Chemical-Free Odor Control with Biotrickling Filtration

KCH Engineered Systems designs and manufactures a Biotrickling Filter System to remove high levels of hydrogen sulfide (H2S) gas and other odors from municipal and industrial processes. The system effectively and efficiently removes 99 percent of H2S without the use of dangerous chemicals. Instead, a simple non-proprietary nutrient is used to promote biological growth on a synthetic media.

The standard KCH Biotrickling Filter System, also sometimes called a bioscrubbing system, is a vertical, countercurrent vessel designed for continuous operation. KCH Biotricklers can also be designed for a rectangular, low-profile configuration utilizing a structured high-density media.

These systems are constructed of POLYLAST® or POLYSTRONG® material, providing the structural integrity, UV protection and corrosion resistance required for outdoor installations.

The Biotrickling Filter System can include additional components needed to provide a complete functioning system such as: non-proprietary nutrient systems, different vessel and media configurations based on application, integral mist eliminator, recirculation pump, direct drive fans, ducting, pH meter, integral sump or remote tank for nutrient storage, and OSHA-approved ladders or platforms. The system is ideal for applications in municipal wastewater treatment plants, pump stations, high-level H2S applications, or degasifier or aerator off-gas odor control.

Biotrickling Filters use a synthetic media to support the growth of naturally occurring microorganisms to convert H2S into a dilute acid solution, part of which is discharged via a continuous water make-up or overflow. The Biotrickling Filter uses continuous recirculation of a nutrient-rich solution to promote the biological growth. KCH offers a non-proprietary nutrient supplement to feed the microorganisms and water to maintain the optimum pH.

Benefits of the system include: low operating cost, inorganic media guaranteed for 10 years, 99 percent H2S removal efficiency, POLYLAST® or POLYSTRONG® vessel material, maximum resistance to UV exposure, low empty bed retention time, low water usage, non-proprietary nutrient system, no on-site storage of dangerous chemicals, and it can be used as a first stage unit to extend the life of carbon units.

KCH Engineered Systems manufactures corrosion resistant ventilation and odor control systems for the industrial and municipal markets. For more information, visit www.kchservices.com.

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