Related Experiment Video
Updated: Jul 4, 2026

Measuring Biomethane Potential of Food Scrap Waste Anaerobically Co-Digested with Waste-Activated Sludge Using Respirometry
Published on: April 26, 2024
Effect of nickel on biological methane generation from a laboratory poultry waste digester
C M Williams1, J C Shih, J W Spears
1Biotechnology Laboratory, Department of Poultry Science, North Carolina State University, Raleigh, North Carolina 27695.
Abstract:
Nickel added in concentrations as low as 10muM significantly increased biogas production in a laboratory poultry waste digester utilizing excreta from laying hens as the organic energy source. It was shown that the initial rate of biogas production increased as early as 4 h after the addition of nickel to the laboratory cultures. Analysis of the excreta for nickel content prior to addition of exogenous NiCl(2) showed appreciable amounts of nickel present. The data indicate that nickel naturally present in layer excreta is suboptimal or unavailable to the bacteria for biogas production purposes.
More Related Videos
Related Concept Videos
Microbes and Methanogenesis
Metabolism of Chemolithotrophs

