酵母による高酸度、高塩度、高有機性廃水である梅加工廃水処理の検討

概要

論文の詳細を見る
Wastewater generated from the production of seasoned salty plumes contains very highlevels of sugar alcohol, citric acid and sodium chloride with COD, NaCl and pH values of about 120g g/l, 70g/l and 2-3, respectively.For effective treatment of this concentrated wastewater，a lOO-time dilution is typically applied thus requiring a large aeration tank. In this research, a yeast strain(UY7) isolated from a plum-production wastewater treatment plant was shown to effectively cut the TOC component of this high-strength waste. Favorable TOC reductions were achieved with dilutions of only 3 to 10 times prior to biological treatment. The UY7 strain attached readily to the biomass carrier（biofringe） composed of acrylic fiber. In continuous-treatment experiments using a biofringe reactor, with an influent TOC of 14ｇ/l and a 5-time dilution factor, TOC removals of about 40% were successfully obtained with HRTs of 1.0 to 2.5 days.
2007-09-15