Tag: Reverse Osmosis
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Advantages of Polyethersulfone (PESU) membranes for pretreatment for SWRO applications
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…
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Gold Coast’s twin intake/outfall tunnels save space and environment
A key part of the anti-drought strategy in Queensland, Australia, has been the construction of a 125,000 m³/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…
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Large Diameter RO Desalination Elements
In recent years, increasing the diameter of spiral elements has been studied as a method of lowering the cost of membrane treatment. It has been shown that the installed cost of a reverse osmosis (RO) plant can be reduced by up to 27% using larger diameter elements.Large diameter elements provide savings in footprint and building…
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Antiscalant removes need for acid in wastewater RO
Field trials of a new scale-inhibiting chemical for use with reverse-osmosis membranes in wastewater reuse plants show that, at a low dose rate, it can increase the solubility of calcium phosphate by over one hundred times, obviating the need for using dangerous and costly acid. Current design practices for large effluent reuse projects are focused…
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Experience helps boost production and stability at Ras Abu Jarjur
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…
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Leveraging nanotechnology for next generation seawater desalination
NanoH2O advanced membranes for reverse osmosis (RO) desalination represent a new material that enhances current polymer-based membranes with the benefits of nanotechnology. These nanocomposite RO membranes represent a step-change in productivity through improved permeability while maintaining requisite salt and contaminant rejection. Since the original publication of this concept, further development and optimization of this membrane…
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Solar powered desalination plant to open in Dubai this month: reports
A 50-cubic-meter-per-day desalination plant powered by solar energy is set to be launched in Dubai later this month, according to Utilities- me.com.
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Qatari research aims to
The Qatar Electricity and Water Company (QEWC) and Qatar Environment and Energy Research Institute (QEERI) have signed a Memorandum of Understanding (MoU) to develop two pilot projects that could ‘radically reduce the cost and energy use’ of desalination.
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Boost for San Angelo water reuse plan
Plans for a water reuse project in San Angelo, Texas, received a boost this week, with local council staff given the green light to take the next step in seeking funding for the project.
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Oman tenders for advice on desalination plans
State-owned Oman Power and Water Procurement Company (OPWP) has tendered for advisory services for its plans to up its water production capacity from 2022.