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Journal ArticleDOI

Assessment of an ultrafiltration pre-treatment system for a seawater reverse osmosis plant

01 Jan 2006-International Journal of Nuclear Desalination (Inderscience Publishers)-Vol. 2, Iss: 2, pp 132-138
TL;DR: In this article, the role of UF in the overall operation of the seawater reverse osmosis system is examined, and an operational UF pre-treatment system is presented.
Abstract: The seawater reverse osmosis system requires extensive pre-treatment in order to ensure reliable performance. The conventional pre-treatment system involves dosing of chemicals, which requires frequent monitoring of raw water quality, and also involves adjusting the dosage. Besides being cumbersome, there is a lot of time lag involved in carrying out these measures. This calls for pre-treatment systems based on physicochemical mechanisms. During the last few years, Ultrafiltration (UF) has emerged as a leading unit operation in order to render raw seawater compatible with reverse osmosis operations. In this context, the Desalination Division of BARC has already installed an operational UF pre-treatment system. In this paper, we examine the role of UF in the overall operations of the seawater reverse osmosis system.
Citations
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Journal ArticleDOI
TL;DR: Key parameters of an RO process and process modifications due to feed water characteristics are brought to light by a direct comparison of seawater and brackish water RO systems.

2,665 citations

Journal ArticleDOI
TL;DR: In this paper, the ultra-filtration (UF) method was studied as a wastewater pre-treatment technique for decolourization of residual dye-bath effluents after dyeing cotton/polyamide blends using reactive and acid dyes.

35 citations

Book ChapterDOI
01 Jan 2020
TL;DR: In this paper, the FO-RO hybrid system consumes slightly more energy than conventional RO unit, but its lifetime can be extended due to the reduction of RO membrane fouling, which can be used for desalination if coupled with other separation technologies.
Abstract: After more than 40 years’ development, RO membrane desalination has been a well-established technology, with similar market share as conventional thermal technologies. However, membrane fouling, especially biofouling, still remains a challenge for the RO desalination. Transparent exopolymer particles (TEP, a type of EPS) recently are reported as a key membrane fouling element. FO can be used for desalination if coupled with other separation technologies. The FO-RO hybrid system consumes slightly more energy than conventional RO unit, but its lifetime can be extended due to the reduction of RO membrane fouling.

5 citations

01 Feb 2014
TL;DR: In this paper, the suitability of UF and MF membrane as pre-treatments, based on their higher permeability and lower fouling potentiality than others, was evaluated.
Abstract: RO membrane major foulants were reviewed. Among available pre-treatment technologies four pre-treatments namely; MF, UF, MBR membranes and GMF are qualitatively ranked as best. Further, experiments and fouling mathematical models showed suitability of UF and MF membrane as pre-treatments, based on their higher permeability and lower fouling potentiality than others.

5 citations


Cites background from "Assessment of an ultrafiltration pr..."

  • ...Though, the key disadvantage of membrane pre-treatments (Teuler et al., 1999; Kamp et al., 2000; Pearce et al., 2003; Tiwari et al., 2006; Wilf and Bartels 2006; Pearce 2007; Xu et al., 2007) lay in the inherent propensity of a membrane to separate foulants from product water and, in the process, become fouled itself....

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  • ...UF membranes seem to be, by far, the most common choice in research studies and pilot testing (Teuler et al., 1999; Kamp et al., 2000; Pearce et al., 2003; Tiwari et al., 2006; Wilf and Bartels 2006; Pearce 2007; Xu et al., 2007)....

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  • ...These pre-treatment membranes act as a defined barrier between the RO system and any suspended particles and lower feed water SDI to <2 (Tiwari et al., 2006), lower turbidity to less than 0....

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