荷电微孔滤膜对水中达旦黄吸附性能的研究

Adsorption of titan yellow by charged modified microporous membrane

论述了荷电微孔滤膜对水中负电颜料达旦黄的吸附性能。实验证明 ,水的 p H值在 2 .0～ 9.0之间 ,膜对达旦黄的吸附性能不受 p H值的影响 ,但当 p H值大于 9.0时 ,其吸附性能减弱。水中氯化钠不影响膜的吸附性能。一般条件下 ,孔径为 0 .2μm的荷电微孔滤膜对达旦黄的吸附容量为 10 m g/cm3。

The adsorption of titan yellow from water by the charged membrane has been studied. The experimental results show that the membrane has strong adsorption capability over a broader pH range lower than 9. When pH value is higher than 9,the adsorption capability gets weak. Sodium chloride in water doesn't influence its adsorption. Commonly,the adsorption capacity of the membrane with pore size 0.2 μm to titan yellow is about 10 mg/cm 3. These show that the charged modified microporous membrane will find a wide application area in wastewater treatment.