关于子功能化生物炭的见解,用于稳定高负荷无氧消化和增加生物气生产
Yulei Zhang1, Lixin Zhao1, Jing Feng1
1Key Laboratory of Agricultural Green and Low-carbon for North China Plain, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Journal of environmental management
|February 7, 2026
概括
基改性生物炭稳定了玉米的高负荷无氧消化 (AD). 这种添加剂显著提高了沼气生产和甲含量,同时防止了由挥发性脂肪酸积累引起的工艺故障.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 在玉米的无氧消化 (AD) 中,高有机负载往往导致挥发性脂肪酸 (VFA) 积累和过程失败.
- 这种不稳定性与低效的合成相互作用和物种间电子转移有关.
研究的目的:
- 调查子修饰生物炭 (QMBC) 在稳定玉米的高负荷AD中的有效性.
- 评估QMBC对VFA度,沼气生产,甲含量和微生物群落结构的影响.
主要方法:
- 合成子修饰生物炭 (QMBC) 通过在生物炭上接种二硫酸.
- 运行一个半连续反应器,用于高负载的玉米 (2.36 g VS/L·d) 的高负载AD. 有或没有QMBC.
- 分析VFA度,生物气生产,甲含量和微生物群落组成.
主要成果:
- 添加QMBC减轻了酸抑制,并将总VFA度降低了77.38%.
- 生物气产量增加了177.87%,甲度保持在60%以上.
- QMBC丰富的电活性细菌 (Lentimicrobium,Flexilinea) 与甲素丰富性正相关,增强了辅酶F420合成途径.
结论:
- 子功能化生物炭是一种实用的添加剂,用于提高高负荷无氧消化过程的稳定性和生物气产量.
- QMBC改善了微生物相互作用和电子转移,这对于有效的有机物质降解至关重要.
相关概念视频
01:18Increasing Function
400
An increasing function exhibits a rise in output values as input values increase. This behavior is depicted graphically as a curve or line that slopes upward from left to right. Such a function satisfies the condition that if x1 < x2, then f(x1) < f(x2), indicating that the function values grow with increasing inputs. This concept is fundamental in understanding growth trends across various domains, such as population dynamics, financial investments, or resource consumption.The...
400
01:16Drug Product Stability
274
The long-term stability of drug products is critical to ensuring their quality, safety, and effectiveness over time. Stability directly influences a product's ability to maintain its intended characteristics, ensuring it performs as expected during its intended shelf life. Key attributes such as drug potency, impurities, dissolution, and other physicochemical measures of performance are tested to assess stability. These parameters indicate how well the product retains its quality over time and...
274
01:20Digestive Functions of the Large Intestine
2.3K
The large intestine is where the final stages of digestion happen. When the cecum receives chyme, it contains undigested carbohydrates that undergo fermentation. Gut bacteria ferment these carbohydrates to produce short-chain fatty acids that provide some energy and help synthesize essential vitamins.
As the chyme moves to the colon, it triggers two characteristic sluggish contractions - haustral churning and mass peristalsis. Haustral churning involves the rhythmic contraction and relaxation...
As the chyme moves to the colon, it triggers two characteristic sluggish contractions - haustral churning and mass peristalsis. Haustral churning involves the rhythmic contraction and relaxation...
2.3K
01:17Oxidation of Phenols to Quinones
4.8K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
4.8K
01:06Lipid Digestion
99.6K
Lipids are large molecules that are generally not water-soluble. Since most of the digestive enzymes in the human body are water-based, there are specific steps the body must take to break down lipids and make them available for use.
99.6K
00:57Carbohydrate Digestion
122.6K
Carbohydrate digestion and metabolism break down simple and complex carbohydrates from food into saccharides (i.e., sugars) for the body to use as energy. Carbohydrate digestion starts in the mouth during mastication, or chewing. The masticated carbohydrates remain intact in the stomach. Digestion resumes in the duodenum of the small intestine, where pancreatic alpha-amylase and brush border enzymes of the microvilli convert complex carbohydrates to monosaccharides. Finally, the monosaccharides...
122.6K