濾過型リアクターによるセルロース系合成廃水の嫌気性消化処理

概要

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Anaerobic digestion of an artificial wastewater containing cellulose powder was done using a cell-recycling bioreactor with a ceramic membrane module. Cellulose removal and gas production were 95-98% and 1.2 l/g・cellulose-fed under cellulose loading rates of about 1.7 g/l・d. Although the microbial cell concentration increased form 5 to 15 g/l after 150 days. fiiltration flux could be held at about 0.4 m^3/m^2・d. Cellulase is bound with or adheres to the surfaces of microbial cells or cellulose, and is retained in the bioreactor . Thus, the continuous bioreactor system could be operated satisfactorily for a long (150 d) term.
1989-07-25