内循环好氧三相流化床处理造纸中段废水  

Application of the inter-loop aerobic three-phase fluidized bed to the treatment of middle-stage effluent in paper mills

作　　者：疏明君[1] 李友明[1] 谢澄[1] 陈中豪[1] 

机构地区：[1]华南理工大学造纸与污染控制国家工程中心,广东广州510641

出　　处：《工业水处理》2002年第5期24-27,共4页Industrial Water Treatment

摘　　要：本实验采用内循环好氧三相流化床处理造纸中段废水 ,经过一段时间的驯化 ,获得了稳定的出水。COD去除率保持在 6 5 %以上 ,系统对进水污染负荷的变化具有较大的承受能力。出水Cl-的浓度有所增加 ,说明驯化后的微生物可能对有机氯化物具有一定的降解作用。水气比在 1/12 0至 1/14 0之间可获得最好的COD去除效果。后续进行絮凝处理后 ,出水COD降为 6 0～ 80mg/L ,BOD为 5 0～ 6 0mg/L ,色度为 10 0～ 15 0CU ,挥发性酚的质量浓度小于 0 .0 2 6 5mg/L。The treatment of middle stage effluent in paper mills with inter loop aerobic three phrase fluidized bed is carried out. After a period of domestication, the characters of discharged water are stable. The COD removal rate keeps higher than 65%, which indicates that the system could sustain the variation of input load. The increase of in effluent implied the biofilm could biodegrade chloroaromatic components in certain degree after domestication. The best ratio of liquid gas should be controlled between 1/120 and 1/140. The outflow of fluidized bed is treated by flocculation, and the final drain's COD is 60～80 mg/L, BOD is 50～60 mg/L,chroma is 100～150 CU ,volatility hydroxybenzene is less than 0.026 5 mg/L.

关 键 词：内循环好氧三相流化床 中段废水 COD 去除率 有机氯化物 水气化 废水处理 

分 类 号：X793[环境科学与工程—环境工程]