抄録
In this study, characteristics of bacterial affinity to activated carbon (AC) and removal potentiality of TOC by biological activated carbon (BAC) were examined in batch culture experiment. With the desorption procedure of bacteria, ultrasonication for 3 min at 40W followed by vortexing for 10 sec was the favorable condition. The strength of bacterial affinity was estimated by enumeration of the desorbed bacteria from the AC with fluorescense microscope and the residual bacteria on the AC was certified with scanning electron microscope. The order of strength was as follows. Pseudomonas ovalis > Eschrichia coli > Acinetobacter calcoaceticus > Bacillus subtilis > Micrococcus luteus.
In the study of TOC removal, removal efficiency by the five kind of BAC was quite different in the peptone-culture broth as a substrate for bacteria. The removal without BAC system with M. luteus was over 18% . The maximum removal of 43% was obtained from the BAC system with B. subtilis, while in case of the system with M. luteus the minimum removal of 2% was observed.
