CAST sectional water inlet synchronous denitrification and dephosphorization strenghthening procedure control device and method
A technology for simultaneous nitrogen and phosphorus removal and process control, which is applied in the field of CAST staged water synchronous nitrogen and phosphorus removal and enhanced process control devices, can solve the problems of high nutrient removal rate and limitations, and reduce the impact and improve performance. , The effect of solving the improvement of operating costs
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[0051] The actual domestic sewage discharged from a family area of a university was used as the experimental object (pH=6.5~7.8, COD=260~350mg / L, TN=60~85mg / L, TP=3.5~10.5mg / L). The selected CAST reactor has an effective volume of 72L, the initial MLSS in the reactor is 3.5-4.0g / L, and the aeration rate is constant at 0.8m 3 / h, the mud age is maintained at about 10d, and the reaction temperature is 23°C. Utilize CAST segmented water inlet to strengthen denitrification and phosphorus removal technology and its process control device, the treated water volume is 24L, and the number of segments is 3 times. The final effluent COD is less than 50mg / L, total nitrogen is less than 10mg / L, and total phosphorus is less than 0.5mg / L , which is lower than the concentration required by the national first-level emission standards.
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