ANAEROBIC FLUIDIZED BED WASTEWATER TREATMENT APPARATUS

PROBLEM TO BE SOLVED: To provide an anaerobic fluidized bed wastewater treatment apparatus capable of stably removing organic matter contained in water to be treated with a high removal rate even when the concentration of the organic matter is lowered.SOLUTION: An anaerobic fluidized bed waste water treatment apparatus of an embodiment has a raw water tank, an organic matter concentration meter, a fluidized bed type reaction vessel, a treated water tank, a treated water supply part, and a control part. The raw water tank stores water to be treated containing organic matter. The organic matter concentration meter is disposed in the raw water tank. The fluidized bed type reaction vessel is provided with a water introduction port for the water to be treated at a lower part thereof, and a water discharge port for treated water from which the organic matter has been removed by bringing the water to be treated and a carrier into contact with each other. The treated water tank stores the treated water. The treated water supply part supplies the treated water to the fluidized bed type reaction vessel. The control part controls the amount of the treat water supplied to the fluidized bed type reaction vessel by the treated water supply part on the basis of the organic matter concentration of the water to be treated measured by the organic matter concentration meter and the amount of the water to be treated supplied to the fluidized bed type reaction vessel.SELECTED DRAWING: Figure 1 【課題】被処理水に含まれる有機物を、その有機物の濃度が低下した場合でも、安定して高い除去率で除去処理を行うことができる嫌気性流動床排水処理装置を提供する。【解決手段】実施形態の嫌気性流動床排水処理装置は、原水槽、有機物濃度計、流動床型反応槽、処理水槽、処理水供給部、制御部を持つ。原水槽は、有機物を含む被処理水を貯留する。有機物濃度計は原水槽に設置されている。流動床型反応槽は、下部に前記被処理水の導水口が備えられ、上部に、前記被処理水と前記担体とが接触することによって有機物が除去された処理水の放水口が備えられている。処理水槽は処理水を貯留する。処理水供給部は、処理水を流動床型反応槽に供給する。制御部は、有機物濃度計にて測定された被処理水の有機物濃度、及び流動床型反応槽に供給される被処理水の量に基づいて、処理水供給部が流動床型反応槽に供給する処理水の量を制御する。【選択図】図１