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Abstract

Two strategies were designed. The early assessment strategy led to algae of Hydrodictyon and Tetraselmis species being chosen as suitable for biomethanation with predicted almost economic performances in a continuous, completely mixed, one-step methane digester without active biomass recycle. A 1 m**3 pilot plant was set up in Lamezia-Terme to scale up the results obtained with Tetraselmis. (Some design data could be computed). The biogas plant, taken alone, meets the basic requirements for economic feasability. The later assessment strategy predicted a possible one order of magnitude increase in performance of the biomethanation of Hydrodictyon in a complex methane digestion system consisting of a percolator, continuous for both the solid and the liquid portion of the reacting medium followed by an upflow anaerobic sludge blanket (UASB). The prediction was verified at the bench-scale level. In all, the results obtained are leading to the formulation of basic laws of microbial ecology, and suggest reliability of industrial processes based on mixed microbial communities even under septic conditions. They point to the potentiality of energy crops as sources for usable forms of energy, and to the feasibility of industrial biogas plants with high performances.

Additional information

Authors: ASINARI DI SAN MARZANO C M, UNIVERSITE CATHOLIQUE DE LOUVAIN, LOUVAIN-LA-NEUVE (BELGIUM);COLLARD F, UNIVERSITE CATHOLIQUE DE LOUVAIN, LOUVAIN-LA-NEUVE (BELGIUM);DUJARDIN E, UNIVERSITE CATHOLIQUE DE LOUVAIN, LOUVAIN-LA-NEUVE (BELGIUM);LEGROS A, UNIVERSITE CATHOLIQUE DE LOUVAIN, LOUVAIN-LA-NEUVE (BELGIUM);NAVEAU H, UNIVERSITE CATHOLIQUE DE LOUVAIN, LOUVAIN-LA-NEUVE (BELGIUM);NYNS E J, UNIVERSITE CATHOLIQUE DE LOUVAIN, LOUVAIN-LA-NEUVE (BELGIUM);SIRONVAL C UNIVERSITE CATHOLIQUE DE LOUVAIN, LOUVAIN-LA-NEUVE (BELGIUM), UNIVERSITE CATHOLIQUE DE LOUVAIN, LOUVAIN-LA-NEUVE (BELGIUM)
Bibliographic Reference: EUR 10014 EN-FR (1985) MF, 143 P., BFR 300, BLOW- UP COPY BFR 715, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989124105900 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en,fr