清华大学学报(英文版)
清華大學學報(英文版)
청화대학학보(영문판)
TSINGHUA SCIENCE AND TECHNOLOGY
2002年
1期
91-94
,共4页
王士柱%何培炯%郝东萍%朱永贝睿
王士柱%何培炯%郝東萍%硃永貝睿
왕사주%하배형%학동평%주영패예
emulsion liquid membrane(ELM)%zinc%acidic waste water%continuous operation%pilot plant
Zn-containing waste water from a viscose staple fiber plant has been treated using the emulsion liquid membrane (ELM) process since 1995. The flow sheet and operating parameters of the ELM process are introduced. After adjusting the membrane composition, changing the emulsion phase ratio, and adding a scrubbing step, the ELM process operated normally without trouble for emulsion splitting and mass transport throughput. The splitter voltage was decreased to 3.55 kV. The zinc concentration of treated waste water was lowered to less than 10 mgL-1. More than 95% of the zinc was recovered and reused.
