Monday, 23 February 2015

No more waste water will be wasted now, technology to recycle waste water invented.

Do you remember that famous line from The Rime Of Ancient Mariner- "Water Water Everywhere nor a drop to drink"
To prevent mankind from facing such situation have you ever thought about converting waste water into fresh water? That too using less energy than waste water management.
A professor of Missouri University has devised a method to obtain fresh water after processing waste water, that too using less energy and minimal maintenance plus, this system can also be retrofitted with existing design of water treatment plant.
a professor of civil, architectural and environment engineering at Missouri S & T , Dr. Jianmin Wang, developed the system to save energy on the waste-water treatment process. "Nearly one percent of america's total energy produced is being consumed by waste water management"  Dr. Wang states
In most of  waste water facilities, the treatment plant uses energy to put air in the tanks. Microorganisms then feed on oxygen, at the level of 2 milligram oxygen per liter. This amount is adequate for microorganisms.
However, giving the microorganisms less than 2 milligrams per liter of oxygen extends their lives and increases their efficiency, all at a 30 percent less energy cost than the current method.
Beyond all this he has also developed a system called Alternating  Anaerobic-Oxic-(A30)Wang,  that removes pollutants from waste-water, along with nitrogen and phosphorus, without the use of chemicals. It also uses 10 percent less energy than current similar treatments. The accessibility of waste water can be increased By technologies like the A30.
Third system which Wang developed is an anaerobic digester, that turns waste water sludge into bio-gas.. It also operates itself, so requires less energy to work.

"Advances such as these demonstrated by Professor Wang represent the next wave of wastewater management," says Dr. Glen Daigger, past president of the International Water Association. "Given growing water and resource constraints on the planet, we must turn to sources such as used water - to both supplement our water supply and to do this with a reduced environment footprint."

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