کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4453712 1620812 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of C.I. Reactive Red 2 by low pressure UV/chlorine advanced oxidation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست علوم زیست محیطی (عمومی)
پیش نمایش صفحه اول مقاله
Removal of C.I. Reactive Red 2 by low pressure UV/chlorine advanced oxidation
چکیده انگلیسی

Azo dyes are commonly found as pollutants in wastewater from the textile industry, and can cause environmental problems because of their color and toxicity. The removal of a typical azo dye named C.I. Reactive Red 2 (RR2) during low pressure ultraviolet (UV)/chlorine oxidation was investigated in this study. UV irradiation at 254 nm and addition of free chlorine provided much higher removal rates of RR2 and color than UV irradiation or chlorination alone. Increasing the free chlorine dose enhanced the removal efficiency of RR2 and color by UV/chlorine oxidation. Experiments performed with nitrobenzene (NB) or benzoic acid (BA) as scavengers showed that radicals (especially OH) formed during UV/chlorine oxidation are important in the RR2 removal. Addition of HCO3− and Cl− to the RR2 solution did not inhibit the removal of RR2 during UV/chlorine oxidation.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Sciences - Volume 41, March 2016, Pages 227–234
نویسندگان
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