کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7079050 1459989 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of PAC dosage in a pilot-scale PAC-MBR treating micro-polluted surface water
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Effect of PAC dosage in a pilot-scale PAC-MBR treating micro-polluted surface water
چکیده انگلیسی
To address the water scarcity issue and advance the traditional drinking water treatment technique, a powdered activated carbon-amended membrane bioreactor (PAC-MBR) is proposed for micro-polluted surface water treatment. A pilot-scale study was carried out by initially dosing different amounts of PAC into the MBR. Comparative results showed that 2 g/L performed the best among 0, 1, 2 and 3 g/L PAC-MBR regarding organic matter and ammonia removal as well as membrane flux sustainability. 1 g/L PAC-MBR exhibited a marginal improvement in pollutant removal compared to the non-PAC system. The accumulation of organic matter in the bulk mixture of 3 g/L PAC-MBR led to poorer organic removal and severer membrane fouling. Molecular weight distribution of the bulk liquid in 2 g/L PAC-MBR revealed the synergistic effects of PAC adsorption/biodegradation and membrane rejection on organic matter removal. Additionally, a lower amount of soluble extracellular polymer substances in the bulk can be secured in 21 days operation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 154, February 2014, Pages 290-296
نویسندگان
, , , , ,