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<p>In the present work, a mixture of three biomasses of water hyacinth, macro-algae and poultry manure were utilized for the production of cumulative methane. Prior to cumulative methane production, the physicochemical properties of the biomasses were investigated. Water hyacinth, macro-algae and poultry manure fixed carbon content of 15.51 ± 0.37, 18.94 ± 0.31and 10.9 ± 0.27% and the total solid content percentage (%TS) of 90.99 ± 0.5, 90.02 ± 0.63, and 95.09 ± 0.7%, respectively were experimentally investigated. Both fixed carbon content and total solid content percentage results demonstrated that it is within the required range of biomasses for Anaerobic digestion (AD) processes. Similarly, the percent content of cellulose (24.3 ± 0.05%, 24.96 ± 0.31%, and 16.98 ± 0.19%), hemicellulose (33.52 ± 0.10%, 20.54 ± 0.18% and 17.39 ± 0.13%), lignin (4.96 ± 0.23%, 2.81 ± 0.07%, and 5.02 ± 0.29% ), and crude protein (19.5 ± 0.53%, 36.38 ± 0.54%, and 20.25 ± 0.35%) of water hyacinth, macro-algae and poultry manure, respectively were investigated. In the biomass co-digestion processes, the individual and interaction effects of AD process parameters such as the carbon-nitrogen ratio (C:N), pH, and particle size distribution were investigated using response surface methodology and statistically optimized. At optimal conditions of C:N ratio of 25.2 (g/g), pH of 7.2, and an average particle size of 1 mm, the average yield of cumulative methane observed was 5.15 ± 0.23 L. From the present experimental results, it was exhibited that the combined use of water hyacinth, macro-algae, and poultry manure for the production of cumulative methane using AD processes is a promising alternative. </p>

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Cumulative methane production and methane composition enhancement in the biogas via parametric optimization

  • 期刊论文

  • 发表日期：

    2025年5月20日

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  • Y. L. Alehign,
  • Z. W. Negie,
  • S. M. Hailegiorgis,
  • E. Alemayehu

摘要

In the present work, a mixture of three biomasses of water hyacinth, macro-algae and poultry manure were utilized for the production of cumulative methane. Prior to cumulative methane production, the physicochemical properties of the biomasses were investigated. Water hyacinth, macro-algae and poultry manure fixed carbon content of 15.51 ± 0.37, 18.94 ± 0.31and 10.9 ± 0.27% and the total solid content percentage (%TS) of 90.99 ± 0.5, 90.02 ± 0.63, and 95.09 ± 0.7%, respectively were experimentally investigated. Both fixed carbon content and total solid content percentage results demonstrated that it is within the required range of biomasses for Anaerobic digestion (AD) processes. Similarly, the percent content of cellulose (24.3 ± 0.05%, 24.96 ± 0.31%, and 16.98 ± 0.19%), hemicellulose (33.52 ± 0.10%, 20.54 ± 0.18% and 17.39 ± 0.13%), lignin (4.96 ± 0.23%, 2.81 ± 0.07%, and 5.02 ± 0.29% ), and crude protein (19.5 ± 0.53%, 36.38 ± 0.54%, and 20.25 ± 0.35%) of water hyacinth, macro-algae and poultry manure, respectively were investigated. In the biomass co-digestion processes, the individual and interaction effects of AD process parameters such as the carbon-nitrogen ratio (C:N), pH, and particle size distribution were investigated using response surface methodology and statistically optimized. At optimal conditions of C:N ratio of 25.2 (g/g), pH of 7.2, and an average particle size of 1 mm, the average yield of cumulative methane observed was 5.15 ± 0.23 L. From the present experimental results, it was exhibited that the combined use of water hyacinth, macro-algae, and poultry manure for the production of cumulative methane using AD processes is a promising alternative.