State University of New York Institute of Technology
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Gritty Times

Grits Effect on the Wastewater Treatment Process

When storm water runoff enters municipal water treatment systems it promotes wear and tear on the equipment.  The grit that enters the system varies depending on the soil indigenous to the region being considered. 

The finer the consistency of the grit the harder it becomes to remove.  Methods to remove this grit have changed over the years.  Vortex systems are the preferred method of removing grit in today’s industry.  The vortex system, utilizing rotational forces to separate grit from organic material, has proven to operate with higher efficiency then traditional methods. 

Different types of Vortex systems exist, the difference lies in the head loss caused by the style of systems and thus the operational efficiency offered.  High, medium, and low head loss systems are offered each with varying efficiency rates.  How does a municipality choose which one is right for them?  This depends on the demand brought on by the soil in that region, and of course the availability of funds.  For example municipalities with coarse grit in their region can operate using a low to medium head loss system. 

 For more information on this topic check out the full article at the following address.

 http://www.wwdmag.com/Weighing-Your-Grit-Removal-Options-article10256


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