Membrane ageing during water treatment

Tng, Keng Han; Antony, Alice; Wang, Yuan; Leslie, Greg

doi:10.1016/b978-1-78242-121-4.00011-3

Cited by 5 publications

(3 citation statements)

References 52 publications

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“…The diffusion process of retained particles on deposited membrane favourites the increase of lifetime membrane as power law with ratio D/F . However, chemical attack in membrane desalination (Tng et al. , 2015) trains the same effect to reduce its lifetime and performance.…”

Section: Resultsmentioning

confidence: 99%

“…In general, membrane rupture results from physical damage to the structure of the membrane module. The rupture of the membrane fibres can be caused by four factors: damage by chemical attack (oxidation) (Tng et al, 2015), damage during operation resulting from faulty installation (compression) (Childress et al, 2005), damage due to the presence of foreign bodies (notching and cleavage) and damage due to a faulty membrane/module structure (stress/strain) (Akhondi et al, 2017). In addition, membrane ageing, combined with excessive fibre movement due to external loads, can also cause failure of submerged hollow fibres (HF) membranes.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Breaking process of composite membranes used in desalination phenomenon

Ezaier

Hader

Achik

et al. 2022

MMMS

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PurposeThe purpose of this paper is to present a study of the breaking process of composite membranes used in the water desalination. Temperature, fluid pressure and accumulate retained fluid are remarkable parameters, which are likely to damage these membranes.Design/methodology/approachIn this paper, the authors adopt the dynamics of a fiber bundle model to investigate the breaking process of composite membranes with fibres distributed parallel to the direction of fluid flow. The model is based on the fiber bundle model where the fibres are randomly oriented.FindingsThe obtained results show that the increase in the parameters leads to an avalanche rupture of the membrane fibre and also increases its porosity. Lifetime membranes exhibit an exponential and power law vs. the parameters.Originality/valueThe accumulation of the retained fluid has a great effect on membranes than the temperature and fluid pressure.

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Section: Resultsmentioning

confidence: 99%