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The K Problem: Treatment Options and Process Monitoring Solu…

Ostara has developed a method for capturing precious nutrients including K during the treatment process.

For desalination plants treating seawater, the problem of brine disposal is potentially even greater. One 1985 study of the contaminated ag waste water in the Central Valley’s heavily polluted San Luis Drain showed the water contained 9.2 grams of total dissolved solids per liter of water. Clean seawater from the Pacific Ocean has around 38 grams of dissolved solids per liter.

That might not seem like a huge problem: after all, people will shell out between five and ten bucks a pound for sea salt, which is just seawater with the water removed. But it adds up. If the Carlsbad plant puts out 50 million gallons of freshwater a day as advertised, that means (at 38 grams per liter, converted from the metric) it’s removing 417,270 pounds of salt and other solids a day from that water.

And unless the people of San Diego start eating a pound of sea salt for every three gallons of freshwater they drink, bathe in, or water their gardens with, that means a surplus of removed solids piling up at the desal plant.

Chris Clarke explains more of the waste realities for desalination here.

Photo credit: NBC News

The CEO of Alibaba, Jack Ma is spearheading. #WaterWednesday

The CEO of Alibaba, Jack Ma is spearheading. #WaterWednesday

Estimates show that U.S. companies could save up to 28 billion gallons of water per year if they optimize cooling in their buildings. That’s as much as over 750,000 Americans use at home in a year! Environmental Defense Fund worked with AT&T to develop a framework and set of tools that can help your company reduce its water use from cooling and manage its water risk.
water efficiency toolkit (x)
imagewin:

A wave viewed from underwater

imagewin:

A wave viewed from underwater

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Robots automate testing for bacteria, including coliforms

space-robotics:

Taihei Environmental Science Center has developed a system that automatically performs water quality testing, and can detect bacteria such as E. coli. In the past, this work had to be done manually. The system uses three robots to completely automate all stages of the process, from…

Neat!

pimpmyycamel:

Darbandikhan, Iraq | Source

Is this the big lake?

pimpmyycamel:

Darbandikhan, Iraq | Source

Is this the big lake?

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Real Time Fresh Water Sewage Monitoring

Water Access and Monitoring Applications List

Looking for a public drinking fountain? WeTap can help if you have an Android device. iOS functionality coming soon. Wondering about the drinking water quality of a place you are visiting? mWater is building an open source database of global drinking water resources. On the conservation and monitoring side of the conversation are the following services;

WaterSmart Software works with utilities to provide end users with an aesthetically designed report showing usage comparison with neighbors.

MeterHero has the same goal in mind however monitoring is accomplished by end users entering a home water meter number into the system for comparative tracking. It also works for electric meters and can be applied to business sustainability initiatives as well.

Driblet installation requires plumbing expertise which was a deterrent in consumer adaptation during beta testing however the team is focusing on larger entities with more incentive to reduce water bills. Shower With Friends might have picked up where they left off in the consumer sector.

Know of additional applications to expand on this list then please reach out. 


While living in Tokyo, Philipp Hutfless, an industrial designer from Germany, saw how much food the Japanese import from abroad. The industrialized nation just doesn’t have a lot of room for agriculture, neither in rural areas nor in cities.
His response was to develop Vereos, an idea for coastal cities with limited space for growing food. It’s a floating greenhouse that recycles freshwater and gets power from built-in solar panels.

Ben Shiller for Fast Co-Exist (x)

While living in Tokyo, Philipp Hutfless, an industrial designer from Germany, saw how much food the Japanese import from abroad. The industrialized nation just doesn’t have a lot of room for agriculture, neither in rural areas nor in cities.

His response was to develop Vereos, an idea for coastal cities with limited space for growing food. It’s a floating greenhouse that recycles freshwater and gets power from built-in solar panels.

Ben Shiller for Fast Co-Exist (x)