Two-phase anaerobic treatment system for fat-containing wastewater

Sang Hyoun Kim, Sun Kee Han, Hang Sik Shin

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

This study was conducted to investigate the feasibility of a two-phase anaerobic treatment system for fat-containing wastewater. The two-phase system was composed of a continuously stirred tank reactor for acidogenesis and an upflow anaerobic sludge blanket (UASB) reactor for methanogenesis. Its performance was compared with a conventional single-phase system of a UASB reactor treating synthetic wastewater containing major long-chain fatty acids (LCFAs). LCFAs did not cause any significant problem up to the LCFA mixture loading rate of 1.21kg LCFA-COD m-3 day-1 (3500 mg LCFA-COD dm-3) in both systems. However, the efficiency of the single-phase system deteriorated at loading rates above 1.38 kg LCFA-COD m-3 day-1 (4000mg LCFA-COD dm-3), while that of the two-phase system was still satisfactory. More than 19.2% of LCFAs were degraded and 11.5% of unsaturated LCFAs were saturated in the acidogenesis of the two-phase system, which led to the enhanced specific methane production rate and the reduced scum layer of the subsequent UASB reactor.

Original languageEnglish
Pages (from-to)63-71
Number of pages9
JournalJournal of Chemical Technology and Biotechnology
Volume79
Issue number1
DOIs
Publication statusPublished - 2004 Jan 1

Fingerprint

Waste Water
Oils and fats
Fatty acids
fat
Wastewater
Fatty Acids
fatty acid
Fats
wastewater
Sewage
sludge
Saturated fatty acids
anaerobic treatment
Methane
methanogenesis
methane
reactor

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Waste Management and Disposal
  • Pollution
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

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Two-phase anaerobic treatment system for fat-containing wastewater. / Kim, Sang Hyoun; Han, Sun Kee; Shin, Hang Sik.

In: Journal of Chemical Technology and Biotechnology, Vol. 79, No. 1, 01.01.2004, p. 63-71.

Research output: Contribution to journalArticle

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