Today’s wastewater treatment facilities deal with numerous odor challenges. From pump stations to head works, primary clarifiers, digesters, lagoons and sludge handling areas, foul odors come from a wide-variety of sources and can be difficult to fully address.

In addition, everything from hydrogen sulfide to ammonia, sulfur dioxide, skatoles, mercaptans, amines and indoles also add to this wide-mix of odor sources – rendering comprehensive odor management a top priority.

While odor management has always been important for these facilities, there is an even more pressing need for the use of eco-friendly solutions. Thanks to the rise of urban sprawl, countless wastewater treatment facilities are now located in heavily populated areas. Many facilities now have homes, schools, parks and other commercial and retail buildings as their new neighbors — making both safety and odor mitigation a huge consideration.

According to this recent World Water Magazine article, authored by Dr. Laura Haupert and Ron Mulford of OMI Industries, because of this demographic shift, eliminating foul odors is not enough. Today’s eco-friendly industrial odor-control solutions must also be non-toxic to support the safety of industrial employees, the public and the environment at large.

It’s now possible for wastewater treatment plant managers to use solutions that avoid the use of odor masking agents, which can be toxic and have been scientifically proven to be unsafe for the environment. The most viable eco-friendly solutions contain natural ingredients, such as essential oils, food grade surfactant and water.

In addition, many wastewater treatment facilities use cutting-edge systems for the simple, effective and economical delivery system specifically developed to disperse Ecosorb® water-based odor eliminating neutralizers. Developed by OMI Industries, Ecosorb is an eco-friendly odor abatement solution often used with landfills, oil refineries and municipal wastewater facilities.

With these types of systems, the general mechanism for neutralization of odorous compounds includes adsorption, absorption, solubility enhancement, distribution constant enhancement and reactions.

In addition, odorous gases, such as hydrogen sulfide, can be neutralized by the atomization, which can be applied via airborne treatment using a vapor phase system.

The vapor phase system produces sub-micron droplets of the solution, which is accomplished by a centrifugal pressure blower that intakes atmospheric air. The intake air stream is sprayed with the odor neutralizers, pulled through the blower and finally dispersed on the outlet side of the blower.

Overall, suburban sprawl and development has significantly impacted wastewater treatment plants and how they deal with neighbors. There is often a dramatic rise in odor complaints, which can end up in the press. This can be a major challenge that keeps plant managers up at night. However, with the right combination of cutting-edge science and equipment, it is possible to safely and effectively mitigate all odors coming from a wastewater treatment facility.

To read the full article World Water Magazine article click here and scroll to page 39.


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Odor Control vs. Emissions Control
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