Economic evaluation of a new ultrafiltration membrane for pretreatment of seawater reverse osmosis

Knops, Frans; Hoof, S. Van; Futselaar, Harry; Broens, Lute

doi:10.1016/j.desal.2006.04.013

Cited by 60 publications

(26 citation statements)

References 2 publications

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“…The costs of this conventional pretreatment system are about 0.10 €/m 3 of pre-treated water, with about half of the costs being coagulants ( Table 2). These numbers are in accordance with references [13,14].…”

Section: Option 1: Conventional Pre-treatment For Spiral Wound Membrasupporting

confidence: 91%

“…Compared to conventional technology, the investment costs for UF are higher and thus the capital expenditures associated with pretreatment will increase. Concerning the operational expenditures, the costs for chemicals (mainly coagulant) will decrease with about 50% [13], but in turn costs for UF membrane replacement is added ( Table 2). The costs of UF are about 0.15 €/m 3 of pre-treated water.…”

Section: Option 2: Advanced Pre-treatment For Spiralwound Membrane Smentioning

confidence: 99%

“…The general recommendation for proper conventional pretreatment is the use of coagulation-flocculation, dissolved air flotation and filtration or the use of coagulation-flocculation, settling and filtration [13]. Many SWRO plants operate for many years with conventional pre-treatment, consisting of coagulation-flocculation Downloaded by [University of Sydney Library] at 21:22 15 August 2015 and a double rapid sand filtration [14].…”

Section: Option 1: Conventional Pre-treatment For Spiral Wound Membramentioning

confidence: 99%

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Pre-desalination with electro-membranes for SWRO

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Cornelissen

et al. 2011

Desalination and Water Treatment

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ab s t r ac tAlthough seawater reverse osmosis (SWRO) is currently the only non-thermal desalination process in practical use, its characteristics make it difficult to approach the ideal reversible process. SWRO has a low water recovery (determined by the osmotic pressure) and relatively high energy consumption. A breakthrough in development of SWRO membranes can not be expected; at maximum a recovery of 60% could be obtained with membranes that can stand ultra-high pressures. In our project, an alternative development of desalination is introduced in which the osmotic pressure difference is reduced prior to SWRO with the use of electro-membranes, as in electrodialysis (ED). ED has distinctive and complementary assets when compared to SWRO. ED enables an operation close to the reversible limit, at least to the first extent of the desalination process. ED is an ideal pre-desalination step as: (i) the water recovery is not limited by a driving force (e.g., pressure), (ii) the specific energy consumption is directly proportional to the salt removal, (iii) the process economy allows low ionic fluxes and thus low irreversible losses, (iv) the system can be operated with infinitesimal changes in salinity (a pre-requisite for reversibility), and (v) the pre-treatment efforts can be kept limited. In this paper we compare a hybrid ED-SWRO scheme with state-of-theart desalination schemes with respect to costs and energy consumption.

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Section: Option 1: Conventional Pre-treatment For Spiral Wound Membrasupporting

confidence: 91%

Section: Option 2: Advanced Pre-treatment For Spiralwound Membrane Smentioning

confidence: 99%

Section: Option 1: Conventional Pre-treatment For Spiral Wound Membramentioning

confidence: 99%

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Pre-desalination with electro-membranes for SWRO

Post

Huiting

Cornelissen

et al. 2011

Desalination and Water Treatment

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“…Technologies that deliver the highest grade water for reuse, such as ultra filtration, reverse osmosis, and ultraviolet disinfection, have become cheaper and more effective. 34 The public are becoming more environmentally concerned. Recycling water seems as natural as any other recycling, and more environmentally friendly than big dams, diverted rivers, and desalination.…”

Section: The Case For Water Reuse Re-visitedmentioning

confidence: 99%

Water and sanitation provision in a low carbon society: The need for a systems approach

Voulvoulis

2012

Journal of Renewable and Sustainable Energy

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In the face of climate change threatening to cause major alterations to hydrological cycles and taking into account the relationship between water, energy use, and food production, water management challenges today prove more complex than ever to address. This paper, recognising the progress made through science and engineering in the last century, reflects on the need to manage water resources more sustainably. It proposes that a change in mindsets is required in order to reconsider our approach in applying established solutions and utilising current technologies and tools to deliver them, with a renewed focus on re-assessing what the real problems are from a systems perspective. Focusing on the water-energy-food nexus, water reuse using desalination processes as a management option is revisited. Findings demonstrate that interdisciplinary, integrated and holistic solutions have the potential to deliver benefits across different sectors, disciplines, and systems, with a real potential for taking us a bit closer to sustainability.

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“…Technologies that deliver the highest grade water for reuse, such as ultra filtration, reverse osmosis and ultraviolet disinfection have become cheaper and more effective [24]. The public is becoming more environmentally concerned.…”

Section: The Potential For Water Reusementioning

confidence: 99%

The potential of water reuse as a management option for water security under the ecosystem services approach

Voulvoulis

2015

Desalination and Water Treatment

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To cite this article: Nikolaos Voulvoulis (2015) The potential of water reuse as a management option for water security under the ecosystem services approach, Desalination and Water Treatment, 53:12, 3263-3271, A B S T R A C TFocusing on the water-energy-food nexus, this paper revisits water reuse as a management option for water security under the ecosystem approach. The case of Singapore is presented as an example where water near self-sufficiency has been achieved through careful planning and leveraging of technology. Water reuse features prominently amongst other innovative integrated water management approaches. Although the application of water reuse technologies is very limited in the UK, there is a lot of potential both from a business and from an environmental point of view. The Anglian region, being extremely dry and hosting highly water-intensive economic activities, is classified as seriously water stressed. Water reuse is, therefore, of particular interest, especially considering the multiple benefits that are derived from ecosystems, i.e. ecosystem services, and how these depend on water availability and quality. Examples of technologies that deliver the highest grade water for reuse are ultra filtration, reverse osmosis and ultraviolet disinfection (often in combination). Findings demonstrate that water reuse can help in addressing water problems and challenges, particularly when decision-making is from a systems perspective. When ecosystem services are taken into account and are valued properly, water reuse is a sustainable practise that can also be financially profitable.

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Economic evaluation of a new ultrafiltration membrane for pretreatment of seawater reverse osmosis

Cited by 60 publications

References 2 publications

Pre-desalination with electro-membranes for SWRO

Pre-desalination with electro-membranes for SWRO

Water and sanitation provision in a low carbon society: The need for a systems approach

The potential of water reuse as a management option for water security under the ecosystem services approach

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