DrinkingWater
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Graphene film makes dirty water drinkable in a single step
Every year, millions of people around the world die from drinking unclean water. Now, researchers have developed a process that can purify water, no matter how dirty it is, in a single step. Scientists from Australian research organization CSIRO have created a filtration technique using a graphene film with microscopic nano-channels that lets water pass through, but stops pollutants. The process, called "Graphair", is so effective that water samples from Sydney Harbor were safe to drink after being treated.
Gates Foundation collaborates with Manchester University to develop potable toilet water
It's an unsettling thought, having to drink water from that bowl in your bathroom, but if the need ever arose, wouldn't you be glad to know it was clean and safe? Dr. Sarah Haigh, a researcher into the properties of nanomaterials at Manchester University, is currently pursuing this goal with a $100,000 grant from the Bill and Melinda Gates Foundation. With the help of nanomaterials and bacteria, Haigh believes that hydrogen can be easily extracted from not only the water, but human waste itself, which could then be processed into clean water. Should the system work effectively, Haigh stands to receive an additional $1,000,000 grant to further her research and develop inexpensive purification systems for use in nations without modern infrastructure. And you thought nothing worthwhile would come from purchasing Microsoft Office.
Watermill pulls drinking water from thin air
Sure we've seen glorified dehumidifiers like this before, but we're a sucker for any aquatic wonder which claims to solve the world's drinking water shortage. The exterior wall-mounted Watermill from Element Four is the latest "water from thin air" contraption and produces up to 3.2 gallons of water a day, pumped through a trusty ultraviolet sterilizer. But more importantly, it offers to hydrate your family of 6 (according to EF) for a mere thirty-five cents a day in power, not including whatever price Element Four decides to sell it for. Or you could just stick a bucket on your roof and be done with it -- we hear it rains occasionally.[Via Gadget Review]
Nano-solution could clean water in developing nations
Hard to say if this solution will be cheaper than the bordering-on-free LifeStraw, but a team at the University of South Australia has developed a low-cost method for removing bacteria and other contaminants from water "using tiny particles of pure silica coated with an active nano-material." Professor Peter Majewski is pretty proud of the all new system, stating that it can "remove bacteria, chemicals, viruses and other contaminants from water much more effectively than conventional water purification methods." Due to its ability to function sans additional energy and its low overall cost, the team is hoping to see the creation bring clean water to developing countries. The best part? It should be available within two years.[Via Protein OS]
