Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 675, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.memsci.2023.121393
Keywords
Solvent resistant nanofiltration; Solvent tolerant nanofiltration; Nanofiltration; Upscaling; Evaluator chart
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Nanofiltration (NF) is an established membrane technology for purifying water streams, and there is a growing demand for solvent recovery and recycling in industry. Solvent resistant nanofiltration (SRNF) and solvent tolerant nanofiltration (STNF) offer economical and eco-friendly solutions, but there are challenges in bridging the gap between academic research and industrial implementation. This critical review discusses the evaluator chart, which includes various factors for assessing the industrial potential of NF and SRNF membranes, and highlights trends in SRNF research from 2015 to 2020.
Nanofiltration (NF) is an established membrane technology to purify aqueous streams. In addition, there is a strong driving force to recycle and recover used solvents and dissolved compounds in industry. Solvent resistant nanofiltration (SRNF) and solvent tolerant nanofiltration (STNF), two young but highly promising membrane -based separation technologies, represent an economical and environment-friendly solution to this need. How-ever, there exists a significant gap between academic research and industrial implementation of these technol-ogies. This critical review addresses the challenges that need to be overcome to facilitate industrial valorization of academic breakthroughs by disclosing the so-called evaluator chart. This chart comprises industrial operating conditions, long-term performance, capital expenditures (CAPEX) and operational expenditures (OPEX) analysis, membrane module manufacturing, toxicity, and waste management. It is applied here to the state-of-the-art NF and SRNF membranes developed in academia to assess their industrial potential. To further direct future research towards industrial scale, invention trends in SRNF in both academia and industry from 2015 to 2020 are highlighted.
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