Intakes


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Experts slam economics of seabed intake for giant US desalination project

A 250 Ml/d seawater desalination (SWRO) plant planned for Huntington Beach, California using sub seafloor intake pipes was "not economically viable at the Huntington Beach location within a reasonable time frame" according to a recent expert report. The findings could jeopardise the Huntingdon project because sub seafloor technology was pivotal to regulatory approval.

Cal Am applies for US$ 3 million desalination intake grant

California American Water (Cal Am) is seeking a US$ 1 million grant from the California Department of Water Resources to help fund the installation of a US$ 3 million slant test well, which is needed for its proposed Monterey desalination project.

Monterey boreholes reveal good slant-well conditions

California American Water (Cal Am) reported on 20 December 2013 that data from its ongoing investigation into subsurface slant well intakes for its proposed Monterey desalination plant were showing promising results.

Commission vote halts Huntington Beach application

Poseidon Water withdrew its application for a coastal development permit (CDP) for its proposed Huntington Beach seawater desalination plant after the California Coastal Commission voted on 13 November 2013 to postpone a vote on the application.

Australian workshop on desalination intakes and discharges

An international workshop on intakes and discharges for seawater desalination is to be held by the National Centre of Excellence in Desalination Australia is in Adelaide on 16-17 May 2012.

Another appeal against Carlsbad desalination project

An appeal against a court ruling allowing the Carlsbad desalination plant to use the open-ocean cooling-water intakes of the adjacent power station for its water intake was launched on 18 August 2011 by the Surfrider Foundation, a non-profit grassroots organization.

The intake at the Adelaide desalination plant during construction.

Intakes opened for Adelaide desalination project

Commissioning is now closer for the Aus$ 1.824 billion (US$ 1.905 billion) Adelaide Desalination Project, after the 1.4 km intake began taking in seawater last week.

USEPA puts cooling-water intake rules out for comment

Proposals concerning large-volume water intakes, such as those for power plants or factories, were issued for public comment by the US Environmental Protection Agency (EPA) on 29 March 2011.

Southern California gets wastewater reuse and desalination grants

Southern California's Joint Water Purification Pilot Program (JWPPP), which will evaluate the feasibility of wastewater reuse using advanced water treatment, has received a US$ 334,000 grant from the US Bureau of Reclamation's WaterSMART program.

Orange County issues RFP for desalination pilot-plant operation

The Municipal Water District of Orange County (MWDOC) in California, USA, issued a request for proposals on 23 October 2009 for professional engineering services for the South Orange Coastal Ocean Desalination Project - Phase 3. Deadline is 19 November 2009.

"Significant" impacts from Monterey desalination says draft report

Whichever of the three desalination-based proposals for future water supply on the Monterey peninsula in California is eventually implemented, there would be "significant and unavoidable" environmental impacts.

Monterey slant well project gets grant to assess bacteria removal

US utility, American Water, has picked up more than US$ 200,000 in grant support from the WateReuse Research Foundation to assess pathogen removal during the collection of seawater for desalination through sub-surface slant wells.

New York watchdog throws out Suez desalination proposal

The New York State utility regulator has rejected a proposal by a Suez Environnement subsidiary, United Water, for the first desalination plant on the Hudson River north of New York City.

Geosyntec picked to lead subsurface intake study

West Basin Municipal Water District has selected a team led by engineering consultancy, Geosyntec, to study options for subsurface seawater intake for the district's proposed 75,700-227,100 m³/d seawater reverse osmosis project.

Rejected slant well could work

A water intake system previously rejected for a proposed desalination plant at Huntington Beach could be viable if it is used differently, according to environmental organisation, Orange County Coastkeeper.

Monterey slant well test back in action

California American Water has resumed operation of its test slant well following a halt in the well's operation pending a coastal commission ruling.

IDE buys Flowserve pumps for Carlsbad desalination

IDE Technologies has purchased three large vertical seawater intake pumps from Flowserve Corporation for the Carlsbad seawater reverse osmosis (SWRO) desalination plant in Carlsbad, California.

Oman seeks bids for desalination inlets consultation

Oman Power and Water Procurement (OPWP) company has invited bids from consultancies to investigate the best sea-water intake and outfall location for two independent desalination projects.



Timeline established for IDA desalination energy guide

The International Desalination Association (IDA) has established a timeline for producing its guidelines for reducing energy consumption in desalination ending at its 2015 World Congress.

Monterey consultant can't choose between projects

The Monterey Peninsula Regional Water Board (MPRWA) in California still has to decide between three competing seawater desalination projects for the area after its Technical Advisory Committee accepted on 17 September 2012 a report by consultants Separation Processes Inc of Carlsbad.

The 93 t intake tower for the Moncofa desalination plant ready for float-out.

Tower launched for Moncofa desalination intake

A reinforced concrete tower which will form the intake structure of the Moncofa desalination plant was launched by the Spanish regional water authority Acuamed on 26 June 2012 at the port of Castellón de Burriana on the Mediterranean coast.

Huntington Beach desalination standoff over intake system

Environmental group Orange County Coastkeeper (OC Coastkeeper) accused Poseidon Resources on 26 March 2012 of withholding information from the California Coastal Commission (CCC) about the proposed Huntington Beach desalination plant.

IDA announces final academy details for Singapore

The International Desalination Association (IDA) has announced details of its inaugural set of courses and faculty for the new IDA Desalination Academy, which will officially be launched in conjunction with the 2012 Singapore International Water Week.

Papers invited for 2013 AWWA/AMTA event

With the 2012 AWWA/AMTA Membrane Technology Conference under way this week in Phoenix, Arizona, a call for papers has been issued for next year's event in Texas.

Poseidon plays down watchdog's warning

The developer of a giant desalination project at Huntingdon Beach, California has played down a recent notice from the Coastal Commission telling the firm that its application for a development permit was incomplete.

Cambria desalination study fails consistency test

The California Coastal Commission has called into question the future of the Cambria desalination project near San Luis Opispo by ruling that a US Army Corps of Engineers project to test soil and water near the proposed intake/outfall site is inconsistent with its habitat and coastline rules.

A carpet shark

Shark makes home in Perth II desalination plant

The Water Corporation in Western Australia has confirmed that a wobbegong (carpet) shark has been found in the seawater intake station at the Southern Seawater Desalination Plant during scheduled maintenance work.

New EIA submitted for Antofagasta desalination plant

A revised environmental impact assessment (EIA) has been submitted by Aguas de Antofagasta for the 86,000 m³/d desalination plant for Antofagasta in Chile's Region II, according to Business News America on 21 September 2011.

Green groups pledge to drop Huntingdon appeal

Environmental groups have pledged to drop their appeal against the award of a permit for the proposed Huntington Beach desalination plant after California state water officials confirmed that the plant developer, Poseidon Water, will have to reapply for one of its permits if state regulatory amendments go into effect.

Outfall and intake problems hit OC desalination

The pilot plant for the South Orange Coastal Ocean Desalination Project in California has been forced to close down due to relocation of its outfall pipe due to heavy storms . The project has also run into problems with its intake water.

Commission extends Long Beach desalination research permit

The desalination intake and discharge research project being undertaken by the Long Bearch Water Department was granted a five-year extension by the California Coastal Commission on 14 July 2011.

Specialists team up to exploit sub seabed intake market

Sub seabed desalination plant intake company, Intake Works, has formed a partnership with specialist boring firm, Horizontal Directional Drilling (HDD), to market sub seabed intakes for seawater desalination projects.

Olympic Dam supplementary EIS satisfies opposition leader

South Australia's opposition leader, Isobel Redmond, was quoted on 20 June 2011 in the Australian media as being "satisfied" that the Olympic Dam desalination plant will not cause any damage to the local environment, including the area's giant cuttlefish population.

Adelaide first water at end of July, says minister

The intake and outfall tunnels for Adelaide's Aus$ 1.83 billion (US$ 2 billion) seawater desalination plant in Australia have been completed and first water is expected at the end of July.

The screens on the wedgewire water intake system that Poseidon is proposing for its seawater RO desalination plant at Huntington Beach, California, will be 1mm wide in order to meet new regulations

Huntington Beach is 'precedent-setting' for California

When the California State Water Board adopted new regulations on seawater desalination plants in 2015, Poseidon, the developer of a proposed 50 million gallons a day (189,000 m3/d) capacity seawater RO plant in Huntington Beach, California, went back to the drawing board on its water intake technology.

The Santa Cruz desalination pilot plant.

Santa Cruz extends consultant's role in desalination studies

The Santa Cruz City Council voted on 23 February 2011 to approve a US$ 580,000 contract extension for consultants Kennedy/Jenks to continue engineering studies and conducting public outreach for the Californian city's proposed seawater reverse-osmosis desalination plant.

The velocity cap intake at the Perth, Australia, SWRO plant after 18 months of operation.

Seawater Reverse Osmosis Desalination: Innovative Intake Designs

The search for additional reductions in the cost of seawater reverse-osmosis (SWRO) desalination needs new leads now energy recovery has gone about as far as it can go. The authors believe this can be done by improving raw-water quality using innovative intake designs. The use of "filtration" type intakes can have a significant effect on reducing the life-cycle cost of a SWRO plant. This article first appeared in the November/December 2010 issue of Desalination & Water Reuse magazine.

The facility site at SEA Lab

West Basin district dedicates desalination demo facility

California's West Basin Municipal Water District is nearing completion of its new desalination demonstration facility, following formal dedication of the plant on 12 November 2010.

The Tugun desalination plant.

Gold Coast desalination plant finally handed over

The Tugun desalination plant in Gold Coast, Australia, was handed over to the Queensland state government on 1 October 2010 and has become part of the South East Queensland Water Grid (SEQWG).

IDA publishes program for Gulf desalination and environment seminar

The International Desalination Association has published details of program sessions and topics for its seminar on Desalination and the Gulf: The Relationship between the Environment and Meeting the Region's Water Needs, which will take place in Bahrain on 6-7 December 2010.

Scilly proposes floating intake solution to sediment challenge

The Scilly Isles' council has submitted plans to the Marine Management Organisation for a new seawater intake for the islands' St Mary's desalination plant. A novel floating arrangement for the intake is designed to leave the seabed undisturbed to limit filter blockage by sediment.

Schematic of the MWDOC slant well technology

OC desalination slant-well testing to start

Testing of Phase 3 of the South Orange Coastal Ocean Desalination Project in Southern California will begin in the next few weeks, according to the Municipal Water District of Orange County (MWDOC), which held a public open day at the test site on Doheny State Beach on 12 May 2010.

CCC to rule on Cambria desalination plant studies

California Coastal Commission (CCC) staff have advised the commission at its meeting this week to agree to a US Army Corps of Engineers proposal to test a beach in the Cambria region, near San Luis Obispo, for use as beach wells for a desalination plant.

West Basin demonstrating desalination intake and outfall technologies

One of the first seawater desalination demonstration facilities to employ ocean-protection technology at the source of intake and discharge has begun construction in Southern California, USA.

Agreement at last on desalination supply for Monterey

Tentative agreement has finally been reached by the three agencies involved in developing a regional water supply project for California's Monterey peninsula, which will include a 10 MGD (37,850 m³/d) desalination facility.

California district probes impact of possible giant desalination plant

California's West Basin Municipal Water District board of directors has voted to begin an environmental impact report as part of its research towards the construction of a seawater desalination facility in the South Bay.

Tender deadlines for Hassyan slip again

Three tenders for the Hassyan 1 (formerly Hassyan-P2) power and desalination complex have had their deadlines extended.

WHO book examines calcium and magnesium in water

The desalination industry spends a lot of its time removing calcium and magnesium from water, so a book on the role and possible health benefits of these minerals should be of great interest.

Cambria desalination will bring environmental benefit

The US Army Corps of Engineers announced on 28 April 2009 that it will receive US$ 2.5 million in funding through the new American Recovery & Reinvestment Act to develop the Cambria desalination project north-west of San Luis Obispo in California.

Carlsbad seawater desalination project

State budget cuts delay Carlsbad desalination approval

Cuts to the California state budget prevented officials of the San Diego County Regional Water Quality Control Board preparing recommendations regarding the proposed Carlsbad desalination plant for the board to vote on at a meeting on 11 February 2009.

IDA extends deadline for Fellowship applications

The International Desalination Association (IDA) has extended the deadline for applications for its 2014-15 Fellowship Programme, giving candidates until 31 January, 2015 to apply.

Aerial view of the Sydney construction site.

Sydney desalter construction reaches halfway point

Construction of Sydney's 250,000 m³/d Kurnell seawater desalination plant is just over 50% complete, D&WR has been told by Sydney Water. The intake and outlet tunnels were completed in December 2008.

Spanish/Australian consortium wins 2nd Perth plant

Australia's Water Corporation has announced that the Southern SeaWater Alliance (SSWA) is the preferred consortium to build and operate Western Australia's second seawater desalination plant near Binningup.

Depth Exposed Membrane for Water Extraction (DEMWAX™)

DXV Water Technologies has designed a novel membrane system that uses natural pressure, a very low recovery rate and gravity flow of feedwater past the membrane surface, resulting in an elegant, efficient system. Since the invention of the reverse-osmosis (RO) membrane researchers have tried to harness natural water-pressure, but past attempts mimic onshore processes with their configuration, recovery and flux. This low-flux low-recovery process will require more membrane than traditional systems; however, the elimination of intakes, outfalls, pre-treatment, pressure vessels and piping, energy recovery devices and coastal land will result in a water cost that is below many traditional sources. In addition to substantial energy savings, environmental and economic benefits that the DEMWAX system offers include: Mitigation of 'Brine' Disposal - the extremely low-recovery operation results in 'brine' at approximately 2-3% more concentrated than the surrounding ocean. Mitigation of Impingement and Entrainment - the intake velocity is several orders of magnitude less than typical intakes, virtually eliminating impingement and entrainment. Scalability - the system can be readily expan ded with the addition of cartridges and pumps. This article was published in the May/June 2009 issue of Desalination & Water Reuse.


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