کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
578210 | 1453121 | 2012 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wet air oxidation of pretreatment of pharmaceutical wastewater by Cu2+ and [PxWmOy]qâ co-catalyst system
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This study concentrates on the pretreatment of real wastewater using catalytic wet air oxidation (CWAO). WO3â and PO43â contained in fosfomycin pharmaceutical wastewater (FPW) and Cu2+ contained in berberine pharmaceutical wastewater (BPW) were studied as CWAO influent. Mixture of this two streams were reused to form Cu2+ and [PxWmOy]qâ, namely polyoxometalates (POMs) as co-catalyst system to treat themselves. Experiments were conducted to investigate the effects of the initial oxygen pressure and temperature on the COD (chemical oxygen demand), TOC (total organic carbon) removal and biodegradable enhancement, it was discovered that over 40% of COD and TOC removal can be easily realized in an hour of WAO oxidation at 523Â K, 1.4Â MPa. The BOD5/COD (BOD5, biochemical oxygen demand in 5 days) of this two pharmaceutical mixture ascended from nonexistent to maximum 0.41 depends on the optimal FPW:BPW volume ratio 4:1, to compose POM co-catalyst system. Organic pollutants were incompletely oxidized to propionic acid and other intermediates. Some properties (e.g., TGA, IR, XRF) of POM catalyst separated from effluent, were obtained to provide additional information.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volumes 217â218, 30 May 2012, Pages 366-373
Journal: Journal of Hazardous Materials - Volumes 217â218, 30 May 2012, Pages 366-373
نویسندگان
Guowen Wang, Dong Wang, Xiaochen Xu, Lifen Liu, Fenglin Yang,