Tag Archives: water

Dirty water in, clean water out

Lifesaver water purification bottle The Lifesaver is a water bottle–but not just any water bottle. Through "an advanced ultra-filtration membrane that incorporates a high specification carbon block" it can convert dirty water to clean in a matter of seconds–you put in the water, pump it through the filter a few times, then drink. The cartridge is supposed to be able to filter out waterborne pathogens and eliminate bad tastes and odors, too. The replaceable cartridge has a filtering capacity of 4,000 to 6,000 litres, so it’s not short-lived: 700 litres is a year’s supply of water for one person. The military is interested, naturally, but an even more important application would be to supply clean drinking water after disasters such as the Boxing Day tsunami in 2004 or Hurricane Katrina: instead of distributing bottled water, you could distribute bottles that clean the water that’s at hand. And even in the absence of disasters, access to clean water is a worldwide problem.

Hmmm. My daughter’s water bottle is starting to smell funny. Maybe I should be getting her one of these…

Or maybe the Lifestraw is the way to go. It’s a plastic pipe filter 25 centimetres long and 29 millimetres in diameter that costs just a few dollars and can purify up to 700 litres of water.

A word of advice, though: when giving a Lifestraw to a suffering disaster victim, find a different way to instruct him in its use than telling him to "suck it up."

(Via Gizmag.)

(Photo from Gizmag.)

[tags]water,disaster relief,technology[/tags]

Watering Southern Australia (With Ziploc Bags)

Australian Ocean-Jj-001South Australia is short on fresh water. North Australia’s got plenty. Rather than build a pipeline or indulge in large scale watershed engineering, Dr. Ian Edmonds proposes filling giant plastic bags with northern water and letting them float south in the East Australian current. There’s your roughneck of the twenty-first century: rather than drilling for oil, he’s heaving water bags out of the ocean. [treehugger]

Your monthly serving of ‘wet Mars’ waffle

Regular readers will know how frustrated I get by the continual see-sawing about water on Mars … but it’s like a particularly thick and itchy scab I just can’t leave alone. So here we go again – remember the terrain that was too hilly to have been evidence of oceans on the Red Planet? It were disfigured by a massive warping of the Martian rock! Says one Mark Richards, “This really confirms that there was an ocean on Mars.” Right … until next month at least. It’s a shameful thing to admit, but I’m so sick of this whole business I was actually pleased to hear New Scientist had to retract the ‘puddles of liquid’ story. Can we please just get some proper damned missions out there and sort this out once and for all? Either that, or stop making dramatic sweeping announcements based on insufficient evidence?