SEWAGE TREATMENT APPARATUS AND SOLID-LIQUID SEPARATION MEMBRANE MODULE

摘要

PPROBLEM TO BE SOLVED: To provide a sewage treatment apparatus which effectively diminishes clogging of a membrane surface while reducing operation cost and frequency or troublesomeness of maintenance control compared with a conventional sewage treatment apparatus. PSOLUTION: The sewage treatment apparatus S3 has a reaction tank 3 for treating a sewage 2 flowing in by active sludge, a solid-liquid separation flat membrane 5 arranged in the reaction tank 3, a vibrator 12 for generating an ultrasonic wave U, and a sonic-wave guide part 11 which is arranged as to extend along the membrane surface of the solid-liquid separation flat membrane 5 and also transmits the ultrasonic wave generated by the vibrator 12. PCOPYRIGHT: (C)2011,JPO&INPIT