Case Studies

For more than 20 years, GES Biotek has been manufacturing open-cell substrates from 100% naturally occurring materials. These case studies are just a few of the many treatment plants that have benefitted from our proprietary bio-oxidation media.


Biofilter media bed in Temecula, CA

Biofilter Media Upgrade, Temecula, CA

Enhanced Cell-Max™, Crater-Max®

A media upgrade prevented large amounts of hydrogen sulfide from exiting the plant’s two biofilters

Smoke seeping through Fiber-Max media during smoke test at Richmond, CA biofilter

Air Distribution System Smoke Test, Richmond, CA

Fiber-Max™, Crater-Max®

Smoke testing at a newly constructed WWTP determined whether the air distribution system achieved an even airflow pattern.

test skid showing media being tested

Orange County Pilot Test, Huntington Beach, CA

Enhanced Cell-Max™

Enhanced Cell-Max™ media outperformed other technologies with >99% removal of both H2S and MM.

Biofilter remediation and media replacement, Chico, CA

Biofilter Media Replacement, Chico, CA

Fiber-Max™, Crater-Max®

GES Biotek restored two overgrown biofilters to full functionality by replacing dilapidated components and adding fresh media.

Hono'uli'uli Biofilters filled with Enhanced Cell-Max media

Hono’uli’uli WWTP, Honolulu, HI

Enhanced Cell-Max™

Three biofilters required outfitting with a complete odor control system, including all media, equipment and accessories.

Enhanced Cell-Max installed at Eastern Municipal Water District, San Jacinto, CA

Eastern Municipal Water District, San Jacinto, CA

Enhanced Cell-Max™, Crater-Max®

GES Biotek installed a dual-media ecosystem to properly distribute the foul air and remove all complex odors and VOCs.

Enhanced Cell-Max installed at Woodlands Pump Station, Cary, NC

Woodlands Pump Station, Cary, NC

Enhanced Cell-Max™

GES Biotek manufactures engineered nutrient-rich open-cell substrate from recycled glass material that would otherwise end up in a landfill.

Bio-Scrubber towers

Bio-Scrubber® Tower System, Stockton, CA

Cell-Max™

Decontamination and remediation was required to restore this two-tower system with new Cell-Max™ media, screen, and support system.

sprinkler bed

Monte Verdi WWTP, Clovis, CA

Fiber-Max™, Crater-Max®

GES Biotek supplied and installed filtration media and components for the plant’s new concrete biofilter.

Bio-Filter irrigation

Bio-Scrubber® Tower System, Livermore, CA

Crater-Max®

GES Biotek was called in to determine the cause of recent drops in system efficiency and suggest corrective action.

Crater-Max installed at Headworks Bar Screen Project, Hayward, CA

Headworks Bar Screens Project, Hayward, CA

Crater-Max®

Biofilter beds were refitted with porous Crater-Max® media, which served as the ecosystem for the microorganism growth.