Article citationsMore>>

R. Sierra and G. Lettinga., “The Role of Aromatic Structure on Methanogenic Toxicity,” Medical Faculty Land Boww Rijks University of Gent (Belgium), Vol. 4, No. 4b, 1989, pp. 1437-1474

has been cited by the following article:

• TITLE: The Effect of the Monosubstituted Benzenes Functional Groups on the Inhibition of Methane Gas Biosynthesis

  AUTHORS: Kalombo Kayembe, Lolofo Basosila, Pius T. Mpiana, Lisika Makambo, Pole C. Sikulisimwa, Damien S. T. Tshibangu, Dorothée D. Tshilanda, Rigobertine K. Tati

  KEYWORDS: Monosubstituted Aromatics; Methane Gas; Biosynthesis; Inhibition; Digested Pig Manure

  JOURNAL NAME: Journal of Sustainable Bioenergy Systems, Vol.2 No.4, December 25, 2012

  ABSTRACT: Aromatic compounds are inhibitors of methane biosynthesis in anaerobic treatment of solid wastes and industrial effluents. Anaerobic treatment of solid wastes and industrial effluents may be limited by the methanogenic bacteria inhibition exerted by these types of compounds, the production of biogas is not possible and the organic matter contained in the effluent is not reduced. These effluents poured in the nature can be the basis of the pollution. The objective of this study is to evaluate the effect of monosubstituted aromatic compounds functional groups on the methanogenic inhibition. The toxicity to acetoclastic methanogenic bacteria has performed in serum flasks, utilizing digested pig manure as inoculums, by measuring methane production. The nature of aromatic functional groups was observed to have a profound effect on the toxicity of the monosubstituted aromatics. Among the monosubstituted aromatic, the chlorobenzene was the most toxic with 50% of inhibition occurring at the concentration of 30.08 mg/l. In contrast, benzoic acid is the least inhibitory with IC50 of 2515.20 mg/l. The partition coefficient octanol/water (logPoct), an indicator of hydrophobicity, had a significant correlation with the methanogenic toxicity.