二对废弃活性污泥无氧发酵产生的短链脂肪酸产生影响:性能,生物降解和机制
Fengyuan You1, Mengge Tang1, Jiamin Zhang1
1Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), College of Environmental Science and Engineering, Ministry of Education, Changsha 410082, PR China.
Water research
|December 19, 2023
概括
化 (BZC) 通过促进水解和改变微生物群落,在废物活性污泥无氧发酵过程中增强短链脂肪酸 (SCFA) 的产生. 这种消毒剂在优化污泥处理过程方面表现有前途.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 甲 (BZC) 是一种常见的消毒剂,对其对废物活性污泥 (WAS) 无氧发酵 (AF) 影响的研究有限.
- 了解BZC对WAS AF的影响对于优化废水处理和资源回收至关重要.
研究的目的:
- 调查BZC对WAS无氧发酵的剂量特定影响.
- 评估BZC对SCFA产生的影响,AF期间的WAS特征和微生物社区结构.
主要方法:
- 使用不同度的BZC进行了剂量依赖的实验.
- 分析包括SCFA产量,WAS溶解,蛋白质变性 (光谱分析) 和微生物社区概况.
主要成果:
- BZC与SCFA生产呈现剂量特定关系,最佳产量在0.030g/g TSS.
- BZC 化了蛋白质,刺激了细胞外聚合物质,降低了表面张力和增强了溶解度.
- BZC促进了水解,但抑制了乙生成和甲生成,丰富了水解和酸性细菌,如Firmicutes.
结论:
- BZC的应用可以显著增强WAS AF中的SCFA积累.
- BZC的机制涉及蛋白质变性,改善了WAS溶解,以及微生物社区调制.
- 这些发现为优化使用BZC等消毒剂的AF过程提供了洞察力.
相关概念视频
Electrophilic Aromatic Substitution: Chlorination and Bromination of Benzene
8.2K
Chlorination and bromination are important classes of electrophilic aromatic substitutions, where benzene reacts with chlorine or bromine in the presence of a Lewis acid catalyst to give halogenated substitution products. A Lewis acid such as aluminium chloride or ferric chloride catalyzes the chlorination, and ferric bromide catalyzes the bromination reactions. During the bromination of alkenes, bromine polarizes and becomes electrophilic. However, in the bromination of benzene, the bromine...
8.2K
Electrophilic Aromatic Substitution: Sulfonation of Benzene
6.1K
Sulfonation of benzene is a reaction wherein benzene is treated with fuming sulfuric acid at room temperature to produce benzenesulfonic acid. Fuming sulfuric acid is a mixture of sulfur trioxide and concentrated sulfuric acid.
6.1K
Bacterial Flora of the Large Intestine
461
The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
461
Bioremediation
18.5K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.5K


