DRAINAGE WATER-TREATING METHOD AND DRAINAGE WATER-TREATING APPARATUS

摘要

Drainage water containing an organofluorine compound is introduced into a micro-nanobubbling tank (1) wherein a microorganism is added thereto from a microorganism tank (61) while a micro-nanobubbling auxiliary agent is added thereto from an auxiliary agent tank (50). Further, a nutrient is added thereto from a nutrient tank (52) and micro-nanobubbles are generated thereinto by a micro-nanobubbling machine (23), thereby giving treated water. This treated water is fed from the micro-nanobubbling tank (1) to an active carbon column (4) and then the above-described organofluorine compound contained in the treated water is decomposed by the microorganism as described above.