Related Experiment Video
Updated: Jun 10, 2026

Biogas Purification through the use of a Microalgae-Bacterial System in Semi-Industrial High Rate Algal Ponds
Published on: March 22, 2024
Empirical modelling and dual-performance optimisation of a hydrogen sulphide removal process for biogas treatment
Gabriela Soreanu1, Patricia Falletta, Michel Béland
1Environment Canada, Aquatic Ecosystems Management Research Division, 867 Lakeshore Road, Burlington, Ontario, Canada L7R 4A6.
Abstract:
This study was conducted in order to investigate the use of a simple, low-cost technology for the removal of hydrogen sulphide (H(2)S) from biogas, consisting of an anoxic biotrickling filter. Modelling and optimisation of the process was achieved by studying two independent variables (H(2)S concentration and biogas flowrate) and two simultaneous performance criteria (H(2)S removal efficiency (%) and H(2)S loading rate (g/(m(3) bed day)), which were inversely related. The experiments were carried out on a bioreactor with a 12 L packing volume. H(2)S concentration and biogas flowrate were varied in the range of 2000-4000 ppm(v) and 10-70 L/h, respectively. A model sensitivity analysis indicated the influence of the process variables on the bioreactor performance. Process optimisation was undertaken on a H(2)S removal efficiency basis, while maintaining a target H(2)S loading rate, depending on the desired quality for the biogas use and the technological requirements.
Related Concept Videos
Microbial Wastewater Treatment
Microbial Bioremediation of Hydrocarbons
Biological Treatment of Effluent and Waste Water
Bioremediation

