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“Water Chip” Could Give Simple, Portable Desalination

Written by , on July 19, 2013

Chemists at the University of Texas at Austin and the University of Marburg in Germany are developing a new technology for water desalination which could eventually be used in simple, portable, low-energy devices. The researchers apply a small voltage to a plastic chip filled with seawater. The chip contains a microchannel with two branches. At […]  Read more »

Peak Water

Written by , on June 5, 2013

The US Geological Survey has released a report highlighting the alarming rate of groundwater depletion in the United States. The report says that between 1900 and 2008, the US lost 1,000 cubic kilometers of water from its 40 major aquifers – that's an average rate of 9.2 cubic kilometres a year. Even more alarming is […]  Read more »

New Nanotechnology to Clean Polluted Water

Written by , on May 9, 2013

Scientists from Australia's Deakin University, together with French colleagues, say that they have manufactured a lightweight and reusable material that can absorb up to 33 times its weight in a wide range of spilt oils, chemical solvents and dyes, while repelling water. Deakin University's Dr Wei Wei Lei said that "The effective removal of oils, organic […]  Read more »

Nanotech Device Purifies a Family’s Water for $2.50 a Year

Written by , on May 8, 2013

Researchers at the Indian Institute of Technology in Madras have developed a simple point-of-use water filtration technology,using nanomaterials to filter and clean the water, which they say is effective for producing drinking water at a cost of just $US2.50 per year per family. The device uses a two-stage process to purify the water. In the […]  Read more »

A Billboard That Produces Drinking Water

Written by , on February 25, 2013

Peru's capital, Lima, has very high humidity but hardly any rain. Engineers from the University of Engineering and Technology have taken advantage of the high humidity to build a billboard which gathers the water through reverse osmosis and purifies it to give clean drinking water.  Read more »

Glass “Sponge” Separates Oil from Water

Written by , on October 23, 2012

Dr. Paul Edmiston and students at the College of Wooster in Ohio have discovered a material which absorbs small organic molecules while repelling water. The material, which they call "Osorb", is a nano-engineered glass that can absorb hydrocarbons, volatile organic compounds, pharmaceuticals, pesticides, and solvents which are either dispersed or disolved in water. The absorbed […]  Read more »

Cheap Solar Desalination Still for Developing Countries

Written by , on September 11, 2012

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Producing Energy by Treating Waste Water

Written by , on August 13, 2012

Israeli company, Emefcy, has developed a microbe-based technology that harvests energy while treating waste water. The process starts with the same principle as most wastewater treatment – water is aerated so that bacteria in the liquid breaks down organic material. But instead of using electricity to push air into the water, Emefcy uses a permeable, […]  Read more »

Building Cladding Controls Heat & Purifies Water

Written by , on June 22, 2012

The Center for Architecture, Science and Ecology in New York has come up with a building exterior that not only helps the interior comfortable but purifies water. The exterior surface of the building is clad in modular glass blocks which are configured to capture, refocus and intensify sunlight. Greywater from sinks, showers and hand washing […]  Read more »

Lotus-shaped Solar Generator

Written by , on June 20, 2012

Monarch Power, a private research and development company in Arizona, is developing a lotus-shaped solar collector that is expected to produce up to 3 kilowatts of solar thermal power, as as well as steam for heating. The company also expects that the solar concentrator could be used to produce up to 3 kilowatts of solar […]  Read more »