Stoichiometric variation and loading capacity of a high-loading anammox attached film expanded bed (AAEEB) reactor

Yanlong Zhang, Haiyuan Ma, Rong Chen, Qigui Niu, Yu You Li

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The nitrogen loading rate (NLR) of an anammox attached film expanded bed (AAFEB) reactor was increased from 5.0 to 60.0 gN/L/d. During the stable operational period, the TN removal efficiency maintained at 87.3 ± 2.5%, and a maximum nitrogen removal rate (NRR) of 44.9 ± 0.3 gN/L/d was achieved. Overload resulted in the sharp deterioration of reactor performance, the ratio of (Food/Microorganism)/SAA should be maintained at lower than 66 ± 7% to ensure the stable operation of the AAFEB reactor. New stoichiometric equations for the anammox process under the low NLR condition (5.0 gN/L/d) and the high NLR condition (50.0 gN/L/d) were proposed. The quantitative SAA-cytochrome heme C relationship was established for the first time that providing a simple way for monitoring the reactor performance. Substrate tolerance ability was significantly increased that proving the stability of the AAFEB reactor was continuously enhanced during the stable operational periods.

Original languageEnglish
Pages (from-to)130-140
Number of pages11
JournalBioresource Technology
Volume253
DOIs
Publication statusPublished - 2018 Apr

Keywords

  • AAFEB
  • Anammox
  • Heme C
  • Process performance
  • Stoichiometric equations
  • Tolerance ability

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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