ABR-SBR法处理草浆造纸中段废水试验研究

Experimental study on straw pulp gray water treatment by ABR-SBR

针对草浆造纸中段废水 ,进行了ABR、SBR及ABR SBR组合处理工艺的研究 ,结果表明 :ABR的HRT为 6h时 ,废水可生化性由 0 2— 0 2 5增加到 0 4— 0 5 ;SBR最佳HRT为 8h ,单独运行 ,COD去除率 6 5 %左右 ;ABR SBR组合工艺中SBR处理效果明显提高 ,COD去除率达 80 %左右 ,且组合工艺处理效果好 ,COD和BOD5去除率达 90 %左右 ,抗冲击负荷能力强。

This paper presents the research work of treating straw pulp gray water by ABR, SBR and combined processing method of ABR-SBR Results have shown: as the HRT is 6 h, ABR raises the biodegradability (BOD 5/COD)value from 0 2-0 25 to 0 4-0 5; the optimal HRT of SBR is 8 h, and when running solely, SBR reduces 65% of COD; in the ABR-SBR combined processing method, the treatment effect of SBR markedly improves, the COD removal rate is about 80% The whole combined processing system can remove 90% of COD and BOD 5, and the system has powerful resistance to impact load