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Type of publication: Straipsnis recenzuojamoje Lietuvos tarptautinės konferencijos medžiagoje / Article in peer-reviewed Lithuanian international conference proceedings (P1e)
Field of Science: Energetika ir termoinžinerija / Energetics and thermal engineering (T006)
Author(s): Navickas, Kęstutis;Venslauskas, Kęstutis;Župerka, Vidmantas
Title: Skirtingų regionų nuotekų dumblo perdirbimo į biodujas energinis įvertinimas
Other Title: Energy assessment of the wastewater sludge conversion to biogas on different regions
Is part of: Šilumos energetika ir technologijos - 2012 : konferencijos pranešimų medžiaga, 2012, vasario 2, 3 d. / Kauno technologijos universitetas, Lietuvos energetikos institutas, Lietuvos šiluminės technikos inžinierių asociacija, Branduolinės energetikos asociacija. Kaunas : Technologija, 2012
Extent: p. 35-39
Date: 2012
Abstract: Biogas plants are implemented in newly build wastewater treatment facilities. A large part of investments in wastewater treatment consists of investments in biogas plant. The purpose of this study was to perform energy assessment of sewage sludge digestion to biogas from four different regions of Lithuania. Results show that the biggest biomass energy value is from sewage sludge from the city of Siauiiai - 1,08 to 1,18 MJ/kg. However, this sewage sludge digestion was problematic due to the low carbon and nitrogen ratio (C:N) 5,3:1 and high concentration of dry matter. High energy value was from cities of Kaunas and Alytus. Energy value of dry organic matter of Kaunas city sewage sludge ranged from 16,4 to 16,9 MJ/kg, and the city of Alytus was - 17,1 to 17,3 MJ/kg. Due to low dry matter concentration of sewage sludge it should be mixed with a waste containing higher concentration of dry matter
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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