通过机械共处理来增强纤维素生物质的无氧消化
Anahita Bharadwaj1, Evert K Holwerda2, John M Regan3
1The Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
Biotechnology for biofuels and bioproducts
|June 3, 2024
概括
在无氧消化过程中通过削进行机械共处理,可增强纤维素生物质分解和甲生产. 这种方法提供了一个可行的替代方案,用于从草原材料产生生物气体的传统预处理.
科学领域:
- 生物技术是生物技术.
- 生物化学工程 生物化学工程
- 可再生能源可再生能源是可再生能源.
背景情况:
- 纤维素生物质需要有效的预处理,以实现高效的无氧消化.
- 传统的预处理方法可能是能源密集型和昂贵的.
- 在发酵过程中机械研磨是一种替代方法.
研究的目的:
- 为了研究在无氧发酵过程中机械共处理 (磨粉) 对纤维素生物质的影响.
- 评估磨时间对糖溶解和甲生产的影响.
- 评估共同治疗作为传统预处理方法的替代方案.
主要方法:
- 收集了由草养的半性无氧消化器的废水.
- 废水经过球磨,持续时间各不相同 (0.5,2,5,10分钟).
- 批量发酵试验用磨砂和未磨砂 (对照) 废水进行了18天.
主要成果:
- 与对照组相比,磨砂增加了5-13%的糖溶解率,更长的持续时间产生了更好的结果.
- 生产的沼气含有44-55.5%的甲.
- 磨削2分钟或更长时间显著增加了总生物气产量.
- 电合处理减少了平均颗粒大小,而较长的磨削时间显示了甲生产回报的减少.
结论:
- 无氧消化过程中的机械共处理是一种有效的策略,可以改善从纤维素草材料的生物气体生产.
- 这种方法为传统预处理方法提供了一个有希望的替代方案.
- 优化磨时间是最大化效益的关键,同时考虑能源投入.
相关概念视频
01:32Tissue Homogenization and Cell Lysis
11.6K
Tissue homogenization involves disintegrating tissue architecture and lysing cells, and is an early step in isolating and analyzing cellular components. The method used for homogenization depends on the sample type, the amount of sample available, the analyte to be obtained, and the sensitivity of the method. These methods are broadly classified as mechanical and non-mechanical methods.
Mechanical methods of tissue homogenization
These methods rely on applying external physical force to disrupt...
Mechanical methods of tissue homogenization
These methods rely on applying external physical force to disrupt...
11.6K
01:25Production of Organic Acids
82
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
82