کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
576771 | 1453085 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Application of cetyltrimethylammonium bromide bentonite-titanium dioxide photocatalysis technology for pretreatment of aging leachate
ترجمه فارسی عنوان
استفاده از فناوری فوتوکاتالیز دی اکسید تیتانیوم بمونی بتونه تتریمیل آمونیوم برمید برای پیشگیری از شوری سالم
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
Organobentonite-photocatalysis technology was applied to pretreat aging leachate containing refractory pollutants. The organobentonite was synthesized by organic modifier cetyltrimethylammonium bromide (CTMAB) and natural bentonite. In characterization experiments, we could confirm that organic functional groups of cetyltrimethylammonium (CTMA+) cations were successfully loaded on the surface of bentonite. The combination of CTMAB2.5 adsorption and TiO2 photocatalysis was superior to either running separately. Furthermore, removal efficiency of simultaneously utilizing CTMAB2.5 and TiO2 was better than them in succession. The combination technology was feasible and was optimized by response surface methodology (RSM) with COD and NH3-N removal rate as the target responses. The optimal operation conditions calculated from the regression equations were CTMAB2.5 dosage of 7.5Â g/L, pH at 3.5, TiO2 dosage of 1.63Â g/L, and reaction time for 60.02Â min, which maintained the removal of COD and NH3-N at 82% and 37%, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 275, 30 June 2014, Pages 63-71
Journal: Journal of Hazardous Materials - Volume 275, 30 June 2014, Pages 63-71
نویسندگان
Fei-Fei Cai, Zhao-Hui Yang, Jing Huang, Guang-Ming Zeng, Li-ke Wang, Jian Yang,