Author: Water. Desalination + reuse

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The day is coming when membrane technologies for hitherto unthinkable purposes, such as rural water supply in Africa, will be competitive with the ever more difficult search for conventional supplies. The key element is energy, and these authors argue that renewable energy from the sun is not being given enough attention by governments, developers and…

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.…

PESU membranes in municipal water treatment applications

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In his previous article (D&WR August/September 2009), Dr Maletzko dealt with the use of polyethersulfone (PESU) membranes in pretreatment systems for seawater reverse osmosis. Here he looks at applications for municipal water treatment and claims improved virus removal and twice the permeability of PVDF membranes. This article first appeared in the November/December 2009 issue of…

Resort uses desalination in innovative reuse project

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The Cache Creek state-of-the-art water reuse project in the USA is very interesting for its use of the Vibratory Shear Enhanced Process (VSEP) for brine volume reduction. However the use of Electrodialysis Reversal (EDR) desalination prior to this process is also of interest, and the project s award from the WateReuse Association (2009 Project of…

Looking back on two years of change in desalination

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At the start of Lisa Henthorne’s presidency, at the Maspolomas Congress in 2007, the board of the International Desalination Association initiated a five-year Strategic Plan. Already parts of the plan, such as better public relations, membership growth, including a Young Leaders program, and the new IDA Journal are all up and running. D&WR asks Henthorne…

Algerian Desalination Market Developments

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In the current market situation, where the financial crisis has frozen most project finance, Algeria maintains its commitments to develop a desalination infrastructure and continues to pursue a milestone program of desalination capacity building which sits among the most ambitious in industry history. By 2011, 13 seawater desalination projects with a total capacity of 2.26…

Intake and pretreatment considerations for Coquina Coast

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While the attention of US desalination watchers has been focused primarily on Carlsbad and Huntington Beach on America’s west coast, on the east coast, plans for a similar-sized seawater desalination plant have been moving forward with much less fuss. The Coquina Coast Seawater Desalination Alternative Water Supply Project proposes a 50-80 MGD (189,000 m /d…

UF solution to rural water supplies?

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Sub-Saharan Africa is not a region generally associated with membrane technology, but that is now changing. Desalination projects are already appearing in, for example, South Africa and Ghana, and South Africa is fast developing its own technologies. Water treatment manufacturer Ikusasa is developing its own UF modules both for rural water supply and for desalination…

Solar pond and membrane distillation merger in Nevada University

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Membrane distillation (MD) is a thermally driven membrane separation process that involves evaporation of volatile constituents (water in desalination applications) through a hydrophobic, microporous membrane. The vacuum-enhanced MD process recently patented by researchers at the University of Nevada, Reno in the United States has now been coupled with some equally interesting research at the university…

Navajo powerplant could be key to Sandoval BWRO

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