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DOI : ,    Vol.10, No.3, 85 ~ 98, 2002
Title
A Study on the Dye Wastewater Treatment Using in the Ultrasonic Process ( 1 )
이성기Seong Key Lee,송영일Young Il Song,송현석Hyun Suk Song
Abstract
This study was performed to investigate effects low-ultrasonic and high-ultrasonic factor and COD concentration variations and Color removal efficiency of ultrasonic treated dyeing wastewater. The experiments for optimal conditions to make removal efficiency higher in controlling ultrasonic irradiation time with dye wastewater and ultrasonic cavitation factor were carried out and applying dye wastewater was also performed. The results are as follows. H2O2 formation amount with pH 3 seemed to be 1.8㎎/l in high-ultrasonic and to be 1.08mg/l in low-ultrasonic. it was appeared to be higher in pH 3 than pH 7. The reaction of OH radical increased to low pH in low-ultrasonic and high-ultrasonic. Temperature increase ration with ultrasonication time seemed to be 0.275℃/min in low-ultrasonic and to be 0.367℃/min in high-ultrasonic after 120 minutes irradiation. The variation concentration of COD with frequency intensity seemed to be 308ppm in low-ultrasonic and to be 259ppm in high-ultrasonic after 120 minutes irradiation, Color removal efficiency was 83% in low-ultrasonic and 93% in high-ultrasonic. The higher sound intensity got, the higher removal efficiency achieved. In conclusion, the results of this research suggested that ultrasonic treatment can be effective for treatment of dyeing wastewater.
Key Words
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