AEROBIC TREATMENT TANK

摘要

PROBLEM TO BE SOLVED: To provide an aerobic treatment tank capable of being prevented from the lowering of treatment capacity accompanied by the deposition of a carrier. SOLUTION: Water 14 to be treated is stored in the aerobic treatment tank 10 and a carrier 16 having microorganisms fixed thereon is charged in the water 14 to be treated. The interior of the treatment tank 10 is divided into compartments 10A and 10B by a flow guide plate 22 and an air diffuser 24 is arranged in the compartment 10A. A rectifying plate 28 is provided under the air diffuser 24 and the deviation of the circulating flow of water to be treated is prevented by the rectifying plate 28.