草浆废液的超滤浓缩  

Concentration of Nonwood Pulping Spent Liquor by means of Ultrafiltration

作　　者：潘学军[1] 谢来苏[1] 隆言泉[1] 

机构地区：[1]天津轻工业学院

出　　处：《中国造纸》1995年第3期27-30,共4页China Pulp & Paper

基　　金：轻工业科技发展基金

摘　　要：通过草浆废液的超滤浓缩实验，测定了荻苇亚硫酸氢镁红液、麦草Ｓｏｄａ－ＡＱ黑液和稻草硫酸盐黑液超滤浓缩的固形物上限浓度分别为２６．１２％、２７．３３％和３１．５２％。在废液浓度较低时，由于水通量大，超滤浓缩能耗低的优势尤为明显。超滤用于废液的预浓缩具有显著的经济效益。Concentration of nonwood pulping spent liquor by means of ultrafiltration was studied. The maximum solid contents that could be achieved by ultrafiltration concentration, were determined as 26.12%, 27. 33% and 31. 52% separately. The results showed that the power consumption of ultrafiltration was 80%～90% lower than that of evaporation for removing the same amount of water. It was concluded that the ultrafiltration preconcentration combining with multi-effect evaporotion was a power-saving concentration procedure for black liquor.However, it was an uneconomic and very difficult process to concentrate the nonwood pulping spent liquor to high solid content by ultrafiltration alone.

关 键 词：草浆 废液 超滤 浓缩 动力消耗 造纸工业 

分 类 号：X793.03[环境科学与工程—环境工程]