Waste water treatment process employs ultrasound to disinfect or reduce bacterial growth in fluid and to clean or disinfect membrane used for subsequent filtration

摘要

Waste water treatment process disinfects and/or reduces bacterial growth in fluid using ultrasound, and by membrane filtration (34). The membrane (36) surface through which the fluid is passed, is disinfected and/or cleaned using ultrasound. Waste water treatment process disinfects and/or reduces bacterial growth in fluid using ultrasound, and membrane filtration (34). The membrane (36) surface through which the fluid is passed, is disinfected and/or cleaned using ultrasound. The process comprises: (a) measuring initial pH and density; (b) buffering (20) the fluid; (c) disinfection or reduction of bacterial growth; (d) carrying out a density and/or measurement; (e) concentrating (30) the fluid in a circuit and sending to the membrane filter which separates out valuable material supplied for production; and (f) partly extracting fluid from the process, and optionally, supplying some to a production line. An Independent claim is also included for the treatment plant.