Tag: Desalination

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Membrane pretreatment for large-scale seawater desalination has grown rapidly in the last few years. Existing examples seem to show that the additional cost can be more than recouped in reduced chemical costs alone, but there are also environmental advantages. This article is the first of two discussing the advantages of polyethersulfone (PESU) membranes for filtration…

KMS supplies first large-diameter SWRO system

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The port facilities for Chile’s Minera Esperanza copper/gold mine will soon be provided with drinking water from an innovative new seawater reverse-osmosis (SWRO) system supplied by Koch Membrane Systems (KMS). The system is the first full-scale large-diameter membrane RO system for seawater that KMS has developed. The system uses KMS MegaMagnum high capacity seawater membranes,…

Experience helps boost production and stability at Ras Abu Jarjur

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in Desalination, Instruments & controls, Pretreatment/cleaning, Projects, Pumping, piping & storage, Water reuse

Improving production with reduced expenditure could be the main targets of any desalination facility around the world. Such feats are being methodically achieved at Ras Abu Jarjur reverse-osmosis (RO) plant in Bahrain as a result of a series of improvements. Of the many available desalination techniques, RO was seen from the earliest days as a…

The coming of membrane distillation technology

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Membrane distillation (MD) is a unit operation that uses hydrophobic membranes as a barrier for contaminated water from which mass transport of vapor is driven by differences in vapor pressure. MD does not require a mechanical pressure pump, and temperature levels are such that low-grade heat sources may be used to supply the required energy…

Industry Interview – Dan McCarthy – From research to commissioning: how B&V has it all covered

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With another prestigious water project opened in May in the shape of the 228,000 m /d Sembcorp NEWater Plant in Singapore, the list of references for major desalination and water reuse projects involving global engineers Black & Veatch in various capacities grows ever more quickly. John Gould, chairman of Faversham House Group and the publisher…

New recovery technologies can minimize concentrate volumes

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Several emerging technologies show potential to enhance recovery rates during desalination of brackish water. These processes include emerging approaches for concentrate treatment and new desalination technologies. Emerging concentrate treatment technologies that aim to enhance recovery and thus minimize concentrate include physical-chemical or biological treatment of concentrate followed by further reverse-osmosis (RO) treatment; new RO methods…

Perth provides world desalination sustainability model

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As the USA finally starts its second large SWRO plant at Carlsbad, Australia is already into a second generation, with contracts let for the Southern Seawater desalination plant, the second to serve the Perth region. The author has for many years been a strong advocate of desalination and has promoted the technology around the world.…

Tordera SWRO storage tanks built within 16 weeks

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in Desalination, Pumping, piping & storage

The challenge of upgrading and nearly doubling the potable water storage capacity as part of an upgrade of the Tordera seawater reverse-osmosis desalination plant in Blanes (Girona) near Barcelona, Spain, within a rigorous timeframe, was awarded to CST Vulcan, a division of CST Industries Inc. Using a specialised jacking system, allowing the tanks to be…

Low-pressure valves for desalination: time for a new look at the butterfly?

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Across the entire water industry spectrum, valves are an essential element in the treatment of water and in its supply. The subject of butterfly valve technology and its suitability for desalination plants is one particular aspect that rightly demands attention, particularly in respect of specifying materials that will withstand corrosion. The centred-disc butterfly valve is…

Resort uses desalination in innovative reuse project

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