Theia works with NE Landfill Reaching High Levels of H2S
Theia was contacted by a consultant in New England on behalf of a client. The client, a large landfill in New England, was seeing its inlet H2S levels creep up towards 1000 ppmv. In order to use the gas, the level of H2S needed to be below 200 ppmv. Additionally, the landfill was quickly reaching its permit level for Sulfur Dioxide. The average flow rate of the gas is 1800 cfm
Theia was happy to come to the rescue, delivering a treatment system within 2 weeks of the request from the customer. Theia offers the most efficient treatment systems for removing Hydrogen Sulfide from landfill and digester gas. For fast turnaround, we offer Dry Media systems which utilize our H2S Rex or BG series of media, which offer the highest H2S capacity of any media in the industry. Not only does the media have the longest life expectancy of any media, the required contact time in only a few seconds. Additionally, the media can be removed when spent, in roughly the same amount of time it took to put the media into the vessel. Lastly, the media offers a low pressure drop which remains low through the life of the media.
Theia is able to offer a wide range of compact and efficient equipment designs based on the use of this media and the advantages it offers. For this project, we delivered a unique dual bed vessel that was able to treat all the gas and provide two beds in the same piece of equipment. This design allowed for the shipment of one piece of equipment, minimized set up time as well as piping. These adsorbers can be delivered via a landall truck and dropped right onto a gravel base. No foundation work or concrete was necessary. The unit is 30 feet long x 8 feet wide and 8.5 feet tall and provides two(2) independent media beds, each holding 10,000 pounds of Theia’s BG series media. The adsorber has six(6) top hatches for ease of access and allowing the customer to load the media higher inside the bed.
The system was put into service in October 2013 and has been in operation ever since. The customer has only changed out one of the media beds since beginning operations.
