Cincinnati-area sanitation district saves on odor control with ECO2 solution

Feb. 1, 2006
Sanitation District #1 of Northern Kentucky wanted to compare technical performance and economics of ECO2 SuperOxygenation technology from Indianapolis' Eco-Oxygen Technologies LLC, with its existing chemical treatment program to reduce odors and corrosion problems from hydrogen sulfide...

RICHWOOD, KY, Jan. 30, 2006 -- Sanitation District #1 of Northern Kentucky wanted to compare technical performance and economics of ECO2® SuperOxygenation technology from Indianapolis' Eco-Oxygen Technologies LLC, with its existing chemical treatment program.

The Richwood force main, south of Covington, KY, and Cincinnati, OH, was selected because, with a nine hour retention time, it was a notable source of odor that produced complaints from tenants in an office park located near the discharge. The odors were due largely to hydrogen sulfide (H2S) concentrations that, in addition, to producing a foul, egg-like smell, can also create corrosion problems.

Eco-Oxygen was engaged to design, install and operate an odor control system at the Richwood pump station for a period of two months during Fall 2005. Gas phase and liquid phase H2S levels were monitored at the force main discharge. Successful performance of the system is shown by OdaLog readings indicating a reduction in H2S from untreated levels of 500 ppm down to <1 ppm. Technical data plus before and after OdaLog graphics are available by clicking here...

Sanitation District #1 serves suburban Cincinnati communities in Boone, Campbell and Kenton Counties in northern Kentucky. The Richwood force main is in Boone County near Union, KY. Hydrogen sulfide readings taken at the force main discharge were reduced to non-detect levels thus eliminating related odor and corrosion potential. In addition, the economic and environmental impacts were determined to be positive, including lower anticipated capital costs for additives and equipment.

Eco-Oxygen Technologies LLC (www.eco2tech.com) is an independent company with headquarters in Indianapolis. The ECO2 technology is the pioneering effort of Dr. Richard Speece, Centennial Professor Emeritus of Civil and Environmental Engineering at Vanderbilt University, who invented the Speece Cone, a device originally used to add oxygen to the bottom of lakes to enhance downstream fisheries. The ECO2 method is a simple process based on the scientific principle of Henry's Law. No chemicals and no moving parts other than standard municipal wastewater pumps are used. The result is a robust, reliable, economically competitive and environmentally friendly technology.

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