High-rate anaerobic treatment of alcoholic wastewaters

L. Florencio, James A Field, G. Lettinga

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Modern high-rate anaerobic wastewater treatment processes are rapidly becoming popular for industrial wastewater treatment. However, until recently stable process conditions could not be guaranteed for alcoholic wastewaters containing higher concentrations of methanol. Although methanol can be directly converted into methane by methanogens, under specific conditions it can also be converted into acetate and butyrate by acetogens. The accumulation of volatile fatty acids can lead to reactor instability in a weakly buffered reactor. Since this process was insufficiently understood, the application of high-rate anaerobic reactors was highly questionable. This research investigated the environmental factors that are of importance in the predominance of methylotrophic methanogens over acetogens in a natural mixed culture during anaerobic wastewater treatment in upflow anaerobic sludge bed reactors. Technological and microbiological aspects were investigated. Additionally, the route by which methanol is converted into methane is also presented.

Original languageEnglish (US)
Pages (from-to)409-416
Number of pages8
JournalBrazilian Journal of Chemical Engineering
Volume14
Issue number4
StatePublished - Dec 1997
Externally publishedYes

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Wastewater treatment
Methanogens
Methanol
Wastewater
Methane
Volatile fatty acids
Volatile Fatty Acids
Butyrates
Acetates

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

High-rate anaerobic treatment of alcoholic wastewaters. / Florencio, L.; Field, James A; Lettinga, G.

In: Brazilian Journal of Chemical Engineering, Vol. 14, No. 4, 12.1997, p. 409-416.

Research output: Contribution to journalArticle

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