液膜法处理含锌废水的研究

Studies on Liquid-Membrane Treatment of Zincic Wastewater

研究了以HS－1和煤油作膜相，D2EHPA为流动载体，1mol／LH2SO4为内水相所组成的乳化液膜处理含锌废水，测定了表面活性剂种类和用量、乳水比、油水比对除锌率的影响，结果表明：当ρ（HS－1）＝0．015g／mL，油水比为4：3，乳水比为7：30，混合时间为25min时，除锌率可达97％以上。

The treatment of zincic wastewater from aqueous solution with emulsion-type liquid membrane containing HS-1 (s urfactant)-kerosens as membrane phase, D2EHPA as carrier of flow and aqueous solution of sulfuric acid(1mol/L)as inner-aqueous phase has been investigated. The effects of various types of the surfactant and surfactant oil/outer water, oil/inner water on removal rate of zinc were examined Experimental results indicate that over 97% removal of zinc compounds can be efficiently achieved in this process. The optimum treatment conditions are: 0.015g/mL HS-1; oil/inner water 4:3; oil/outer water 7:30; 20min reaction time.