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KMID : 1024520040130020167
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Journal of the Environmental Sciences
2004 Volume.13 No. 2 p.167 ~ p.173
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Characteristics of deodorization for malodorants in aqueous solution by sonication
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Yoo Young-Eok
Yasuaki Maeda
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Abstract
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A aqueous solution of malodorants (i.e., n-valeraldehyde, n-valeric- acid, 2-methylisoborneol, and trimethylamine) was exposed to 200KHz ultrasound with a power of 6.0W/ per unit volume in a sonochemical reactor under room temperature and atmospheric pressure condition. The concentration of malodorants decreased with irradiation time, indicating pseudo-first-order kinetics. The removal efficiency of malodorants was about from 50% to 96% decomposed after 90 minutes sonication. At the deodorization, it was determined by triangle odor bag(TOB) method for odor sensory measurement, and it indicated that over 60% of relative odors were deodorized with degradation by the sonication.
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KEYWORD
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Triangle odor bag(TOB) method, ASTM, Ultrasound, Malodorants, Deodorization
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