Water. desalination + reuse

SHOWCASE | 34 | Desalination & Water Reuse | May-June 2014 AdvAnced ZLd process cLAims Lower energy And costs Swiss process water purification company Aquarion Group has introduced ZLD-ECO, an advanced hybrid zero liquid discharge (ZLD) system, which optimizes the ZLD process. ZLD-ECO utilizes innovative, proprietary pretreatment processes to reduce thermal treatment, resulting in lower energy and chemical consumption, and reduced capital cost. The process uses less energy by capturing and reusing the waste energy and recycling it for application in other process steps. This energy return optimizes flux rates with respect to membrane technologies. ZLD-ECO provides high recovery rates of 90-99%, depending on the source water. "The term 'ECO' emphasizes the highly economical aspects of this system," said Karl Michael Millauer, CEO of Aquarion Group. " We believe that, with its lower capital and operating expenditure, ZLD-ECO is the lowest cost technology available to achieve ZLD." ZLD-ECO features a modular, compact design with short production times that can be easily scaled up from plants that produce as little as 1 m³/h of treated water to more than 1,000 m³/h based on the system configuration, the type of source water and its specific chemistry. It can be used to treat salt water, industrial sewage, process water and recycled water. It also allows for the removal and recycling of expensive materials in the wastewater – for example, metals like silver, nickel or copper used in the electroplating process. ZLD-ECO can be used for a variety of applications including power plants, mining, the chemical and electroplating industries, upstream oil and gas, both on- and off-shore, and downstream oil & gas facilities. cerAmic fLotAtion-fiLtrAtion pAckAge on show in LAs vegAs Integrated ceramic flotation-filtration technology was introduced by German startup company akvolution GmbH at the AWWA/AMTA Membrane Technology Conference & Exhibition in Las Vegas in March 2014. The company says that its advanced ceramic materials enable a cost-competitive compact system to operate under harsh conditions, delivering constant high-quality filtrate while drastically reducing energy demand - saving 90% of energy costs - and environmental impact. akvolution is targeting its akvoFloat™ technology at pilot projects in oil & gas, semiconductor, food & beverage, pulp & paper and mining industries. It is also looking at seawater desalination pretreatment. The company, which is a startup from the Technical University of Berlin, is offering both skid-mounted and containerized package plants ranging from 200 to 800 m 3 /d. The utilization of advanced ceramic materials used for both bubble generation as well as filtration substantially reduces equipment needs, saving up to 90% of energy consumption, up to 70% of carbon footprint and up to 20% of area footprint. dow And hAier Agree new domestic ro membrAne suppLy A new collaboration agreement has been finalised between Dow Water & Process Solutions (DW&PS) and Chinese global domestic products provider Haier for continued use of Dow membranes. The agreement came at the end of the previous year- long agreement begun in January 2013, under which Haier purchased residential FilmTec™ reverse osmosis (RO) components for its high-end residential water purification products. "The cooperation between Haier and DW&PS worked out very well over the last year, and we look forward to continuing our collaboration to provide safer, healthier drinking water to China," said Lance Johnson, Asia Pacific commercial director, DW&PS. The residential components involved in the new agreement are US-made products, processed from fully automated and highly efficient production technologies. Dow says that all specifications of these products measure significantly above international and Chinese standards. "We are confident in the differential advantages that FilmTec RO brings to our clients in terms of performance and durability," adds Johnson. "Dow is committed to the development of the water purification market in China to provide high quality water, essential for a high-quality life." bench-top uv digester needs no speciAL set-up UK company Modern Water plc launched the UVI4000 ultraviolet (UV ) digester on 4 February 2014, a quick and easy method for UV treatment of aqueous samples. The machine eliminates organic compounds found in aqueous samples, enabling more accurate sample analysis. The UVI4000 is a compact, competitively priced bench- top device. While other UV digesters may require protective glasses or a fume cupboard, the UVI4000 needs no special set-up or protective arrangements. It has a direct sample input/output and is easily connected to a computer via a USB. The user-friendly control program, which displays the process as it happens, allows both the sample output volume (10-100 mL) and irradiation time (1-60 minutes) to be easily controlled. The digester can be used with Modern Water's portable trace metals analyser, the PDV6000ultra, or more generally for a range of analyses that may require UV sample preparation. Neil Townend, managing director for Modern Water's Monitoring Division, added: "We use UV in a lot of our own method verification and have received many enquiries from interested end-users. After further market research, which found nothing suitable that met our needs, we decided to develop our own cost effective solution." Modern Water's UVI4000 UV digester

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