Case Study

Headworks Bar Screens Project, Hayward, CA

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

Project in Brief

  • Project Name: Headworks Bar Screens Project
  • Location: Hayward, CA
  • Installation Date: May 2020
  • Source of Odors: Scrubber Beds
  • System Type: Biofilter
  • Media Type: Crater-Max®
  • H2S Removal Efficiency: >99%

The Situation

Two separate biofilter cells (25'-0" wide x 50'-0" long x 6'-0" deep) at the new Headworks Bar Screens Project required the installation of odor control media.

The Solution

Both Biofilter beds were installed with GES Biotek Crater-Max® media to a depth of 6 feet. Within a Biofilter, Crater-Max® media serves as part of the ecosystem for the growth of acidithiobacillus thiooxidans microorganisms. The porous Crater-Max® media also contains the necessary iron content that in a low pH environment will create a chemistry of iron ions to support a colony of acidithiobacillus ferroxidans microorganisms. The media surface openings are not through-and-through, therefore eliminating any increase in static pressure over time due to fouling of the pore structure. New irrigation spray nozzles were installed on both beds as well.

A smoke test and full performance test verified that the newly outfitted system was performing to spec. The smoke tests demonstrated uniform airflow distribution throughout the Crater-Max® media bed on both the side-by-side biofilter cells which indicates that the air distribution has even airflow pattern at both of the biofilter cells.

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