کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4997201 1459905 2017 38 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microbial communities in the functional areas of a biofilm reactor with anaerobic-aerobic process for oily wastewater treatment
ترجمه فارسی عنوان
جوامع میکروبی در مناطق کاربردی یک رآکتور بیوفیلم با فرآیند بی هوازی-هوازی برای درمان فاضلاب روغنی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Microbial communities in the functional areas of biofilm reactors with large height-diameter ratio using the anaerobic-aerobic (A/O) reflux process was investigated to treat heavy oil refinery wastewater without pretreatment. In the process, chemical oxygen demand (COD) and total nitrogen (TN) removal reached 93.2% and 82.8%, and the anaerobic biofilm reactor was responsible for 95% and 99%, respectively. Areas for hydrolysis acidification and acetic acid production, methane production, and COD recovery were obvious in the anaerobic reactor. Among all areas, area for hydrolysis acidification and acetic acid production was the key factor to improve COD removal efficiency. High throughput sequencing of 16S rDNA gene showed that the native community was mainly composed of functional groups for hydrocarbon degradation, syntrophic bacteria union body, methanogenesis, nitrification, denitrification, and sulfate reduction. The deviations between predicted values and actual COD and TN removal were less than 5% in the optimal prediction model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 238, August 2017, Pages 7-15
نویسندگان
, , , , , , , , , ,