Anue Water offered a geomembrane-based odor-control system for wastewater treatment plants at WEFTEC in Chicago.

The solution consists of custom-designed geomembrane with integrated odor-control filters. It is designed to reduce odorous emissions for tanks and containers of nearly any shape or size. The membranes are supported by a cable grid and batter bars so that it is unaffected by aeration, changing water levels, foaming, bacteria and other conditions.

The membranes have a life expectancy of more than 10 years even in harsh environments, according to the manufacturer. The filter inserts last 9 to 18 months, depending on the emission level. The filters consist of a sponge-like media impregnated with an odor-control substance. Air flows through freely, allowing the system to breathe while odors are captured. Rainwater does not hinder odor-capturing ability.

Gas-specific filters for hydrogen sulfide and ammonia can be combined in the system for optimal control, even under grates and manhole covers. Visit www.anuewater.com.