Weltec biogas plant receives DLG certification

Weltec Biopower GmbH, from Vechta, Germany, has received the "DLG FokusTest" certification from the German Agricultural Association (DLG). A key objective of the test was to check how effectively the biogas plant degrades organic dry substances and thus total carbon for producing biogas.The calculated biogas yield was compared with the maximum possible biogas yield.The organic dry substance degradation rate amounted to 83.9 per cent, and the specific gas yield to 81.5 per cent. All values remained constant over the entire test period of almost 147 days. Following the optimisation of the stirring unit settings, a decline was observed in the energy consumption. The electricity needs of the biogas production itself consumed 2.6 per cent; the energy consumption for the introduction of solid substances amounted to 3.77 kWh per tonne of solid substance.