Performance and characterization of a newly developed self-agitated anaerobic reactor with biological desulfurization

Takuro Kobayashi, Gyokuyu Ri

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The continuous operation of a newly developed methane fermentation reactor, which requires no electricity for the agitation of the fermentation liquid was investigated, and the extent of the biological desulfurization was monitored. Inside the reactor, the continual change in the liquid level and the self-agitation, occurring between 5 and 16times every day, distributed the organic load near the inlet port of the reactor, as well as providing a nutrient supply to the hydrogen sulfide oxidizing bacteria. At different CODCr loading rates (5, 7, 10kgm3d-1), the reactor achieved a biogas production yield of 0.72-0.82m3g-1-TS, a CODCr reduction of 79.4-85.5% and an average of 99% hydrogen sulfide removal. This investigation demonstrated that the self-agitated reactor is comparable in digestion performance to the completely stirred tank reactor (CSTR) investigated in a previous study, and that the desulfurization performance was significantly enhanced compared to the CSTR.

Original languageEnglish
Pages (from-to)5580-5588
Number of pages9
JournalBioresource Technology
Volume102
Issue number10
DOIs
Publication statusPublished - 2011 May 1

Keywords

  • Biological desulfurization
  • Low energy
  • Methane fermentation
  • Self-agitation

ASJC Scopus subject areas

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

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