Loading...
Towards potable reuse: assessment of the first pilot-scale hybrid osmotic membrane bioreactor and denitrification system
Wait, Andrew Scott
Wait, Andrew Scott
Citations
Altmetric:
Advisor
Editor
Date
Date Issued
2012
Date Submitted
2012
Collections
Research Projects
Organizational Units
Journal Issue
Embargo Expires
2013-12-01
Abstract
The results of a pilot-scale assessment of the osmotic membrane bioreactor (OMBR) process are presented. In past lab studies of the OMBR process, product water quality was limited by low rejection of nitrogen compounds such as ammonia and nitrate. In this study, the first industrial OMBR prototypes were tested in a system comprising aerated and anoxic bioreactors and a continuous RO process to treat raw wastewater. Two long-term investigations were conducted, one for 14 weeks and a second for 18 weeks, to assess the performance of two prototype FO membrane modules and a nitrogen removal system. Water flux was limited by a number of variables including membrane fouling and salt accumulation in the bioreactors. However, declines in water flux due to membrane fouling were recoverable with membrane cleaning, including osmotic backwashing. Generally, very high quality product water was generated by the pilot system.
Associated Publications
Rights
Copyright of the original work is retained by the author.