Challenge

Biological odor control typically means

• Large, space-consuming systems
• Long acclimation periods
• Messy media replacement

H₂S emissions at a wet well in Collier County, Florida measured up to 80 ppm.  Collier County was in need of the next generation of biological odor control.

Solution

A superior biological odor control system was required to treat wet wells in Collier County, Florida.  ZABOCS captures and eliminates organic and inorganic odors by combining:

• Gas absorption
• Gas adsorption
• Biological oxidation

ZABOCS is different than other systems:

• Compact footprint
• Long media life
• No odors emitted upon start-up
• Treats three times the air volume of similar-sized systems

First Stage – Proprietary Media 

• Inert, inorganic biofilter medium
• Well suited to treat for hydrogen sulfide
• Developed in Europe by Veolia Water Systems

Second Stage - Proprietary Carbon Media

• Carbon-based medium
• Supports biological growth
• Formulated by USFilter’s Westates Products

Results

ZABOCS was Tested in Collier County, Florida

• Test conducted by Camp Dresser & McKee
• Test period: Nov. 2001 - February 2002
• Wet well with 350 CFM, 80 PPM H₂S treated

Exceptional Results - ZABOCS achieved over 95 percent odor removal

Overall, the ZABOCS had the highest level of H₂S removal and odor removal, while also treating the highest inlet concentration of all the systems studied.

Collier County Wastewater has since purchased 31 ZABOCS units for installation in Florida.