Characterzation of Pile Fabric Yeast Carriers for Trearment of Wastewater from a Plum Production Facility

概要

論文の詳細を見る
BF-T9P, a nonwoven fiber material, can be used as an effective biomass carrier for yeast(UY7 strain) in the treatment of wastewater generated during the production of seasonedsalty plums. However, the cost is a major problem in small and medium scale companies.We investigated the feasibility of using a pile fabric biomass carrier that can be producedat low cost with existing equipment. The TOC removal rate of E-pile, a polyester pilefabric, was as high as that of the nonwoven material under a volumetric loading rate of 4to 15kg-TOC/m3/d. A packing ratio of 0.17 m3-carrier/m3-reactor was sufficient for TOCremoval if the volumetric loading rate was less than 8kg-TOC/m3/d. In a system using abiomass carrier, the decrease in TOC removal caused by a temperature drop from 25 to5℃ was slower and the increase in TOC removal upon raising the temperature to 10℃was faster, compared with a system without a biomass carrier. These results may beattributed to the stable retention of yeast in the reactor by entrapment inside the biomasscarrier.
2010-06-15