Granular activated carbon filtration plus ultrafiltration as a pretreatment to seawater desalination lines: Impact on water quality and UF fouling

Monnot, Mathias; Laborie, Stéphanie; Cabassud, Corinne

doi:10.1016/j.desal.2015.12.010

Cited by 50 publications

(14 citation statements)

References 28 publications

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“…Results indicated a significantly lower RO fouling. Another study [419] investigated the use on granular activated carbon (GAC) adsorbent as a step to remove dissolved organic carbon (DOC) prior to using UF. Results showed that this combination for the pre-treatment is very effective in reducing the RO fouling potential as it reduces both slit density and turbidity by 70% and colloids by 90%.…”

Section: Membrane Pre-treatment Technologiesmentioning

confidence: 99%

Reverse osmosis desalination: A state-of-the-art review

et al. 2019

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Water scarcity is a grand challenge that has always stimulated research interests in finding effective means for pure water production. In this context, reverse osmosis (RO) is considered the leading and the most optimized membrane-based desalination process that is currently dominating the desalination market. In this review, various aspects of RO desalination are reviewed. Theories and models related to concentration polarization and membrane transport, as well as merits and drawbacks of these models in predicting polarization effects, are discussed. An updated review of studies related to membrane modules (plate and frame, tubular, spiral wound, and hollow fiber) and membrane characterization are provided. The review also discusses membrane cleaning and different pre-treatment technologies in place for RO desalination, such as feed-water pre-treatment and biocides. RO pre-treatment technologies, which include conventional (e.g., coagulationflocculation, media filtration, disinfection, scale inhibition) and non-conventional (e.g., MF, UF, and NF) are reviewed and their relative attributes are compared. As per the available literature, UF, MF and coagulation-flocculation are considered the most widely used pre-treatment technologies. In addition, this review discusses membrane fouling, which represents a serious challenge in RO processes due to its significant contribution to energy requirements and process economy (e.g., flux decline, permeate quality, membrane lifespan, increased feed pressure, increased pre-treatment and membrane maintenance cost). Different membrane fouling types, such as colloidal, organic, inorganic, and biological fouling, are addressed in this review. Principles of RO process design and the embedded economic and energy considerations are discussed. In general, cost of water desalination has dropped to values that made it a viable option, comparable even to conventional water treatment methods. Finally, an overview of hybrid RO desalination processes and the current challenges faced by RO desalination processes are presented and discussed.

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Section: Membrane Pre-treatment Technologiesmentioning

confidence: 99%

Reverse osmosis desalination: A state-of-the-art review

et al. 2019

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“…There are many types of granular materials, including but not limited to activated carbon (Delgado et al, 2012;Serpieri et al, 2000;Shanmuganathan et al, 2014), anthracite (Schmidt et al, 2016), sand (Asami et al, 2016), diatomaceous earth (Michen et al, 2011), sponge (Yeom and Kim, 2016;Young et al, 2016), cotton (Ferrero et al, 2014), etc. Among the granular materials, activated carbon is widely used in commercial water filters as a pretreatment method for the subsequent RO membrane filtration (Monnot et al, 2016a). Activated carbon can reduce the concentration of a variety of substances that are common in water (Derylo-Marczewska et al, 2017;Karmacharya et al, 2016;KorottaGamage and Sathasivan, 2017).…”

Section: Pretreatment Technologiesmentioning

confidence: 99%

“…However, additional cations such as sodium cations will be released into water during this process which could place a burden for the following RO process. Granular media filtration is the process to remove suspended solids, microorganisms and other contaminants when water passes through a porous granular media (Greenlee et al, 2009;Ho et al, 2011;Monnot et al, 2016a;Yu and Graham, 2015). There are many types of granular materials, including but not limited to activated carbon (Delgado et al, 2012;Serpieri et al, 2000;Shanmuganathan et al, 2014), anthracite (Schmidt et al, 2016), sand (Asami et al, 2016), diatomaceous earth (Michen et al, 2011), sponge (Yeom and Kim, 2016;Young et al, 2016), cotton (Ferrero et al, 2014), etc.…”

Section: Pretreatment Technologiesmentioning

confidence: 99%

A review of reverse osmosis membrane fouling and control strategies

Jiang

Li²

2017

Science of The Total Environment

636

362

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Reverse osmosis (RO) membrane technology is one of the most important technologies for water treatment. However, membrane fouling is an inevitable issue. Membrane fouling leads to higher operating pressure, flux decline, frequent chemical cleaning and shorter membrane life. This paper reviews membrane fouling types and fouling control strategies, with a focus on the latest developments. The fundamentals of fouling are discussed in detail, including biofouling, organic fouling, inorganic fouling and colloidal fouling. Furthermore, fouling mitigation technologies are also discussed comprehensively. Pretreatment is widely used in practice to reduce the burden for the following RO operation while real time monitoring of RO has the advantage and potential of providing support for effective and efficient cleaning. Surface modification could slow down membrane fouling by changing surface properties such as surface smoothness and hydrophilicity, while novel membrane materials and synthesis processes build a promising future for the next generation of RO membranes with big advancements in fouling resistance. Especially in this review paper, statistical analysis is conducted where appropriate to reveal the research interests in RO fouling and control.Graphic Abstract

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“…Nevertheless, just as in the case of MF, hybrid systems integrating UF with other conventional pretreatment techniques have proven to be more efficient in giving permeate waters with lower SDI compared to stand-alone units [165]. Recently, Monnot, et al [166] reported the feasibility of using GAC before UF. GAC strongly reduced SDI and turbidity and removed around 70% of DOC and 90% of colloids.…”

Section: Ultrafiltration (Uf)mentioning

confidence: 99%

Reverse osmosis pretreatment technologies and future trends: A comprehensive review

2019

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Recent progress in reverse osmosis (RO) technology is not limited to RO membrane materials, module designs and RO process optimization. It involves prior feed treatment which directly impacts RO system performance. The ongoing challenges of membrane fouling in RO membranes can be addressed by increasing the operational efficiency through the use of correct pretreatment options which can mitigate organic and inorganic fouling by selectively rejecting contaminants prior to reaching the RO unit. Highly polluted water resources have put critical stress on the existing conventional pretreatment techniques, whereby membrane pretreatment has emerged as a promising alternative. This paper provides an overview of the development and current trends in conventional and nonconventional RO pretreatment techniques whereby the techniques are critically reviewed to 2 inform readers of potential improvements in such areas. This paper addresses the major drawbacks of conventional pretreatment methods which have necessitated the use of membrane pretreatment techniques. Special attention is given to microfiltration, ultrafiltration and nanofiltration methods and their development in terms of advanced membrane materials based on ceramics and self-cleaning membranes. Studies from laboratory scale standalone systems, pilot scale and large scale integrated systems for performance, cost and ecological analysis have been reviewed to familiarize readers with the many factors which need to be analyzed for selection of the appropriate pretreatment method(s). The critical review in this paper will help researchers focus more on the areas which have room for further development for cost-effective and advanced RO pretreatment techniques.

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Granular activated carbon filtration plus ultrafiltration as a pretreatment to seawater desalination lines: Impact on water quality and UF fouling

Cited by 50 publications

References 28 publications

Reverse osmosis desalination: A state-of-the-art review

Reverse osmosis desalination: A state-of-the-art review

A review of reverse osmosis membrane fouling and control strategies

Reverse osmosis pretreatment technologies and future trends: A comprehensive review

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