Water Journal : Water Journal April 2012
regular features 42 APRIL 2012 water industry news The trial, conducted at Ecogen Energy's intermittently operating gas-fired Newport Power Station showed the system used 50 per cent less electricity to desalinate water than traditional techniques. An updated design was then shown to use 95 per cent less electricity. "It has now been proven to work and as energy and water become increasingly scarce this technology is a major development. If it were scaled up to a continuously operating industry of similar size to Newport Power Station it could desalinate around seven million litres of water per day, which is the equivalent of supplying fresh water to about 25,000 people in Melbourne." Associate Professor Duke said many factories and industrial settings produced enough waste heat for this system to operate, but that currently this heat was not being harnessed. "One of the most exciting outcomes of our tests is that our system can use waste heat as low as 30°C," he said. Conventional evaporative desalination systems use 70°C or higher. "We have seen several industrial cases where there is far more waste heat available than what is needed to treat the entire site's wastewater currently going to the sewer," he said. "There are a lot of industries that are keenly watching this technology and we are already in consultation with the mining, manufacturing and dairy industries, as well as water utilities, to move to larger pilot trials." "Membrane distillation technology is just emerging globally, so our demonstration on an industry site puts us at the forefront of its international progress," Associate Professor Duke said. The project was supported by the Smart Water Fund and led by Water Quality Research Australia (WQRA) and Victoria University's Institute for Sustainability and Innovation, with support from City West Water, GWM Water and Integrated Elements. It was funded by the Smart Water Fund, WQRA and City West Water. Art Mobile Phone 'App' Opens a World of Water Sydneysiders can aim their mobile phones at art posters displayed at Taylor Square in Darlinghurst and get up-to-the- minute updates on the world's underwater kingdoms, as part of the City of Sydney's public art program. Sydney artist Lynette Wallworth's new "immersive installation" at one of Sydney's busiest public squares encourages people to use the latest 'app' technology to connect to the world's reefs and receive data on sea surface temperatures. Ms Wallworth said the public artwork was made up of two murals and seven interactive posters on the former T2 building, which come alive when viewed through the free RKVCoral application for smartphones. "The app allows you to look at the posters and see coral models descend into a moving-image environment of a reef. If you touch your phone screen again, you get access to where coral reefs around the world are experiencing hot sea surface temperatures." The installation, on display until the end of May, is part of a wider project called, Rekindling Venus, a metaphor for the worldwide cooperation that is needed to address "the most urgent scientific challenge of our time -- climate change". Sea temperature data used by the mobile phone app is supplied by the United States' National Oceanic Atmospheric Administration and is updated regularly. The free app can be downloaded from: rekindlingvenus.com/ar For more information visit: www.cityofsydney.nsw.gov.au/cityart www.aqualab.com.au email@example.com 02 9894 4511 Water Quality Multiprobes measure and store temp, pH, conductivity, LDO (luminescent dissolved oxygen), self-cleaning turbidity, chlorophyll a, bluegreen algae, redox, depth etc.. in one rugged housing. Diver Data Loggers have become an industry standard in the measurement of water level and salinity in groundwater and surface water applications. The pressure transducer, temperature sensor, salinity sensor, data logger and battery are integrated into a single robust device. Water Quality Instruments Water Level Senors Water Level Data Loggers CBS Compact Bubbler Level Sensor Low Maintenance, low power with an intelligent pump strategy, no pump maintenance or lubrication required. SDI-12, 4-20mA. RLS Radar Level Sensor Contactless and energy- efficient water level measurement. Flat antenna and inconspicuous design housing using diving bell principal. 35m range SDI-12, 4-20mA, RS-485. Aqualab Scientific is recognised as a leader in the environmental industry, supplying quality brands that customers have known and trusted for years.
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