Ye Lihong, Li Dong, Zhang Jie, Zeng Huiping
a Key Laboratory of Water Science and Water Environment Recovery Engineering , Beijing University of Technology , Beijing , People's Republic of China.
b State Key Laboratory of Urban Water Resource and Environment , Harbin Institute of Technology , Harbin , People's Republic of China.
Environ Technol. 2018 Dec;39(23):3088-3095. doi: 10.1080/09593330.2017.1375016. Epub 2017 Sep 19.
In this study, successful start-up of the anaerobic ammonium oxidation (anammox) process in a sequencing batch reactor (SBR) was achieved by seeding mixed activated sludge which included aerobic sludge, anaerobic sludge, simultaneous partial nitrification, anammox and denitrification (SNAD) sludge, and anammox sludge with low activity at a 2200:2100:5:2 volume ratio. On day 15, the effective anammox activity was attained in SBR, with the specific total nitrogen removal rate (SRR) of 0.214 gNg VSSd. The total nitrogen removal rate (NRR) increased to 230 gNm d by gradually reducing the setting time to 10 min. With the nitrogen loading rate (NLR) up to 506 gNm d, the total NRR of the SBR reached 433 gNm d during stationary phase. Candidatus Brocadia was detected as predominant functional microbes in the anammox SBR. The results demonstrated the feasibility of seeding mixed activated sludge to start-up an anammox SBR by settling option.
在本研究中，通过以2200:2100:5:2的体积比接种混合活性污泥（包括好氧污泥、厌氧污泥、同步部分硝化、厌氧氨氧化和反硝化（SNAD）污泥以及低活性厌氧氨氧化污泥），在序批式反应器（SBR）中成功启动了厌氧氨氧化过程。第15天，SBR中获得了有效的厌氧氨氧化活性，特定总氮去除率（SRR）为0.214 gN/g VSS/d。通过将沉降时间逐渐缩短至10分钟，总氮去除率（NRR）提高到230 gN/m³/d。当氮负荷率（NLR）高达506 gN/m³/d时，SBR在稳定期的总NRR达到433 gN/m³/d。在厌氧氨氧化SBR中检测到“Candidatus Brocadia”作为主要功能微生物。结果证明了通过沉降方式接种混合活性污泥启动厌氧氨氧化SBR的可行性。
