超声波-SBR法处理焦化废水的研究

Coking-plant Wastewater Treatment by Ultrasound-SBR Process

采用超声波 -SBR工艺处理焦化废水 ,进水水质为COD 14 2 7mg·L-1,ρ(NH3 -N) 10mg·L-1时 ,超声波预处理2 .5min ,SBR曝气 8h ,搅拌 3h ,再曝气 4h ,沉降 1.5h ,出水COD 6 8.2mg·L-1,ρ(NH3 ) -N 5 1.2mg·L-1,去除率分别达到 95 .4 % ,75 .6 %。

Ultrasound -SBR technique was applied to treat coking - plant waste water with the influent COD 1 427 mg/L, ρ(NH_3-N) 210 mg/L. After treatment with ultrasonic 2.5 min, SBR aeration 8 h, mixing 3 h, re-aeration 4 h and setting 2 h, the effluent was COD 68.2 mg/L, ρ(NH_3-N) 51.2 mg/L, and the removal rate up to 95.4% and 75.6% respectively.