Performance
Membrane filtration (RO, NF, UF) — Installation and performance

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Performance


Membrane filtration (RO, NF, UF) — Installation and performance

Author : Pierre AIMAR

Publication date: August 10, 2006 | Lire en français

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2. Performance

2.1 Flow calculation models (theoretical approach)

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2.1.1 Darcy's Law

Membranes used in liquid separation can commonly be considered as ideal porous media, even if they have a marked two-dimensional character. This translates into a proportionality between the flux density obtained J and the applied pressure difference Δp, which is written (Darcy's law): J=ΔpμpRh=LpΔpμp

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