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Frontiers of Environmental Science & Engineering >> 2018, Volume 12, Issue 6 doi: 10.1007/s11783-018-1047-6
Nitrogen removal performance of municipal reverse osmosis concentrate with low C/N ratio by membrane-aerated biofilm reactor
Abstract
MABR exhibits excellent TN removal performance for treating ROC with low C/N ratio. Operating conditions should be properly controlled to achieve optimal TN removal. Denitrifying bacteria and NOB are proved notably inhibited by high salinity stress. The TN removal rate remains over 70% when the NaCl addition amount is below 20 g/L.
Keywords
Membrane-aerated biofilm reactor (MABR) ; Salinity ; Total nitrogen ; Reverse osmosis concentrate
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