悬浮型光催化纳滤膜反应器处理H酸溶液工艺中操作压力变化的机理研究:实验部分

Systematic studies on influencing mechanisms of TMP changs of suspended photocatalytic nanofiltration membrane reactor for treatment of H-acid aqueous solutions: experimental part

首次通过系列黑暗条件下的膜分离空白试验对悬浮型光催化纳滤膜反应器中耦合分离膜操作压力的变化机理进行研究。为了从根本上揭示悬浮型光催化纳滤膜反应器中引起耦合分离膜操作压力规律性变化以及不同初始操作压力条件下导致变化规律明显差异性的根本原因,分别进行三组黑暗条件下的膜分离对比试验,考察不同膜分离过程中膜分离操作压力的变化规律、变化幅度和变化速度。结果表明,在不同的初始操作压力条件下,由于待分离的污染物种类、性质、组分和浓度的差异导致纳滤膜分离操作压力的变化规律存在根本性变化。

The systematic studed on influencing mechanisms of changs in TMP （transmembrane pressure） of suspended nanofihration membrane reactor for treatment of H-acid aqueous solutions were innovatively performed through the series of three blank membrane separation experiments under the dark conditions, aiming at elucidating the corresponding mechanism of transmembrane pressure change during suspended photocatalytic nanofiltration membrane reactor for removal of H-acid substrate in terms of the changing behaviors, changing ranges and rates. Moreover, all the four blank membrane separation experiments without UV illumination indicated that very different changing behaviors, changing ranges and rates of transmembrane pressure could be observed under the three different given initial value of 5.5,4.0 and 3.0 bar, which could be dedicated to the significant differences in the organic species, components, properties and concentrations of the employed pollutants among the stated four membrane separation experiments in the study.