Safe Chemical Solutions Since 1942

Use RYDALL OE to elminate these common odors...

  • Ammonia (NH3)

  • Benzyl mercaptan (C6H5CH2SH)

  • Crotyl mercaptan (CH3-CH:CH-CH2SH)

  • Ethyl mercaptan (CH3CH2SH)

  • Ethyl sulfide (C2H5)2S

  • Hydrogen sulfide (H2S)

  • Methyl sulfide (CH3)2S

  • Skatole (C9H9N)

  • Thiocresol (CH3-C6H4-SH)


Use RYDALL OE  in any facet of wastewater treatment process...

  • Sludge handling

  • Lagoons, tanks and storage sites

  • Lift stations

  • Loading/unloading

  • Dewatering

  • Collection system

  • Debris screening 

  • Aerobic/anaerobic digesting

  • Septage area/pump-out

  • Site/facility perimeter 


RYDALL OE Odor Eliminator: The Environmentally Beneficial Odor Control for Wastewater



Whether on a municipal or industrial level, wastewater odor can pose health and nuisance issues to maintenance personnel, as well as the surrounding community and environment.

RYDALL OE Odor Eliminator  is a unique, environmentally beneficial biocatalyst containing a complex mixture of nutrients, vitamins, and trace elements specifically designed to eliminate odors and corrosion problems naturally. Unlike other odor eliminator or odor control products, RYDALL OE  DOES NOT mask odors, utilize essential oils that could lead to fouling of equipment or introduce new bacteria or enzymes.

RYDALL OE  eradicates odor-causing compounds by disallowing the formation of foul substances such as hydrogen sulfide (H2S) and ammonia (NH3) by stimulating the existing aerobic and anaerobic bacteria already prevalent in wastewater and enhancing the natural biological cleaning process.

A technologically advanced product that is natural in origin, safe to handle and organically biodegradable in application, RYDALL OE  is non-toxic to humans, animals, fish and plants. There are also no fumes or irritating vapors, making it safe to handle even at high concentration. It is also non-flammable and non-corrosive to metals, concrete and plastics making it ideal not only for wastewater applications, but also landfills, composting operations, scrubber systems and solids handling facilities. RYDALL OE  can used as either a liquid- or vapor-phase solution for your wastewater odor issues.

A Closer Look...


Case Study Overview

A specialty cheese manufacturer in Wisconsin had an ongoing odor problem since installing a wastewater treatment system, which includes a 4,000-gallon wastewater sludge tank. The primary odor problem was coming from the sludge tank, which was pumped out and taken off-site about once a week.

The odor emanating from the wastewater process was a source of complaint from neighboring facilities and businesses, as well as from the town's police headquarters five miles away!

RYDALL OE  approach

  • 12 ounces of RYDALL OE  per day, dispensed 1 ounce per hour over a 12 hour work day.
  • Injected via small metering pump into waste stream prior to sludge tank at 100 ppm.

RYDALL OE  results

  • Strong, pungent odor from wastewater process was almost completely eliminated after just two days!
  • Injecting RYDALL OE  prior to reaching the tank allowed it to properly mix, as well as have some retention time.
  • Plant Manager stated, "We've had no phone calls from the police or fire department, and none of our neighbors have complained since using RYDALL OE.  We are very pleased with the result and will continue to use the product to control odor."
  • With such a positive result from the sludge portion of the wastewater process, the plant is now evaluating the use of RYDALL OE  to help control an issue they have with high BOD's in the main waste stream. They have a daily BOD limit of 1000 mg/L that is frequently surpassed. 

Apex Engineering Products Corporation  |  1241 Shoreline Drive  |  Aurora, IL 60504  |  Tel: 800.451-6291 or 1.630.820.8888  |  Fax: 630.820.8886  |  Made in the U.S.A.

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