| Title: | Removing siloxanes and hydrogen sulfide from landfill gases with biochar and activated carbon filters |
| Author(s): | Selenius M; Ruokolainen J; Riikonen J; Rantanen J; Nakki S; Lehto VP; Hyttinen M; |
| Address: | "Department of Technical Physics, University of Eastern Finland, 70210 Kuopio, Finland. Electronic address: mikko.selenius@uef.fi. Department of Environmental and Biological Sciences, University of Eastern Finland, 70210 Kuopio, Finland. Department of Technical Physics, University of Eastern Finland, 70210 Kuopio, Finland" |
| DOI: | 10.1016/j.wasman.2023.05.006 |
| ISSN/ISBN: | 1879-2456 (Electronic) 0956-053X (Linking) |
| Abstract: | "Landfill gas (LFG) is formed by microorganisms within a landfill; it can be utilized as a renewable fuel in power plants. Impurities such as hydrogen sulfide and siloxanes can cause significant damage to gas engines and turbines. The aim of this study was to determine the filtration efficiencies of biochar products made of birch and willow to remove hydrogen sulfides, siloxanes, and volatile organic compounds from the gas streams compared to activated carbon. Experiments were conducted on a laboratory scale with model compounds and in a real LFG power plant where microturbines are used to generate power and heat. The biochar filters removed heavier siloxanes effectively in all of the tests. However, the filtration efficiency for volatile siloxane and hydrogen sulfide declined quickly. Biochars are promising filter materials but require further research to improve their performance" |
| Keywords: | *Hydrogen Sulfide Gases Charcoal Siloxanes Biofuels Waste Disposal Facilities Activated carbon Biochar Landfill gas; |
| Notes: | "MedlineSelenius, Mikko Ruokolainen, Joonas Riikonen, Joakim Rantanen, Jimi Nakki, Simo Lehto, Vesa-Pekka Hyttinen, Marko eng 2023/05/26 Waste Manag. 2023 Jul 15; 167:31-38. doi: 10.1016/j.wasman.2023.05.006. Epub 2023 May 23" |
