Challenge

Midas® OCM (Odor Control Media) was developed using a special manufacturing process which enabled the media to have increased ability to adsorb H2S when compared with other odor control medias in the current marketplace.  Increased adsorption offers the benefits of longer run lengths, fewer bed replacements and minimal downtime. 

This unique and patented process converts H2S directly to elemental sulfur rather than sulfuric acid, which is the typical reaction of H2S on carbon.  Since the sulfur molecule is smaller than the sulfuric molecule, the carbon is able to adsorb a greater number of sulfur molecules.  By comparison, Midas OCM will last between 3 to 8 times linger than conventional medias used for this purpose.

To verify the performance of Midas, Siemens prepared a test site to monitor the loading of H2S and other odors on the carbon under actual field conditions.

Results

Testing was performed at a pump station in Florida which had been using a chemical wet scrubber system to remove H2S and odor.  Four (4) treatment vessels containing Midas were placed on-line and the wet scrubber system bypassed.  The testing was conducted from February through June 2005.

During the test period, the system experienced H2S concentrations of between 35 to 148 ppm, with an average of 74 ppm.  The Midas system effectively and consistently removed the H2S to non-detectable levels and also removed all organic odors.

An independent test was conducted by St. Croix Sensory, Inc. whose odor analysis certified a reduction in the range of 55 to 60 odor units versus an inlet concentration in excess of 4,000 units.

Learn more  about Midas OCM