KAGAKU KOGAKU RONBUNSHU
Online ISSN : 1349-9203
Print ISSN : 0386-216X
ISSN-L : 0386-216X
Resistance to Permeate Flux in the Filtration of Methanogenic Waste
Yasutoshi ShimizuMinoru RokudaiSachio TohyaEisuke KayawakeTetsuo YazawaHiroshi TanakaKiyohisa Eguchi
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1988 Volume 14 Issue 6 Pages 818-824

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Abstract

Before filtration tests to apply ceramic membranes to anaerobic fermentation membrane bioreactors, the suspended solids in anaerobic waste were characterized as the feed to the membranes. The anaerobic waste was made from anaerobic digestion of a synthesized waste containing glucose and peptone. The suspended solids were found to consist mainly of methanogenic bacteria and these metabolites. They were spheres 0.05μm in diameter, colli (0.21 μm in diameter) and rods (0.20.7μm ×12μm). When these particles formed a packed layer on the membrane by filtration, particles changed shape due to the filtration pressure. Specific filtration resistance was governed by the salt concentration. The resistance increased with increasing salt concentration. The results were explained by the DLVO theory.

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© by THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN
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