The amount of generated waste in Lithuania ranges from 35,000 tons to 261,865 tons per year. 35% of this quantity is biodegradable waste – i.e. about 27,830 tons/year. 75% of municipal waste in Lithuania is disposed in landfills. Such management of municipal waste is dangerous because of environmental pollution with the biogas and leachate, increased global greenhouse effect, and so on. From 1 ton of landfill waste it is possible to get about 10 m3 of landfill gas, after using it 13 kWh and 50 kWh of thermal energy could be made. There was presented in this article the estimated amount of biogas produced by Lithuanian regional landfills each separately and all co-production of biogas from landfills potential Lithuania, using the software LandGEM. Total volume of gas liberated in landfills ranges from 7.8 × 106 to 5.8 × 107 m3/year of methane and carbon dioxide in an amount ranging from 3.9 × 106 to 2.9 × 107 m3/year. Minimum quantities of biogas generated in Tauragės regional landfill – 7.8 × 106 m3/year, and the highest – Kaunas regional landfill – 5.8 × 107 m3/year. From the generated biogass it would be possible to yield 2,145 × 108 kWh of electricity and 8.25 × 108 kWh of thermal energy.

Article in: Lithuanian

Article published: 2015-09-29