Treatment of polyacrylamide wastewater by powder activated carbon treatment process
PACT工艺处理PAM生产废水的实验研究

Powder activated carbon treatment (PACT) process was used to treat polyacrylamide wastewater pretreated by attapulgite. The effect of powder activated carbon (PAC) addition on activated sludge system was investigated, at the same time, the influence of PAC addition amount, aeration time and hydraulic retention time (HRT) on the removal rate of pollutants were also discussed. The experimental results showed that the adding of PAC could increase DO utilization efficiency, improve sludge settling property and enhance the removal efficiency of organic matter. When the addition amount of PAC was 500 mg/L and aeration time was 10 h, the removal rates of COD, BOD5 and AM were 80.8%, 83.8% and 84.2%, respectively.