کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9674123 1453198 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Decolorization and mineralization of a phthalocyanine dye C.I. Direct Blue 199 using UV/H2O2 process
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Decolorization and mineralization of a phthalocyanine dye C.I. Direct Blue 199 using UV/H2O2 process
چکیده انگلیسی
In this study, the successful decolorization and mineralization of phthalocyanine dye (C.I. Direct Blue 199, DB 199) by an advanced oxidation process (AOP), UV/H2O2, were observed while the experimental variables such as hydrogen peroxide dosage, UV dosage, initial dye concentration and pH were evaluated. The operating conditions for 90% decolorization of C.I. DB 199 and 74% removal of total organic carbon (TOC) were obtained for initial dye concentration of 20 mg l−1, hydrogen peroxide dosage of 116.32 mM, UV dosage of 560 W and pH of 8.9 in 30 min. The pseudo-first order rate constant is a linear function of reverse of initial dye concentration. They linearly increased by incrementing UV dosage, yet were non-linear enhancement by increasing the hydrogen peroxide concentration. A higher pseudo-first order rate constant about 0.15 min−1 was observed while hydrogen peroxide concentration within 5.82-116.32 mM. Moreover, the decolorization of C.I. DB 199 was observed to be more difficult than that of an azo dye, C.I. Acid Black 1, under the same operating conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 125, Issues 1–3, 17 October 2005, Pages 96-101
نویسندگان
, ,