重组T4细菌溶酶与二次污泥的可治疗性
Sangmin Kim1, Chayanee Chairattanawat2, Su In Kim2
1Center for Institutional Innovation, Division of Policy Research, National Institute of Green Technology, 14F, 60, Yeouinaru-ro, Yeongdeungpo-gu, Seoul 07328, Republic of Korea.
Bioresource technology
|November 7, 2025
概括
菌体T4溶酶有效地分解二次污泥,促进无氧消化过程中的甲产量. 这种酶性预处理提高了生物气化的速度和挥发性悬浮固体的去除,以有效地产生生物能源.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 生物化学 生化学
背景情况:
- 二级污泥水解是生物能源的无氧消化中的瓶.
- 有效的污泥预处理对于优化生物气生产至关重要.
研究的目的:
- 评估菌体T4溶酶作为二次污泥预处理的有效性.
- 评估酶处理对水解,生物气化速率和甲产量的影响.
主要方法:
- 重组细菌T4溶酶被用于污泥预处理.
- 测量了挥发性悬浮固体 (VSS) 清除和生物气化速率常数.
- 在经过处理和未经处理的污泥中分析了微生物群落组成.
主要成果:
- 酶预处理实现了18.1-57.0%的VSS去除.
- 生物气化速率常数增加了0.3-1.0d-1,无论污泥或酶来源如何.
- 在VSS去除和甲产量之间发现了强烈的正相关性 (p < 0.001).
- 观察到微生物群落的转变,在水解条件下,特定属的数量在增加.
结论:
- 菌体衍生的溶酶是有效的酶性预处理剂,用于增强污泥水解.
- 酶的应用显著加快了无氧消化过程中的甲产量.
- 这种方法有望提高从污泥生产生物能源的整体效率.
相关概念视频
Lytic Cycle of Bacteriophages
77.3K
Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the...
77.3K
Viral Replication: Lytic Cycle
1.2K
Bacteriophages, or phages, are viruses that specifically infect bacteria. Among them, T-even bacteriophages, such as T4, exhibit a well-characterized lytic replication cycle in Escherichia coli (E. coli). This process ensures the rapid proliferation of the virus while ultimately leading to the destruction of the bacterial host.Attachment and DNA InjectionThe infection process begins with the recognition and binding of the T4 phage to the E. coli cell surface. Tail fibers of the phage...
1.2K


