Analysis of RO flux decline due to membrane surface blockage

J. Borden; J. Gilron; D. Hasson

doi:10.1016/0011-9164(87)90209-8

Analysis of RO flux decline due to membrane surface blockage

J. Borden, J. Gilron, D. Hasson

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Recent work has shown that, flux decline due to precipitation of a scaling salt such as CaSO₄ on RO membranes, is governed by a surface blockage rather than a cake filtration mechanism. Crystal growth sites, scattered on the membrane, spread out laterally, increasingly blocking the membrane free flow area. Flux decline, resulting from gradual blockage of the membrane flow area, is analyzed for both laminar and turbulent flow conditions. Predicted results are shown to conform to experimental observations.

Original language	English
Pages (from-to)	257-269
Number of pages	13
Journal	Desalination
Volume	66
Issue number	C
DOIs	https://doi.org/10.1016/0011-9164(87)90209-8
State	Published - 1 Jan 1987
Externally published	Yes

ASJC Scopus subject areas

Chemistry (all)
Chemical Engineering (all)
Materials Science (all)
Water Science and Technology
Mechanical Engineering

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10.1016/0011-9164(87)90209-8

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title = "Analysis of RO flux decline due to membrane surface blockage",

abstract = "Recent work has shown that, flux decline due to precipitation of a scaling salt such as CaSO4 on RO membranes, is governed by a surface blockage rather than a cake filtration mechanism. Crystal growth sites, scattered on the membrane, spread out laterally, increasingly blocking the membrane free flow area. Flux decline, resulting from gradual blockage of the membrane flow area, is analyzed for both laminar and turbulent flow conditions. Predicted results are shown to conform to experimental observations.",

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AU - Gilron, J.

AU - Hasson, D.

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N2 - Recent work has shown that, flux decline due to precipitation of a scaling salt such as CaSO4 on RO membranes, is governed by a surface blockage rather than a cake filtration mechanism. Crystal growth sites, scattered on the membrane, spread out laterally, increasingly blocking the membrane free flow area. Flux decline, resulting from gradual blockage of the membrane flow area, is analyzed for both laminar and turbulent flow conditions. Predicted results are shown to conform to experimental observations.

AB - Recent work has shown that, flux decline due to precipitation of a scaling salt such as CaSO4 on RO membranes, is governed by a surface blockage rather than a cake filtration mechanism. Crystal growth sites, scattered on the membrane, spread out laterally, increasingly blocking the membrane free flow area. Flux decline, resulting from gradual blockage of the membrane flow area, is analyzed for both laminar and turbulent flow conditions. Predicted results are shown to conform to experimental observations.

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DO - 10.1016/0011-9164(87)90209-8

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Analysis of RO flux decline due to membrane surface blockage

Abstract

ASJC Scopus subject areas

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