標題: Start-up of simultaneous partial nitrification, anammox and denitrification (SNAD) process in sequencing batch biofilm reactor using novel biomass carriers
作者: Daverey, Achlesh
Chen, Yi-Chian
Dutta, Kasturi
Huang, Yu-Tzu
Lin, Jih-Gaw
環境工程研究所
Institute of Environmental Engineering
關鍵字: Anammox;SNAD;Start-up;Biofilm;Carrier
公開日期: 1-Aug-2015
摘要: Simultaneous partial nitrification, anammox and denitrification (SNAD) process was started-up in a 2.5 L sequencing batch biofilm reactor (SBBR) using novel biomass carriers. The SNAD process took only 51 d for start-up at nitrogen loading rate (NLR) and organic loading rate (OLR) of 120 and 60 g/m(3)-d, respectively. Long-term stable operation of SNAD process was observed at NLR and OLR of 360 and 180 g/m(3)-d with average total nitrogen and COD removal efficiencies of >88% and >90%, respectively. The values of conversion ratio Y(NO2-+NO3-)/NH4+ remained below 0.11 after the start-up period, which further confirmed the long-term stability of SNAD process. Results of polymerase chain reaction (PCR), qualitative PCR, and scanning electron microscopic (SEM) analysis of sludge samples confirmed the co-existence and enrichment of AOB, anammox bacteria and denitrifying bacteria in the reactor and biofilm formation on to the carriers. (C) 2015 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.biortech.2015.02.064
http://hdl.handle.net/11536/124756
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2015.02.064
期刊: BIORESOURCE TECHNOLOGY
Volume: 190
起始頁: 480
結束頁: 486
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