Tag: Seawater

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The main obstacle to the use of UF membranes for SWRO pretreatment has always been the high operating cost. This paper describes operational experience of pilot projects using a new membrane designed for the lowest whole-life cost while enabling the most difficult seawater to be treated using membrane desalination. This article shows how the project…

Gold Coast’s twin intake/outfall tunnels save space and environment

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A key part of the anti-drought strategy in Queensland, Australia, has been the construction of a 125,000 m&sup3/d seawater reverse-osmosis desalination plant, located at Tugun on the Gold Coast, due to start producing water in November 2008. This plant will supply up to 20% of the average demand for the Brisbane/Gold Coast Region. The Gold…

Possibilities for energy optimisation in design and operation of SWRO plants

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Seawater desalination with reverse osmosis (SWRO) has taken a noteworthy upturn during recent years. One of the reasons for the success of the membrane process is its lower energy consumption in comparison with thermal desalination processes. The high-pressure RO desalination stage is undoubtedly the dominating energy consumer of an SWRO plant. Energy consumption of SWRO,…

Advantages of Polyethersulfone (PESU) membranes for pretreatment for SWRO applications

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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…

MEDVSA: a methodology for design of brine discharges into seawater

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Desalination is increasing fast in Spain, especially on the Mediterranean coast. The brine generated in the process is discharged into the sea, producing a negative impact on the endemic and stenohaline marine ecosystems, for instance, the Posidonia oceanica and Cymodocea nodosa meadows. MEDVSA is an R&D project, subsidized by the Spanish Ministry of the Environment…

Trekkopje SWRO opened at Namibian uranium mine

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The 55,000 m /d Trekkopje seawater desalination plant in Nambia was opened on 16 April 2010 in the presence of Namibia’s minister of agriculture, water and forestry, John Mutorwa, and former president, Same Nujom. Designed and constructed by Keyplan, a South African specialist water treatment subsidiary of the Aveng Group, the Trekkopje seawater reverse-osmosis plant,…

Korea puts $170m into desalination SWRO and water reuse

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The Republic of Korea has recently funded a six-year US$ 170 million research initiative in seawater desalination. Over 500 researchers from 16 universities will contribute to the work of the 50-member core team. Government leaders funded the research initiative in part due to the success of South Korean multinational firms in the desalination export sector.…

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,…

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…

Experience of ten years running the Okinawa desalination plant

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