METHOD AND DEVICE FOR TREATING PURIFIED WATER WITH A HIGH DEGREE

摘要

PURPOSE:To obtain good-quality service water not contg. the substances such as musty matter, ammonia, trihalomethane precursor and trihalomethane which have heretofore been incapable of being removed by using this compact high degree treating device. CONSTITUTION:A biological reaction tank 5 provided with powdered activated carbon injector 2 and an ozonized air inlet pipe 3 is set before a membrane separator 6 to constitute the high degree treating device, and the ozonized air is intermittently introduced into the device.