Impact of reactor configuration on anammox process start-up: MBR versus SBR
Impact of reactor configuration on anammox process start-up: MBR versus SBR
复制标题
反应器配置对厌氧氨氧化工艺启动的影响：MBR 与 SBR
DOI：
10.1016/j.biortech.2011.10.052
复制
发表时间：
2012-01-01
影响因子：
11.4
通讯作者：
Ren, Nan-Qi
中科院分区：
文献类型：
--
作者：
Tao, Yu;Gao, Da-Wen;Ren, Nan-Qi
Anaerobic ammonium oxidation (anammox) is an energy saving biological nitrogen removal process which was limited to slow growth rate of anammox bacteria during start-up period. This study investigated the start-up of anammox process by a laboratory sequential batch reactor (SBR) for 218 days and subsequently modified the reactor as a membrane bioreactor (MBR) for 178 days. Modification of a SBR as MBR with installation of an external membrane module resulted in acceleration of specific anammox activity by 19 times. The acceleration of specific anammox activity with MBR was further confirmed by starting-up another MBR for a 242 day period. Molecular microbial analyses showed that Candidatus "Brocadia anammoxidans" and Candidatus "Kuenenia stuttgartiensis" were the dominant species in the inocula and biomass developed in the reactor. The start-up with MBR appeared to be more effective than SBR for the enrichment of anammox bacteria due to high sludge retention property of MBR configuration. (C) 2011 Elsevier Ltd. All rights reserved.
