WASTEWATER TREATMENT METHOD AND APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a wastewater treatment method and apparatus which enables the efficient removal of hardly decomposable organic substances in the wastewater.

SOLUTION: The wastewater treatment apparatus 10 includes a fluidized-bed bioreactor 12 for treating the wastewater containing the hardly decomposable organic substances biologically with organism-deposited carriers 18, and a flocculation-separation tank 14 disposed downstream of the fluidized-bed bioreactor 12 for flocculating and separating the hardly decomposable organic substances by adding a flocculating agent to the treated water obtained in the fluidized-bed bioreactor 12.

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