Water. desalination + reuse

August-September 2012

Water. Desalination + reuse

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SHOWCASE Info and contact details for most companies in Showcase are in the Suppliers section of www.desalination.biz Met-Pro claiMs unique PuMP for sW/BWro desalination A fibre-reinforced plastic (FRP) pump designed specifically for use with seawater and brackish-water desalination systems has been launched by Met-Pro Global Pump Solutions Fybroc. The company claims that the Fybroc Series 8500 AllFRP Vertical Turbine Pump is the only one of its kind: the first corrosion-resistant vertical-turbine pump with the casings and mixed flow impeller constructed from homogeneous FRP materials. Designed for use with seawater intake, brackishwater reverse-osmosis, brine and transfer applications, The Met-Pro Fybroc Series 8500 the pump comes in four vertical-turbine pump. sizes with capacities up to 1,700 GPM (386 m3/h), head to 70 ft (21 m) per stage and working pressure to 150 psig (11.4 bar). design softWare launched for industrial ro and iX systeMs German chemicals company Lanxess has launched a software design tool for reverse-osmosis (RO) and ion-exchange (IX) systems in industrial water treatment. The LewaPlus software allows for dimensioning of RO and IX systems under a variety of system configurations, including some unique process configurations only available with Lewatit and Lewabrane product technology. Lanxess claims the following benefits for the software: l A new user interface to assist in organization of design project files, and linkage to data sheets and material safety datasheet documentation (for IX) l A single water analysis data entry screen, with RO scaling calculations, suitable for both IX and RO applications l Advanced RO system configuration options with automatic calculation of a recommended array for optimization of system sizing l Immediate calculation of system performance, including feed pressure calculations and permeate quality on a single screen in the RO module l Output of IX and RO system design parameters and effluent (permeate) quality in an easy to manipulate printed output. neW MBr systeM and uf MeMBranes froM hyfluX Singapore-based Hyflux Ltd unveiled a new energy-efficient membrane bioreactor (MBR) and new ultrafiltration (UF) membranes at the Singapore International Water Week in July. The PoroCep® hollow-fibre submerged MBR will offer one of the highest energy-efficiencies and membrane packing densities in the market, says Hyflux, addressing the critical issues of water quality, space and lifecycle costs faced by industries and municipalities. | 40 | Desalination & Water Reuse | August-Septemver 2012 PoroCep membranes are made of high-density polyethylene, a non-toxic, non-leaching material with excellent tensile strength and strong pH and oxidation resistance. Its asymmetric, slit-pore structure ensures high-quality permeate despite long-term fluctuations in feedwater quality. The Kristal 600ET3, which is certified to the NSF Standard 61, is made of modified polyethersulfone. This has the advantage of superior tensile strength while filtering at high flux rates because of the higher polymer density of the tri-bore fibres compared with other fibre configurations in the market. This in turn translates into greater membrane durability and lower replacement costs for users. Like the Kristal single-bore series, Kristal 600ET3 delivers superior permeate quality. The membranes have been proven to effectively remove the main drinking water contaminant, cryptosporidium. Their effectiveness in rejecting suspended solids and microorganisms is manifested in consistently low permeate turbidity, silt density index and total bacterial/viral counts, despite fluctuating feedwater quality. Mint can save MeMBrane Plants' oPerating costs A water quality monitoring system built up and commercialised by a spin-off company from Singapore's Nanyang Technological University (NTU) could save membrane water treatment or desalination plants up to Sing$ 200,000 (US$ 157,000) per year. Membrane Instruments & Technology (MINT) is marketing the Memshield system as a 3-in-1 system as it can : l Monitor water quality in the water treatment process and identify the presence of any bacteria or contaminants l Detect any broken membrane filters in the treatment plant l Pinpoint which filter is broken – accurate to 1 in 100,000 filters. All water treatment plants using membrane technology are required to be able to perform the three processes to comply with international standards, such as those set by the US Environmental Protection Agency. However, the processes are currently being done separately using different methods. Founder and general manager of MINT, Dr Adrian Yeo, an NTU graduate, said this is where automated technology can play a part to increase productivity and reduce cost at the same time. The accurate, real-time data feed and analysis provided by the system will also give water plant managers crucial insight into their water supplies. It is now being tested by PUB, Singapore's water utility, at the Bedok NEWater Factory and Chestnut Avenue Waterworks. Two large water companies in France and Australia have also recently purchased the system for trial. A typical water treatment plant, which processes 200,000 m3/d of water, would require about 10-12 Memshield units, each costing approximately Sing$ 10,000 (US$ 7,850). This means a short payback period of just six months. Modular evaPorator released for oil sands Market Aquatech International unveiled its SmartModTM modular evaporator technology for the oil sands market at the 2012 Global Petroleum Show in Calgary, Canada, in June. Flexible and redeployable, SmartMod is claimed by Aquatech to be the evaporator system with the lowest capital-expenditure

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