摘要
试验采用A-倒置A2/O工艺,试验结果表明：当水温为28~30℃,SRT为10 d时,正交试验较优运行参数为Q比=6∶4、HRT=10 h、DO=2.5 mg/L、内回流比r=1、外回流比R=0.8,此时COD平均去除率为84.6%,NH3-N平均去除率为98.4%,TN平均去除率为68.8%,出水COD、NH3-N和TN浓度稳定达到GB18918-2002一级A标准。
The experiment reversed by A-inverted A2/O process,which showed that： at the temperature of 28~30 ℃ and SRT=10 d,the optimum operation parameters were HRT=10 h,Qrate=6：4,DO= 2.5 mg/L,r=1,R=0.8.At this time,the average removal rate of COD and TN were 84.6 % and 68.8 % respectively,the average removal rate of NH3-N was 98.4 %.Effluent concentration of COD,TN,NH3-N was sabilized at the level A of GB18918-2002.
出处
《广东化工》
CAS
2013年第3期108-109,98,共3页
Guangdong Chemical Industry
