Archive for March 28, 2014

Recovering valuable substances from wastewater

Phosphorus can be found in fertilizers, drinks and detergents. It accumulates in waterways and pollutes them. For this reason the German Phosphorus Platform has the goal to recover this valuable, but at the same time, harmful element from water. How this can be done will be shown by researchers at the Hannover Trade Fair / IndustrialGreenTec from April 7 — 11 in Hannover (hall 6, booth J18) where visitors can try out the method for themselves.

Recovering-valuable-substances Using magnets the superparamagnetic particles in the water can be removed along with their phosphorus load.

Not only plants, but also humans and animals need phosphorus, which is a building block of DNA. Many biological processes in our body can only take place if phosphorus atoms are also present. But farmers and industrial enterprises use so much of this element that soil is over-fertilized and waterways are contaminated. Read more

NASA data find some hope for water in Aral Sea basin

A new study using data from NASA satellite missions finds that, although the long-term water picture for the Aral Sea watershed in Central Asia remains bleak, short-term prospects are better than previously thought.

Aral-Sea-basinOnce the fourth largest inland sea in the world, the Aral Sea has lost 90 percent of its water volume over the last 50 years. Its watershed — the enormous closed basin around the sea — encompasses Uzbekistan and parts of Tajikistan, Turkmenistan, Kyrgyzstan and Kazakhstan.

Graduate student Kirk Zmijewski and assistant professor Richard Becker of the University of Toledo, Ohio, wanted to find out whether all of the water was gone for good, or whether some of it might have ended up elsewhere in the watershed, behind dams or in aquifers. They also wanted to gauge whether decreasing rainfall has contributed to the catastrophic water loss. Read more

Water Meter Readers are Going Places (Literally)

The Portland Water Bureau currently employs 12 water meter readers responsible for reading meters at homes and businesses on their assigned routes throughout the City of Portland. Meter readers fall under the Customer Services Group, and are based out of the Water Bureau’s Interstate Facility in north Portland.

Picture-024Meter readers work Monday through Friday, in all weather conditions including snow, ice, and frozen rain. Reading a meter may seem easy, but there’s definitely an art to it. Readers are often challenged by inclement weather conditions, piled snow, aggressive animals, parked vehicles, overgrown plants, and construction materials. Oftentimes, customers place compost and recycling carts and garbage containers over their meters on collection day, affecting access and quick reads. Read more

Giant ‘Battery’ Can Store Renewable Energy

LONDON – Norwegian hydropower schemes linked to Europe’s large wind farm projects could successfully act as a backup when wind power fails to deliver enough energy, according to SINTEF, the largest independent Scandinavian research organization.

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Smøla Wind Farm is a 68 turbine wind farm located on the island of Smøla in Norway. Researchers say energy from surplus wind power will provide “battery” power to even out energy supply & demand. Credit: Flickr/Statkraft

With both on- and off-shore wind power being seen as key to reducing the EU’s carbon emissions by 80-95 percent by 2050, a big hurdle for the technology is solving the problem of intermittent power production. Sometimes there will be too much power on offer, and at others too little. Read more

Personal Water Filter Bottle Helps Fund Fight Against Global Water Crisis

It shouldn’t be news to anybody that disposable plastic water bottles and the water that fills them are a bane to our planet. Some 38 billion plastic water bottles end up in landfills each year, and filling a one liter bottle takes three times that amount of water to produce.

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So it really ought to be a no-brainer that we should be using refillable water bottles for our own personal use. However, if you’re concerned about the quality of water you use to fill yours, perhaps it’s time to consider a personal water filter bottle – and not just any one, but one that will also help to fund the fight against the global water crisis by supporting sustainable water projects. Read more