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 |
Appears in Collections: | Articles |