| 摘要 |
[Objectives] This study was conducted to solve the prominent problems in the treatment of domestic sewage in southern rural areas of China. [Methods] An integrated process treatment mode of anaerobic/anoxic/aerobic moving bed biofilm reactor (A2O-MBBR) was proposed to analyze and study its operating effect and influencing factors. [Results] The A2O-MBBR mode had good COD removal efficiency and nitrogen and phosphorus removal performance, and the water quality index of the effluent met the Class A standard of GB181918-2002. This mode is suitable for treating rural domestic sewage, and has high treatment effects in different operating periods. In spring, the average removal rates of COD, NH4+- N, TN, TP and SS reached (83.53 ± 2.15)%, (89.44 ± 4.97)%, (67.36 ± 18.53)%, (88.22 ± 11.21)% and (91.73 ± 2.25)%, respectively; In the autumn period, the average removal rates of COD, NH4+- N, TN, TP and SS were (83.49 ± 2.64)%, (89.26±9.19)%, (66.05±17.00)%, (87.48 ± 9.68)%, and (91.13 ± 2.35)%. [Conclusions] This study provides theoretical reference and technical support for the popularization and application of A2O-MBBR integrated process. |
