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  • 1
    ISSN: 1573-0972
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Description / Table of Contents: Résumé Depuis 1981, l'Administration Générale Belge de la Coopération au Développement (AGCD) a confié à l'Université Catholique de Louvain (Unité de Génie Biologique: Professeurs E.-J. Nyns et H. Naveau) la gestion d'un projet de développement de la biométhanisation au Burundi. C'est d'abord l'établissement d'une cellule de base à Bujumbura destinée à devenir permanente, ensuite, la formation de stagiaires homologues Burundais et l'implantation de 10 digesteurs méthaniques par le projet Belgo-Burundais qui ont contribué de manière décisive au développement de la biométhanisation au Burundi. Depuis 1984, plus de 120 digesteurs méthaniques nouveaux ont été construits dans le cadre de divers projets temporaires régionaux, allemand et chinois, pour ne citer que ceux-là. Ces divers projets temporaires sont désormais coordonnés au sein de la Direction Générale de l'Energie du Ministère Burundais de l'Energie et des Mines qui, grâce à la cellule de base, en assure la continuité. Le projet Belgo-Burundais assure aujourd'hui le suivi scientifique et technique de ces digesteurs. Il collabore à l'étude de leur conception. Il assure la promotion de l'utilisation des effluents digérés, la formation de stagiaires et l'étude des outils d'utilisation du biogaz.
    Notes: Summary Since 1981, the Belgian General Administration for Development and Cooperation (BADC) has granted the Catholic University of Louvain (Unit of Bioengineering: Professors E.-J. Nyns and H. Naveau) a project aimed at implementing biomethanation in Burundi. Its objective is to establish a centralized unit in Bujumbura, which is meant to become permanent, as well as to train Burundese staff and technicians in the construction of 10 methane digesters by the Belgian-Burundese project which have already contributed in a decisive way to the success of biomethanation in Burundi. Since 1984, more than 120 new methane digesters have been constructed within the frame of several temporary regional projects, German and Chinese, to quote but two. These various temporary projects are presently coordinated by the General Directorate for Energy of the Burundese Ministry of Energy and Mines, which, thanks to the centralized unit, ensures continuity. The Belgian-Burundese project ensures today the scientific and technical follow-up of these digesters. It is involved in the study of their design. It ensures the promotion of the end uses of digested effluents, the extension services and the study of appropriate devices for biogas end use.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Biotechnology letters 1 (1979), S. 71-74 
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract A new parameter, QCH4(F420), is proposed to determine the potential methanogenic activity in the mixed microbial communities of anaerobic digestors. It is based on the particular fluorimetric properties of F420, a coenzyme common to and specific for methanogenic bacteria.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Biotechnology letters 3 (1981), S. 623-628 
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Fluorimetric monitoring of potential methanogenic activity (coenzyme F420) of bacterial community from methane digesters is until now resstricted to a few particular cases because severe interference frequnetly occurs, or the concentration is too low when digesting highly diluted wastes. A method of purification and/or concentration, based on purification of the cellular fraction of the sample by centrifugation and washing, is proposed. In biomethanation of spent liquor from citric acid fermentation, a typical case where interference largely obscures the F420 fluorescence signal, precision is shown to be better than ± 5% (confidence interval [t.05 (3)]) for F420 concentration down to 200 nM, and the detection limit is below 10 nM.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Biotechnology letters 5 (1983), S. 7-12 
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Any complex substrate biomass can be characterised by its “fermentation profile”, i.e. a complex substrate biomass, in the presence of an ubiquitous microbial mixed culture and under given environmental conditions,ferments readily in mainly only one unique way. This micro-ecological model axiom is substantiated by the study of non-sterile fermentations of two complex substrate biomasses, the algae Hydrodictyon and Tetraselmis, as a function of various environmental conditions.
    Type of Medium: Electronic Resource
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