Start-up and Nitrogen Removal Performance of DAMOanammox Inoculated with Anaerobic Granular Sludge in MBfR

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Guo, Xiaoting^1 ; Shi, Ying^1 ; Yao, Xiaojing^1

School of Resources and Safety Engineering, Central South University, Changsha

410083, China^1

关键词: Ammonium addition;    Anaerobic granular sludge;    ANAMMOX;    Anammox bacteria;    Archaea;    Microbial analysis;    Nitrogen removal rates;    Removal performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/3/032036/pdf
DOI  :  10.1088/1757-899X/392/3/032036

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This study investigated the rapid start-up of the DAMO-anammox strategy using inoculum of anaerobic granular sludge in MBfR. The results showed that the reactor containing DAMO microorganisms was rapidly and successfully started up after 73 days with only feeding nitrate. Anammox microorganisms were obtained after 1.5-month of ammonium addition. The nitrogen removal rate achieved 603.9 mg N/L/d in this study. Microbial analysis results suggested that the newly discovered DAMO archaea, DAMO bacteria and anammox bacteria were not detected in this enriched culture. The DAMO-anammox process may be carried out by other microbes. This deduction remains to be further established in the future.