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

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

Author : Pierre AIMAR

Review date: July 27, 2018 | Lire en français

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2. Performance

2.1 Flow calculation models (theoretical approach)

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): $J = \frac{Δ p}{μ_{p} R_{h}} = L_{p} \frac{Δ p}{μ_{p}}$

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References

(1) - PETSEV (D.N.), STAROV (V.M.), IVANOV (I.B.) - Concentrated dispersions of charged colloidal particles: sedimentation, ultrafiltration and diffusion - . Colloids and Surfaces A 81, p. 65-81 (1993).
(2) - BACCHIN (P.), SI-HASSEN (D.), STAROV (V.), CLIFTON (M.J.), AIMAR (P.) -...

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

2. Performance

2.1 Flow calculation models (theoretical approach)

References

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