Performance evaluation of multi-stage reverse osmosis process with permeate and retentate recycling strategy for the removal of chlorophenol from wastewater

Al‐Obaidi, Mudhar A.; Kara-Zaïtri, Chakib; Mujtaba, Iqbal M.

doi:10.1016/j.compchemeng.2018.08.035

Cited by 14 publications

(9 citation statements)

References 24 publications

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“…Specifically, the composition of the membrane, transport parameters of water and solute besides physical characteristics were affected with the feed temperature diminution. Hence, decreasing the temperature led to decreasing the flux of the solute across membranes as a consequence of reducing membrane pore size [14,29,42]. This is mainly indicated by various scientists such as Mane et al [45] and Kotb et al [46].…”

Section: Influence Of the Supply Temperature Seasonal Variation On Romentioning

confidence: 94%

“…Certainly, the conductivity boost will considerably affect the membrane production in short and long terms [14,27,29,31,[40][41][42][43]. In short term, the permeate quality as well as productive capacity will diminish progressively.…”

Section: Feed Water Seasonal Variationsmentioning

confidence: 99%

“…The feed water temperature changes will affect the RO performances [14,27,29,[40][41][42][43]. According to the industrial desalination practice, an increment of 4°C of the feed temperature will generate a membrane production augmentation at around 10%, which is a standard fact [31,44].…”

Section: Feed Water Temperature Seasonal Variationmentioning

confidence: 99%

“…In that regard, it is reasonable to require that raising the salinity of the raw water will boost the membrane salt concentration, which previously starts a diminution of the mass transfer factor. Accordingly, increasing the salinity of the raw water led to a significant increase of permeate salinity [14,29,42].…”

Section: Impact Of Feed Water Conductivity Seasonal Variation On Permmentioning

confidence: 99%

“…The permeate conductivity has increased progressively in both stages. This boost is owing to the seasonal variations of the raw water salts [14,42]. From June to August 2014, the RO unit has experienced the fouling phenomena.…”

Section: Performance Assessment Of the Ro Operation Parametersmentioning

confidence: 99%

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Impact of the Raw Water Seasonal Variations on the Reverse Osmosis Performance: Khenifra Plant, Morocco

Boulahfa

Belhamidi

Elhannouni

et al. 2019

J. of Wat. & Envir. Tech.

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Reverse osmosis (RO) plays an outstanding role in water desalination worldwide. Performance of this technique depends on membrane fouling and the raw water seasonal variations, especially temperature and raw water salt concentration. Hence, to neutralize the impact of temperature and feed concentration on the performance parameters, the data collected from the brackish surface water plant were standardized through the use of the American Society for Testing and Materials methods. The value of this normalization is to be able to discern the performance variation which is due to the membrane aging and the membrane fouling, scaling or degradation. The present research investigates the real industrial results gathered from the first experience of brackish surface water demineralization by RO in Morocco. The results obtained evidently show that the feed water is subject to serious seasonal variations in terms of feed temperature and feed salts concentration, which noticeably affect the feed pressure, membrane permeability, and permeate conductivity. The standardized permeate flow, standardized pressure drop, and standardized salt passage show that the performance of the plant was steady all over the period of the monitoring and the observed performance decline-was due to membrane fouling.

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