Effect of feed starvation on side-stream anammox activity and key microbial populations

Petra J. Reeve, Irina Mouilleron, Hui Ping Chuang, Ben Thwaites, Kylie Hyde, Nirmala Dinesh, Joerg Krampe, Tsair Fuh Lin, Ben van den Akker

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The anaerobic ammonium oxidation (anammox) process is widely acknowledged to be susceptible to a wide range of environmental factors given the slow growth rate of the anammox bacteria. Surprisingly there is limited experimental data regarding the susceptibility of the anammox process to feed starvations which may be encountered in full-scale applications. Therefore, a study was established to investigate the impact of feed starvations on nitritation and anammox activity in a demonstration-scale sequencing batch reactor. Three starvation periods were trialled, lasting one fortnight (15 d), one month (33 d) and two months (62 d). Regardless of the duration of the starvation period, assessment of the ammonia removal performance demonstrated nitritation and anammox activity were reinstated within one day of recovery operation. Characterisation of the community structure using 16S rRNA and functional genes specific for nitrogen-related microbes showed there was no clear impact or shift in the microbial populations between starvation and recovery phases.

Original languageEnglish
Pages (from-to)121-127
Number of pages7
JournalJournal of Environmental Management
Volume171
DOIs
Publication statusPublished - 2016 Apr 15

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Waste Management and Disposal
  • Management, Monitoring, Policy and Law

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