水解酸化-复合式膜生物反应器组合工艺处理涤纶碱减量废水的试验研究  

EXPERIMENTAL STUDY ON THE TREATMENT OF WASTEWATER FROM POLYESTER ALKALI-DECREMENT PROCESS BY HYDROLYTIC ACIDIFICATION-HYBRID MEMBRANE BIOREACTOR PROCESS

作　　者：杨期勇[1] 陈季华[1] 张峰[1] 奚旦立[1] 

机构地区：[1]东华大学环境科学与工程学院

出　　处：《环境工程》2005年第4期20-22,38,共4页Environmental Engineering

基　　金：上海市科委重点科技攻关项目(02DZ12096)

摘　　要：采用水解酸化复合式膜生物反应器组合工艺处理涤纶碱减量废水。实验结果表明,本工艺处理效果非常明显,系统出水CODCr为26.6～68.03mgL,系统的CODCr总去除率达到93%～98%,对苯二甲酸的降解率超过94%。水解酸化工艺对苯二甲酸的降解作用很小,降解率为0.23%～6.02%;但对乙二醇的降解作用却非常明显,降解率达到58.94%～71.49%,水解酸化工艺将废水的可生化参数BC提高了0.173～0.227。多孔柔性悬浮填料,一方面,提高了对膜表面的冲刷作用,减少膜表面的沉积层;另一方面,增加了原生动物和后生动物在MBR中的数量,有效地减轻了膜污染。A hydrolytic acidification-hybrid membrane bioreactor process was used in the treatment of wastewatr from polyester alkali-decrement process.The results indicated that the COD_ Cr of effluent was only 26.6～68.03 mg/L and the process was efficient in the total removal of COD_ Cr with 93%～98% and TA with 94%.TA was hardly biodegradable with removal rate between 0.23%～6.02% in hydrolytic acidificaton reactor, but ethylene glycol was readily biodegradable with removal efficiency up to 58.94%～71.49%.Treated by hydrolytic acidification process,the aerobic biodegradability B/C of wastewater had been raised by 0.137～0.227.On the one hand, porous-flexible suspended carrier potentiated the scour over the surface of membrane and decreased the cake on the membrane; on the other hand, it increased the number of protozoa and metazoa in MBR, which played an effective role in fouling control of the membrane.

关 键 词：碱减量 水解酸化 膜生物反应器 多孔柔性悬浮填料 对苯二甲酸 废水处理 水解酸化工艺 碱减量废水 工艺处理 复合式 

分 类 号：X791[环境科学与工程—环境工程]