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Solar Powered Water Mixing with Implications for Illinois POWER HOUR WEBINAR
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Solar Powered Water Mixing with Implications for Illinois POWER HOUR WEBINAR

When: Friday, March 2, 2012
From 10:00 am to 11:00 am CST
Contact: Lisa Hoffhines

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Solar powered water mixing is gaining greater usage in reservoirs, finished water tanks and wastewater treatment plants. In the last 20 years solar panels have increased in efficiency and utilize indirect light as well as direct light. Solar power is now utilized for a variety of water circulation applications. The emerging science of water circulation has been shown to provide numerous water quality benefits. Solar panels produce sufficient power to create an upwelling motion by a carefully designed impellor system. The result is an almost frictionless flow to move layers of water long distances as well as promoting vertical and horizontal circulation. As a result, solar technology meets mixing objectives in potable drinking water tanks, wastewater plants, and freshwater reservoirs. Energy requirements for solar water-mixing technology have been designed to run on low wattage solar energy. New advances in solar-powered water movement has been applied to a variety of unique applications in the last five years including blue-green algae reduction in lakes, municipal odor control, and highgrid aeration reduction in activated sludge. A recent qualitative assessment indicated that solar powered circulation (SPC) in selected wastewater test sites, were shown to augment the mixing and oxygenation required for digestion, while reducing aeration & electricity consumption, and lowering greenhouse gas emissions, sludge buildup, and odor events. Solar powered circulation transformed the bacterial community to those performing aerobic digestion in the upper water column and anaerobic digestion in the slurry and sludge. One of the fastest growing solar mixing applications is in potable water tanks. Solar powered water mixing eliminates summer stagnation, winter ice formation, and lowers chlorine by-product formation. Solar powered mixing is also being used in conjunction with air striping THMs from potable water reservoirs. Solar water mixing is effective as well as affordable and currently in several sites in Illinois. This discussion will also touch on an effective low energy grid type of mixer used in potable water tanks and waste water systems.

Michael Christensen, SolarBee Inc.,

This webinar will begin at 10:00am and conclude by 11:00am CST. Earn up to 1 PDH or RTC hour.   After registering with Illinois Section AWWA, attendees will be furnished via email with all materials and links needed to participate in the webinar. Questions? Call 866-521-3595 Ext. 3

Free for Illinois Section AWWA Members • $25.00 for non members

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