Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10128903 | Algal Research | 2018 | 10 Pages |
Abstract
This research was conducted to determine the effectiveness of using biogas generated from the anaerobic digestion of septic tank sludge and its anaerobic centrate on microalgal cultivation. Three types of sparging gas (biogas, air, and nitrogen gas) and two culture media (anaerobic centrate and Bold Basal Medium) were used to generate six different experimental settings. The most microalgal growth of 1074â¯mgâ¯VSS/L was achieved when both biogas and anaerobic centrate were used after 10â¯days of cultivation at 30â¯Â°C. In addition, the anaerobic centrate used had a reduction of 89% in its soluble chemical oxygen demand, a 97.3% reduction in the phosphorus concentration, and a 71.5% reduction in the nitrogen concentration. The results demonstrated tremendous benefits of biogas reuse and anaerobic centrate reclamation via microalgae cultivation.
Related Topics
Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
Dingnan Lu, Xiaoqi (Jackie) Zhang, Xiao Liu, Lin Zhang, Mark Hines,