to mid-November 2010 (129 days). During this period the digester temperature was over 20 °C with an average daily biogas …

produce biogas. However, the choice of membrane type was crucial. Synthesized hydrophobic PA membrane was not effective for … this purpose, producing 50–121 mL biogas/day, while developed HPA membrane and the reference PVDF were able to transfer the … nutrients and metabolites while retaining the cells, producing 1102–1633 and 1016–1960 mL biogas/day, respectively. …

To optimize commercial-scale biogas production, it is important to evaluate the performance of each microbial step in … and by-products. By measuring biogas production and methane concentrations on-line in a semi-continuously fed reactor, gas … monitoring parameters such as biogas yield and volatile fatty acid concentration. Hence, formation rate constants can reveal …

) of 1.8 day, with specific biogas productivity (SBP) of 5.3 L·L⁻¹·day⁻¹ and COD degradation grade of …> with 8.2 L·L⁻¹·day⁻¹, where COD degradation grade was 90.4%. The biogas collected from the reactor at … in the reactor resulted in an increase of methane content of the produced biogas. However, the low pH value …

With the increasing demand for renewable energy and sustainable waste treatment, biogas production is expanding … large amounts of stillage residues. This stillage is energy-rich and can be used for biogas production, but is a challenging … substrate due to its high levels of nitrogen and sulphate. At the full-scale biogas production plant in Norrköping, Sweden …