Advanced wastewater treatment method and advanced treatment equipment

摘要

PPROBLEM TO BE SOLVED: To provide an advanced treatment method for wastewater capable of efficiently obtaining treated water whose COD and TOC effectively reduced in a simpler manner, and an advanced treatment apparatus for carrying out the same. PSOLUTION: The treatment method for wastewater has a first process (1) for injecting ozone gas in wastewater to perform the ozone treatment of wastewater, a second process (2) for biologically treating the treated water subjected to ozone treatment and a third process (3) for injecting the ozone gas in the biologically treated water to perform the ozone treatment of the treated water. The high-degree treatment apparatus performing this treatment method is also disclosed. PCOPYRIGHT: (C)2003,JPO