کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
628879 1455494 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Treatment of oily wastewater by organic–inorganic composite tubular ultrafiltration (UF) membranes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Treatment of oily wastewater by organic–inorganic composite tubular ultrafiltration (UF) membranes
چکیده انگلیسی

A tubular UF module equipped with polyvinylidene fluoride membranes modified by inorganic nano-sized alumina particles was used to purify oily wastewater from an oil field. The membrane water permeations of the UF process were analyzed. Retentions of chemical oxygen demand and total organic carbon were more than 90% and 98%, respectively. The results indicate that after UF treatment, oil content was below 1 mg/L, suspended solids content was below 1 mg/L, and solid particle median diameters were less than 2 μm. The quality of the permeation water met the requirement by oilfield injection or drainage. Fouled membranes and washed membranes were analyzed by scanning electron microscopy, and fouled membranes were backwashed with different solutions. Results show that the addition of nanosized alumina particles improved membrane antifouling performance, and the flux recovery ratio of modified membranes reached 100% washing with 1 wt% of OP-10 surfactant solution (pH 10).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 196, Issues 1–3, 5 September 2006, Pages 76-83