フェノールを吸着した活性炭の微生物再生

概要

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To stabilize the biological treatment of phenolic waste water, combined treatment with activated carbon and activated sludge might be effective. This paper describes the biological regeneration of granular activated carbon by activated sludge. When activated carbon which adsorbed phenol wsa added to 0.1 M phosphate buffer (pH 6.9), desorption of phenol was observed and the desorption rate constant was found to be 0.048 min^<-1>. In the presence of activated sludge, desorbed phenol was degraded by the sludge. About 50〜60 percent of the adsorption ability of the fresh activated carbon was recovered by biological treatment (20 hr) and no significant change in adsorption ability of the activated carbon was observed on prolonged aeration. Repeated adsorption and biological regenerations could be achieved satisfactorily. Because of the constant desorption rate of phenol from activated carbon, it was considered to be difficult to accelerate the regeneration rate with an increased concentration of activated sludge.
公益社団法人日本生物工学会の論文
1980-09-25