Nanoscale carbon, for example, is enabling greater efficiency and longer lifetimes for the familiar activated carbon water filter.
After all, how can one prove beyond doubt that a water filter prevented a child from falling sick?
How elaborate did a kitchen water filter actually need to be?
When it's not an emergency situation, we can go into an area and teach them, using their local resources, how to build their own water filter.
"The tea bag water filter technology sounds good especially from the point of it being one step process, with out having to do any mixing, " said Nega Bazezew Legesse of Oxfam.
We also covered several off-grid devices that we'd like to have in the event of another storm of Sandy's magnitude -- Nokero's compact SunRay Pro solar charger, Berkey's super-versatile and effective water filter and Eton's hand-crank cellphone charger.
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Janssen says that other common household items like plastic baby bottles and water filter pitchers contain bisphenol A, a chemical that mimics estrogen and has been linked in animals to infertility, enlarged prostates, abnormal chromosomes, obesity and insulin resistance, a precursor to diabetes.
Until we can get each household to have their own water filter, which is the ultimate goal, we have a couple of distribution areas where people can come with their buckets of water and run (it) through a number of filters in order to clean it.
Caerphilly-based RMB Security Services Limited's Lifestraw - A high-tech water-filter in a straw, invented and manufactured by Swiss company Vestergaard-Frandsen, which uses allows soldiers to drink clean water from any source while out on operations.
Dr Reaney said that in urban areas, where melted snow runs directly off roads and pavements into drains, snowmen would make more of a difference than in fields where it would take longer for the water to filter into watercourses.
We often take these services for granted, such as the ability of the forest to filter water or produce oxygen.
Mr. Savoni and others devised a way to push the water through the filter, a block of carbon encased in plastic, more swiftly.
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In case you don't have your smartphone app handy, the taps are equipped with LED lights to show the water's filter status as well -- blue means clean, yellow means not so much and red means you should probably get a new filter, pronto.
The microscopic whiskers can stop bacteria in a face mask or filter out water droplets in a hospital's air conditioner.
Some hooksters claim that the water-pipes are healthier than cigarettes: even though hookah also involves puffing on flavoured tobacco, the water acts as a filter.
Beyond that, it was fascinating to see seeing what Detroit automakers are doing to reduce their carbon footprints, like using green roofs that insulate their buildings, porous pavement to filter rain water and even solar panels to help power their facilities.
Ngo, 34, has a Brita filter for tap water and also keeps his pantry stocked with cases of bottled water.
The basin at Cold Ash Hill in Thatcham will collect excess water from the fields and filter it into the sewers.
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But as flamingoes tend to spend much longer filter feeding in water than these other birds, this remains speculation, Anderson says.
If they're used properly, they will last 10 years and filter 250 gallons of water every day.
According to an early participant in the project, an Elkay engineer said that was impossible, given the need to filter and chill the water.
WSJ: With Bottle-Fillers in Mind, the Water Fountain Evolves
"One of the things that is unique about this filter is even if you didn't have arsenic in the water and you only had iron, this is still a great filter to filter iron, " said David Nunley.
Japanese broadcaster NHK said Tepco was now studying a plan to circulate water from the basement through a decontamination filter and back into the reactor.
He spent the 1990s turning US Filter into the world's largest water company by acquiring hundreds of smaller outfits.
It would also greatly reduce energy costs, since reverse osmosis involves forcing water through filters to remove minerals, and the Perforene filter is so thin that much less pressure is required (graphene is a thousand times stronger than steel).
Filter cloth: synthetic textile with openings for water to escape, but which prevents passage of soil particles.
The "teabag" isn't the only interesting filtration tech on the horizon, and researchers in California are developing a filter that uses nanotech and silver to produce clean water.
If the standard were set at 10 micrograms per liter, Nikolaidis said thousands of local water systems and private wells in the country would have to filter the arsenic out to be in compliance.
Also, its polymer chemistry can be easily modified to filter or transmit compounds similar to the way it does water molecules.
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