Study on the Improved A2/O Process Used in Swine Wastewater Treatment

An experiment of treating anaerobic fermented hog pen sewage by improved A2/O reactor was carried out to study the pollution mater reducing rate during the course of combine domestication. After anaerobic fermented cultivation course of hog pen sewage by A2/O technics, tHought the treatment system's parameters included deLiquescent oxygen (DO), hydrauLics reside time (HRT) to study the system's treatment effect. The experiment results indicated the A2/O reactor can successfully run with the firstly independent and secondly united start mode after sixty days. Treated by A2/O reactor the water's COD and NH3-N removal rate could reach 90% and 95% while the PO4 3-was 83%. SS and turbidity both had reduced approximately 90% in the effluent.