水解酸化/SMBR处理含PVA退浆废水的研究  

Study on Combined Process of Hydrolytic Acidification and SMBR for Treatment of PVA-containing Desizing Wastewater

作　　者：刘浩[1] 王军[1] 奚旦立[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《中国给水排水》2007年第21期98-101,共4页China Water & Wastewater

摘　　要：采用水解酸4E／SMBR工艺处理含PVA退浆废水。结果表明，当进水COD为1000mg／L左右、BOD5／COD值为0．15～0．20时，该工艺对COD的平均去除率在95％左右，其中SMBR的贡献为75％左右；当水解酸化池的水力停留时间为20、16、10h时，对COD的去除率分别为20％、18％和13％，其SMBR中最大COD有机负荷分别为0．33、0．29和0．20kgCOD／（kgVSS·d）；采用水洗＋酸洗＋碱洗的方式对膜进行清洗，效果最好，可使膜通量恢复到新膜的92％。The combined process of hydrolytic acidification and SMBR was used to treat PVA-containing desizing wastewater. The results show that when the influent COD is about 1 000 mg/L and the BOD5/COD is 0. 15 to 0.20, the total removal efficiency of COD is more than 95%, of which 75% is attributed to the SMBR. When HRT of the hydrolytic acidification stage is 20 h, 16 h and 10 h respectively, the removal rate of COD is 20% , 18% and 13% , and the maximum COD loading in the SMBR is 0.33, 0.29 and 0.20 kgCOD/（ kgVSS · d） respectively. Water/HCl/NaOH is the best method of cleaning the fouled membrane, and the membrane flux can be recovered to 92% of new membrane.

关 键 词：含PVA退浆废水 水解酸化 膜生物反应器 

分 类 号：X703[环境科学与工程—环境工程]