Biogas Potential Assessment of the Composite Mixture from Duckweed Biomass

Alexander Chusov, Vladimir Maslikov, Vladimir Badenko, Viacheslav Zhazhkov, Dmitry Molodtsov and Yuliya Pavlushkina
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Alexander Chusov: Institute of Civil Engineering, Higher School of Hydraulic and Power Engineering Construction, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
Vladimir Maslikov: Institute of Civil Engineering, Higher School of Hydraulic and Power Engineering Construction, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
Vladimir Badenko: Institute of Civil Engineering, Higher School of Hydraulic and Power Engineering Construction, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
Viacheslav Zhazhkov: Institute of Civil Engineering, Higher School of Hydraulic and Power Engineering Construction, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
Dmitry Molodtsov: Institute of Civil Engineering, Higher School of Hydraulic and Power Engineering Construction, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
Yuliya Pavlushkina: Institute of Civil Engineering, Higher School of Hydraulic and Power Engineering Construction, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia

Sustainability, 2021, vol. 14, issue 1, 1-9

Abstract: The article presents the research results of anaerobic digestion processes in bioreactors of composite mixtures based on initial and residual biomass of Lemna minor duckweed and additives: inoculum (manure), food waste, and spent sorbents to determine biogas potential (biogas volume, methane content). Duckweed Lemna minor, which is widespread in freshwater reservoirs, is one of the promising aquatic vegetation species for energy use. Residual biomass is obtained by chemically extracting valuable components from the primary product. The purpose of the research was to evaluate the possibility of the energy potential of residual biomass of Lemna minor to reduce the consumption of fossil fuels and reduce greenhouse gas emissions. This is in line with the International Energy Agency (IEA) scenarios for the reduction of environmental impact. The obtained results confirm the feasibility of using this type of waste for biogas/biomethane production. The recommendations on the optimal composition of the mixture based on the residual biomass of Lemna minor, which will allow for an increase in biogas production, are given. The obtained data can be used in the design of bioreactors.

Keywords: biogas potential; methane content; composite mixture; bioreactors; common duckweed; residual biomass; organic waste; circular economy (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2021:i:1:p:351-:d:713766

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