References

489

51 Leclerc, M., Delbes, C., Moletta, R. et al. (2001). Single strand conformation

polymorphism monitoring of 16S rDNA archaea during start-up of an anaerobic

digester. FEMS Microbiology Ecology 34: 213–220.

52 Ahring, B.K., Ibrahim, A.A., and Mladenovska, Z. (2001). Effect of temperature

increase from 55 to 65 C on performance and microbial population dynamics of

an anaerobic reactor treating cattle manure. Water Research 35: 2446–2452.

53 Sundberg, C., Al-Soud, W.A., Larsson, M. et al. (2013). 454 pyrosequencing anal-

yses of bacterial and archaeal richness in 21 full-scale biogas digesters. FEMS

Microbiology Ecology 85: 612–626.

54 Qu, X., Vavilin, V.A., Mazeas, L. et al. (2009). Anaerobic biodegradation of cel-

lulosic material: batch experiments and modeling based on isotopic data and

focusing on acetoclastic and non-acetoclastic methanogenesis. Waste Manage-

ment 29: 1828–1837.

55 Baccioli, A., Ferrari, L., Guiller, R. et al. (2019). Feasibility analysis of

bio-methane production in a biogas plant: a case study. Energies 12: 473.

56 Achinas, S. and Euverink, G.J.W. (2020). Rambling facets of manure-based biogas

production in Europe: a briefing. Renewable and Sustainable Energy Reviews 119:

109566.

57 Lyng, K.A. and Brekke, A. (2019). Environmental life cycle assessment of biogas

as a fuel for transport compared with alternative fuels. Energies 12: 532.

58 Önen, S., Nsair, A., and Kuchta, K. (2019). Innovative operational strategies for

biogas plant including temperature and stirring management. Waste Management

and Research 37: 237–246.

59 Achinas, S. and Euverink, G.J.W. (2019). Feasibility study of biogas production

from hardly degradable material in co-inoculated bioreactor. Energies 12: 1040.

60 Achinas, S., Horjus, J., Achinas, V. et al. (2019). A PESTLE analysis of biofuels

energy industry in Europe. Sustainability 11: 5981.

61 Åhman, M. (2010). Biomethane in the transport sector – an appraisal of the

forgotten option. Energy Policy 38: 208–217.

62 EBA (2017). Annual statistical report. European Biogas Association. http://

european-biogas.eu/wp-content/uploads/2017/12/Statistical-report-of-the-

European-Biogas-Association-web.pdf (accessed 17 February 2019).

63 Pols, A.J.K. (2015). The rationality of biofuel certification: a critical examina-

tion of EU biofuel policy. Journal of Agricultural and Environmental Ethics 28:

667–681.

64 Esposito, G., Frunzo, L., Gioerdano, A. et al. (2012). Anaerobic co-digestion

of organic wastes. Reviews in Environmental Science and Biotechnology 11 (4):

325–341.