کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
36627 45138 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Polychlorinated biphenyl degradation in aqueous wastes by employing continuous fixed-bed bioreactors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Polychlorinated biphenyl degradation in aqueous wastes by employing continuous fixed-bed bioreactors
چکیده انگلیسی

Two laboratory scale biofilm bioreactors of identical configuration were set up and tested for the continuous treatment of waters artificially contaminated with simple or complex mixtures of low chlorinated biphenyls (PCBs) and chlorobenzoic acids (CBAs). Frosted glass beads and polyurethane foam cubes were employed as immobilization supports. A three-membered aerobic bacterial co-culture, that was previously shown to have a high degradation and dechlorination activity towards PCBs in fixed bed batch bioreactors, was used to inoculate both biofilm reactors. The two bioreactors developed, operating in a continuous mode, were both capable of degrading and stoichiometrically dechlorinating the PCBs and CBAs present in the influent. The PCB degradation and dechlorination efficiency of the reactors did not decrease by increasing the organic load or by changing the influent composition, thus indicating a good stability and versatility of the developed process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 41, Issue 4, April 2006, Pages 935–940
نویسندگان
, , , , ,