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Treatment of Sulfonated Azo Dye Reactive Red 198 by UV/H
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نویسنده
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ribeiro j.p. ,oliveira j.t. ,oliveira a.g. ,sousa f.w. ,abdala neto e.f. ,vidal c.b. ,de keukeleire d. ,santos a.b.d. ,nascimento r.f.
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منبع
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journal of chemistry - 2014 - دوره : 2014 - شماره : 0
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چکیده
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Uv/hsystem was tested on the color removal of sulfonated azo dye reactive red 198 (rr),which is widely used in textile process. the effects of hydrogen peroxide concentration,temperature,ph,and the in-line addition of hydrogen peroxide on high color and chemical oxygen demand (cod) removals were investigated. the kinetic of dye decolorization was also determined. the results showed that 2% hdecreased the process efficiency,while 1% hsolution led to a better performance of the system. despite the fact that the ph increase had small effect on color removal,it affects positively cod removals. the same behavior was found for temperature increase. a high temperature resulted in a slight decrease in color removal and a sharp decrease for cod removal. in addition the hin-line provided a small improvement in both color and cod removals. uv/1% htreatment was the most efficient,the good performance was linked to higher amount of hydroxyl radicals formed. © 2014 jefferson p. ribeiro et al.
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آدرس
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department of hydraulic and environmental engineering,federal university of ceará,rua do contorno,s/n campus do pici,bloco 713,fortaleza, Brazil, department of analytical chemistry and physical chemistry,federal university of ceaŕ,rua do contorno,humberto monte s/n campus do pici,bloco 940,fortaleza, Brazil, department of analytical chemistry and physical chemistry,federal university of ceaŕ,rua do contorno,humberto monte s/n campus do pici,bloco 940,fortaleza, Brazil, department of hydraulic and environmental engineering,federal university of ceará,rua do contorno,s/n campus do pici,bloco 713,fortaleza, Brazil, department of hydraulic and environmental engineering,federal university of ceará,rua do contorno,s/n campus do pici,bloco 713,fortaleza, Brazil, department of hydraulic and environmental engineering,federal university of ceará,rua do contorno,s/n campus do pici,bloco 713,fortaleza, Brazil, faculty of pharmaceutical sciences,ghent university,harelbekestraat 72, Belgium, department of hydraulic and environmental engineering,federal university of ceará,rua do contorno,s/n campus do pici,bloco 713,fortaleza, Brazil, department of analytical chemistry and physical chemistry,federal university of ceaŕ,rua do contorno,humberto monte s/n campus do pici,bloco 940,fortaleza, Brazil
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Authors
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