乳酸溶液纳滤过程中动态形成的锆（IV）水合氧化物-聚丙烯酸酯膜的污染

The Fouling of Zirconium(IV) Hydrous Oxide-Polyacrylate Dynamically Formed Membranes during the Nanofiltration of Lactic Acid Solutions.

作者信息

Polom Ewa

机构信息

Department of Chemical Engineering, West Pomeranian University of Technology, Szczecin, al. Piastów 42, 71-065 Szczecin, Poland.

出版信息

Membranes (Basel). 2013 Dec 10;3(4):415-23. doi: 10.3390/membranes3040415.

DOI:10.3390/membranes3040415

PMID:24957066

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4021954/

Abstract

The results of investigations of flux decline during nanofiltration (NF) of lactic acid solutions using dynamically formed zirconium(IV) hydrous oxide/polyacrylate membranes (Zr(IV)/PAA) under conditions resulting in low and high lactic acid rejection are reported. The experimental permeate flux versus time curves were analyzed in the frame of resistance in a series model with the aim of developing the characteristic of resistances. Analysis of experimental data and results of calculations showed that the reduction of fouling effects in the investigated system could be achieved due to appropriate hydrodynamic process conditions and regular rinsing with deionized water.

摘要

报道了在导致乳酸截留率低和高的条件下，使用动态形成的氢氧化锆（IV）/聚丙烯酸酯膜（Zr（IV）/PAA）对乳酸溶液进行纳滤（NF）过程中通量下降的研究结果。在串联阻力模型框架内分析了实验渗透通量与时间的曲线，目的是确定阻力特性。实验数据分析和计算结果表明，通过适当的流体动力学工艺条件和用去离子水定期冲洗，可以减少所研究系统中的污垢影响。