The purpose of this plan is to develop of a set lower operation and maintenance costs, low operating technology and low consumptive material of automation sewage treatment and recycling system. The effluent quality of treatment and recycling system can meet domestic water demand and to achieve sustainable use of water resources. Overall, the membrane filtration system combine CFSBR can effectively treat carbon, nitrogen phosphorus and other nutrients in wastewater that effluent can be meet water quality regulations. In monitoring technology of water level, the result shows in the range of 49 ~ 100cm of the water level the measurement error is 0.2 cm. The dissolved oxygen virtual monitoring technology results show that the use of ORP monitoring information can effectively estimate the DO concentration (the error percentage is 11.38%).The fixed operation results show the CFSBR effluent COD concentration is 15mg /L~ 53mg/L and SS concentration is 10 mg /L ~ 94mg/L. After the membrane filtration system, the effluent COD and SS concentration of filtration system respectively are 13mg /L~ 41mg/L and 2 mg /L ~ 18mg/L. The CFSBR with fixed-time operation and use the monitoring information of pH、ORP and water level that the effluent can meet water quality regulations. Combined with a membrane filtration system to become MCFSBR processing system, the effluent quality achieves water recycling and reuse of water quality standards.

automatic monitoring,dissolved oxygen control,automatic control, wastewater treatment,membrane filtration system