کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4996724 | 1459903 | 2017 | 9 صفحه PDF | دانلود رایگان |
- An OMBR-MF hybrid system performance was examined employing TFC-PA FO membrane.
- Simultaneous nitrification-denitrification achieved in a reactor inserting baffles.
- Reasonably high flux and low salinity build up were observed due to MF membrane.
- No physical or chemical membrane was performed during 38Â days of operation.
- High organic matter and nutrient removal efficiency was obtained.
The present study investigated the performance of an integrated osmotic and microfiltration membrane bioreactor system for wastewater treatment employing baffles in the reactor. Thus, this reactor design enables both aerobic and anoxic processes in an attempt to reduce the process footprint and energy costs associated with continuous aeration. The process performance was evaluated in terms of water flux, salinity build up in the bioreactor, organic and nutrient removal and microbial activity using synthetic reverse osmosis (RO) brine as draw solution (DS). The incorporation of MF membrane was effective in maintaining a reasonable salinity level (612-1434Â mg/L) in the reactor which resulted in a much lower flux decline (i.e. 11.48-6.98Â LMH) as compared to previous studies. The stable operation of the osmotic membrane bioreactor-forward osmosis (OMBR-FO) process resulted in an effective removal of both organic matter (97.84%) and nutrient (phosphate 87.36% and total nitrogen 94.28%), respectively.
137
Journal: Bioresource Technology - Volume 240, September 2017, Pages 50-58