Sadorus plans for water treatment

Sadorus plans for water treatment

SADORUS — The village is making plans to begin treating its water system, which has been pumping out water that residents complain tastes and smells bad.

Kerry Gifford, general manager at Sangamon Valley Public Water District, which runs the village's water system, recommended improvements to both infrastructure and treatment.

The village's wells are 106 feet deep, and water quality is suffering because of the presence of high levels of organic matter built up on the pipes, Gifford said. The organic material removes chlorine from the water and causes the taste and odor problems.

To improve water quality in the short run, Gifford recommended adding high concentrations of Clearitas, a chemical designed to disinfect water mains, followed by flushing. The water plant would also switch from gaseous chlorine to a liquid bleach system.

As a long-term solution to water quality problems, Gifford recommended removing organics from the wells through the use of an anionic pressure filter. That would allow the village to maintain compliance with Environmental Protection Agency limits on trihalomethanes, byproducts of the disinfection process that can lead to health risks at high levels.

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cpwater wrote on March 09, 2013 at 10:03 am
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Okay I usually wiki new tech like "anionic pressure filter" but it had nothing on it.  Who was the engineer who suggested this method of treatment?

Depending on the size of the community the possibility of using an ultrafilter system which captures particulates as small as 0.02 microns which includes all biologicals would be great treatment prior to chlorination.  The bad smell comes from the byproducts that are created from chlorine reacting with those particulates.  Unless of course you have hydrogen sulfide as well.  Anyways, I would suggest the above and also a reserve tank with a degassing system to insure removal of any other unwanted gases in the water.  It sounds as though the well is contaminated, is there a possibility that the well is constructed incorrectly allowing runoff to contaminate it?  I would look at that as well.

Frieso Pouwer CWS-VI, WT-1, Journeyman Plumber/Gasfitter