Psychrophilic plug-flow digester with assisted solar heat – small-scale system feasibility
¹Riga Technical University, Institute of Energy Systems and Environment, Āzenes iela 12/1, LV 1048 Riga, Latvia
²Liepaja University, Institute of Science and Innovative Technologies,
Lielā iela 14, LV-3401 Liepaja, Latvia
*Correspondence: kaspars.ivanovs@hotmail.com
Abstract:
Paper discusses using a low-temperature biogas reactor with a solar support system technology as a management tool of biodegradable waste in small scale. A feasibility study looks at primary factors affecting anaerobic digestion process and solar heat production, design examination of a solar heating for anaerobic digester and possible technology application, also defines the multilocality of biogas, illustrates diffusion of innovation for diversification of biogas production. Analysis confirms solar heat increases efficiency and production of biogas, decreases costs and toxicity of digestate. Results show that for implementation of technology in rural areas further research in socio-economic, sourcing of feedstock and customization is needed.
Key words:
anaerobic digester, low temperature, multilocal, plug-flow, solar heat