ADSORPTION TYPE SEWAGE PURIFICATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a sewage purification method which enables repeated use of a purification unit by photocatalytic reactions having a sufficient purification speed and using sunlight.

SOLUTION: In the adsorption type sewage purification method, sewage is supplied to the upper ends of a tabular photocatalyst and an adsorbent-carrying porous body disposed so as to receive sunlight in a state declined at an angle (θ) of≥10°to the ground, by the amount equal to or lower than a removal limit capacity, and the sewage is dropped from a dropping port installed at the upper end of the porous body at a flow rate of K2(1-cosθ) per one dropping port (K2is the maximum value of water feed rate per one dropping port when dropping the sewage from the upper end dropping port in a state vertically erecting the porous body) and recovered from the lower end of the porous body.

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