A novel osmosis membrane bioreactor-membrane distillation hybrid system for wastewater treatment and reuse
- Publication Type:
- Journal Article
- Bioresource Technology, 2016, 209 pp. 8 - 15
- Issue Date:
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|Accepted Manuscript A novel osmosis membrane bioreactor-membrane distilation hybrid system (BITE 16152).pdf||Accepted Manuscript Version||4.36 MB|
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© 2016 . A novel approach was designed to simultaneously enhance nutrient removal and reduce membrane fouling for wastewater treatment using an attached growth biofilm (AGB) integrated with an osmosis membrane bioreactor (OsMBR) system for the first time. In this study, a highly charged organic compound (HEDTA3-) was employed as a novel draw solution in the AGB-OsMBR system to obtain a low reverse salt flux, maintain a healthy environment for the microorganisms. The AGB-OsMBR system achieved a stable water flux of 3.62 L/m2 h, high nutrient removal of 99% and less fouling during a 60-day operation. Furthermore, the high salinity of diluted draw solution could be effectively recovered by membrane distillation (MD) process with salt rejection of 99.7%. The diluted draw solution was re-concentrated to its initial status (56.1 mS/cm) at recovery of 9.8% after 6 h. The work demonstrated that novel multi-barrier systems could produce high quality potable water from impaired streams.
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