in thepresence of an anionic surfactant. The method offered the nearly complete removal of a wide variety of pharmaceuticals. The above two methods successfully used the hydrophobic region of surfactant molecules for the effective separation. Polyelectrolyte-surfactant coagulation was useful for the removal of estrogen with the aid of peroxidase and hydrogen peroxide. Chitosan- and polyallylamine-conjugated thermoresponsive polymers facilitated the effective removal of phenolic compounds after enzymatic reactions. In the case of chelating polymers containing iminodiacetic acid, different toxic trace elements were simultaneously removed. Further, sorption on Sephadex gel followed by successive desorption were developed to study the behavior of clinically used gadolinium complex in environmental water .
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