Abstract
ABSTRACT
This paper describes the use of an H2O2/UV oxidation process as an innovative technology for the advanced treatment of textile wastewater to meet the new discharge standards of 1998 in Taiwan. The new regulation requires that the discharge COD and color must be less than 100 mg/L and 400 in ADMI units, respectively. The focus of this study was on the evaluation of process removal efficiency as well as the unit operating cost for the treatment of a secondary effluent of textile waste-water. As a result, under the conditions of about 560 mg/L of H2O2 and a UV lamp power of the 14 W color can be removed completely with a treatment time of about 20 min, and the maximum COD removal of approximately 90% can be obtained with a treatment time of about 40 min. To reduce the COD from 160 to 100 mg/L, the operating cost including lamp replacement, chemical, and electrical cost is 0.85 US$ per cubic meter wastewater treated.
Key words:
Advanced oxidation processes; hydrogen peroxide; ultraviolet light; textile wastewater
Get full access to this article
View all access options for this article.