An anaerobic migrating blanket reactor (AMBR) was seeded with flocculent biomass from a digester and fed a substrate consisting of volatile fatty acids and sucrose to study granulation. After three months of operation, a mature granular blanket developed in the reactor. Moreover, fibers of approximately 1 cm long had become prevalent in the AMBR. Scanning electron microscopy (SEM) and light microscopy revealed a very dense structure consisting of bundles of filaments resembling Methanosaeta cells. Further studies with fluorescence in-situ hybridization (FISH), showed that Methanosaeta concilii was the predominant microorganism in these fibers.
Methanosaeta fibers in anaerobic migrating blanket reactors
L.T. Angenent, D. Zheng, S. Sung, L. Raskin; Methanosaeta fibers in anaerobic migrating blanket reactors. Water Sci Technol 1 February 2000; 41 (4-5): 35–39. doi: https://doi.org/10.2166/wst.2000.0422
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