Research progress in exploring membrane distillation via an approach based on optical coherence tomography
Applications of membrane distillation(MD)are hindered primarily owing to the occurrence of membrane fouling,scaling,and wetting;revealing the mechanisms underlying these negative phenomena is strongly dependent on the exploration of novel characterization methods.Optical coherent tomography(OCT)is an emerging technique that enables a non-intrusive characterization for various membrane processes.When introducing the relevant principle of OCT,this review is aimed at elucidating how the OCT-based characterization was exploited to analyze MD processes in both qualitative(e.g.,visualization of the fouling layer)and quantitative(e.g.,in-situ structural measurement of the fouling layer)ways.In addition to assessing the pros and cons of applying OCT to the studies on MD,practical and theoretical implications are discussed to shed light on the design of high efficiency MD systems for water reclamation and other separations.
membrane distillationoptical coherence tomographyin-situ characterizationmembrane foul-ingscaling and wetting
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NSTL
万方数据
维普
