Assessment of the start-up of the passive aeration simultaneous nitrification and denitrification (PASND) process using activated sludge as a sole seed for low-energy C and N removal

Abstract

Conventional activated sludge-based wastewater treatment process is known to be energy intensive to operate due to high energy requirement for compressed air supply into the bulk wastewater solution. The use...

Partial nitrification/ANAMMOX (PN/A) membrane aerated biofilm reactor (MABR) under a low C/N ratio and metagenomics identification

“…These showed that both partial nitrification and denitrification were enhanced. 52,53 By increasing the C/N ratio to 3-4 in the reactor, the TNRE was increased from 59.02% to 83.66%, and the microbial structure in the reactor was greatly changed. The relative abundance of Flavobacterium ranked first.…”