Sinóros-Szabó Jr., BotondManiak, Stephan2021-06-282021-06-282005-12-06Acta Agraria Debreceniensis, No. 16 (2005) , 248-2542416-1640https://hdl.handle.net/2437/316794The transformation and utilization of organic materials must occur with the highest degree of environmental conformity. This conformity – in accordance with the guiding principles of the European Union – will result in a new economic and systematical approach. We can establish the profitability of projects with the utilization of surplus effects which characterize multiple-product lines.application/pdfEUsustainable agriculturebiogasenvironmental protectionfolyóiratcikkOpen Accesshttps://doi.org/10.34101/actaagrar/16/3317Acta Agraria Debreceniensis16Acta agrar. Debr.