Merichem Technologies announced that its LO-CAT庐 Technology for H2S removal was a key factor in Ohio landfill desulfurization projects that recently received Engineering News Record鈥檚 (ENR鈥檚) Midwest Project of the Year Award in the water/environment category. Merichem designed and fabricated four trains of proprietary LO-CAT庐 H2S removal technology that are helping capture and sequester nearly 100% of the hydrogen sulfide gas naturally emitted at WIN Waste Innovations鈥� two landfills in Ohio. WIN Waste鈥檚 investment in the LO-CAT庐 technology, the construction by ET Design Build, and additional plant design by GHD, has resulted in the largest application of desulfurization technology for landfill gas in the United States.聽
The desulfurization trains were designed to remove up to 4.5 long tons per day (LTPD) of elemental sulfur 鈥� up to 18 LTPD in total removal. Merichem Technologies鈥� liquid redox process removes more than 99% of the inlet H2S and virtually eliminates sulfur dioxide (SO2) emissions from the landfill gas. The application makes both WIN Waste landfills among the most environmentally friendly in the nation.
In addition to ENR鈥檚 Midwest Project of the Year Award, the project also won the ENR Midwest Cites Best Project in Safety award. Starting in 2026, WIN Waste will begin converting the captured H2S into renewable natural gas, a project that is expected to produce more than 2.7 million MMBtus of RNG annually, to start, and eventually will result in the avoidance of more than 120,000 tons of fossil-based carbon dioxide (CO2) emissions yearly.