Influence of Feed Composition on the Separation Factor during Nanofiltration of Organic Acids.

IF 3.3 4区 工程技术 Q2 CHEMISTRY, PHYSICAL Membranes Pub Date : 2024-07-28 DOI:10.3390/membranes14080166
Gustavo Tottoli, Sylvain Galier, Hélène Roux-de Balmann
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Abstract

In this study, nanofiltration experiments using synthetic solutions containing acetate, butyrate, and lactate are carried out to assess the impact of the feed composition, i.e., feed concentration and feed proportions, on the separation factor of couples of solutes in binary and ternary solutions. In binary solutions, no influence of the solute proportions in the feed was pointed out, whatever the couple of solutes. The separation factor of acetate/butyrate and acetate/lactate was found to decrease with increasing feed concentration, while that of lactate/butyrate remained constant. The separation factors of acetate/lactate and lactate/butyrate were identical in ternary solutions compared to binary ones, showing no impact of the addition of the third solute. In ternary solutions, the presence of lactate decreased the separation factor of acetate/butyrate, but this decrease was not influenced by the proportion of lactate.

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有机酸纳滤过程中进料成分对分离因子的影响
本研究使用含有醋酸盐、丁酸盐和乳酸盐的合成溶液进行纳滤实验,以评估进料成分(即进料浓度和进料比例)对二元和三元溶液中溶质耦合分离因子的影响。在二元溶液中,无论溶质对偶如何,进料中的溶质比例都没有影响。乙酸盐/丁酸盐和乙酸盐/乳酸盐的分离因数随着进料浓度的增加而降低,而乳酸盐/丁酸盐的分离因数保持不变。与二元溶液相比,三元溶液中醋酸酯/乳酸酯和乳酸酯/丁酸酯的分离因数相同,表明添加第三种溶质没有影响。在三元溶液中,乳酸盐的存在降低了醋酸盐/丁酸盐的分离因数,但这种降低不受乳酸盐比例的影响。
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来源期刊
Membranes
Membranes Chemical Engineering-Filtration and Separation
CiteScore
6.10
自引率
16.70%
发文量
1071
审稿时长
11 weeks
期刊介绍: Membranes (ISSN 2077-0375) is an international, peer-reviewed open access journal of separation science and technology. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided.
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