Journal
BIORESOURCE TECHNOLOGY
Volume 216, Issue -, Pages 399-405Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.05.075
Keywords
Salinity build-up; Anaerobic membrane bioreactor (AnMBR); Trace organic contaminants (TrOCs); Wastewater treatment; Biogas production
Funding
- Australian Research Council [DP140103864]
- Chinese Scholarship Council
- University of Wollongong - Australia
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The effects of elevated inorganic salt concentration on anaerobic membrane bioreactor ( AnMBR) treatment regarding basic biological performance and trace organic contaminant ( TrOC) removal were investigated. A set of 33 TrOCs were selected to represent pharmaceuticals, steroids, and pesticides in municipal wastewater. Results show potential adverse effects of increase in the bioreactor salinity to 15 g/L ( as NaCl) on the performance of AnMBR with respect to chemical oxygen demand removal, biogas production, and the removal of most hydrophilic TrOCs. Furthermore, a decrease in biomass production was observed as salinity in the bioreactor increased. The removal of most hydrophobic TrOCs was high and was not significantly affected by salinity build-up in the bioreactor. The accumulation of a few persistent TrOCs in the sludge phase was observed, but such accumulation did not vary significantly as salinity in the bioreactor increased. Crown Copyright (C) 2016 Published by Elsevier Ltd. All rights reserved.
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