Rapid start up anammox process through a new strategy with inoculating perchlorate reduction sludge and a small amount of anammox sludge

Tuo Wang, Yunman Liu, Jianbo Guo*, Yuanyuan Song, Jidong Gu, Jing Lian, Caicai Lu, Yi Han, Haibo Li, Yanan Hou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The slow start-up of anammox process has been a big obstacle for its engineering application. In this study, a new strategy was adopted to start up anammox by mixing perchlorate reduction sludge (PRS) and anammox sludge with 50:1 vol ratio, and the mechanism in the start-up process was explored. The results showed that anammox process was started up successfully after 41 days. During the operation process, pH value increased from 7.88 ± 0.14–8.06 ± 0.11, extracellular polysaccharides (PS) increased from 10.56 to 24.45 mg·(g VSS)−1, C6-HSL increased by 0.061 μg·(g VSS)−1, and C8-HSL decreased by 0.068 μg·(g VSS)−1. These changes in favor of anammox were attributed to the contribution of PRS and the guidance of anammox sludge. The bacterial ecology evolved towards anammox. This study provided a new idea for the anammox start-up in practical application.

Original languageEnglish
Article number107784
JournalBiochemical Engineering Journal
Volume164
DOIs
StatePublished - 15 Dec 2020
Externally publishedYes

Keywords

  • Anammox
  • Community structure
  • Niche
  • Perchlorate reduction
  • Start up

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