کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
686706 889110 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Treatment of wastewater containing Cl2 residue by packed cage rotating biological contactor (RBC) system
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Treatment of wastewater containing Cl2 residue by packed cage rotating biological contactor (RBC) system
چکیده انگلیسی

A packed cage rotating biological contactor (RBC) system was applied to treat wastewater containing Cl2 residue with concentration even up to 20 mg/L. However, Cl2 exhibited a negative effect on the efficiency of the system as evidenced by the decrease in the growth of bio-film. It could be concluded that the removal efficiency of the system decreased with the increase of Cl2 concentration or Cl2 loading. Due to inhibition of bio-film growth by the effects of Cl2 residue, the effluent suspended solids (SS) of the system was decreased. The bio-film was easily detached from the media under high growth rate conditions resulting in an increase of effluent SS. The COD and BOD5 removal efficiencies of the system under the highest organic and Cl2 loadings of 4.07 g BOD5/m2 d and 203.6 mg Cl2/m2 d, respectively, were 58.0 ± 3.2% and 60.7 ± 3.9%, respectively, while they were up to 83.3 ± 1.8% and 85.8 ± 2.0%, respectively, under the lowest organic and Cl2 loading of 2.04 g BOD5/m2 d and 25.5 mg Cl2/m2 d. However, the effluent SS of the system under above operating conditions was lower than 20 mg/L.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 97, Issue 14, September 2006, Pages 1735–1744
نویسندگان
,