四种热友细菌用于初级污泥水解的性能:污泥分解和化酶活动
Yonghao Liu1, Shangzong Li1, Dongxu Xing1
1College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China.
Bioresource technology
|January 29, 2025
概括
热友细菌 (TB) 的预处理通过促进有机物释放和污泥分解,有效地加速污泥水解. 菌株X4展示了最高的水解效率,为工业应用提供了有前途的战略.
科学领域:
- 环境微生物学 环境微生物学
- 生物技术是生物技术.
- 废水处理 废水处理
背景情况:
- 污泥水解对于废水处理效率至关重要.
- 热性细菌 (TB) 提供了一种环保的方法来增强污泥水解.
- 优化结核病菌株是最大化水解性能的关键.
研究的目的:
- 为了比较四种热友细菌菌株的水解性能:Bacillus sp. AT07-1 (X1),Parageobacillus toebii X2 (X2),Geobacillus kaustophilus X3 (X3),以及Parageobacillus toebii R-35642 (X4) 等. 这两种类型的虫有着相应的性质.
- 评估结核病预处理对污泥结构和有机物释放的影响.
- 为了确定最有效的TB菌株来加速初级污泥水解.
主要方法:
- 使用四种精选的热友细菌菌株对污泥进行预处理.
- 对有机物释放的分析,包括细胞外聚合物质和可溶性物质.
- 使用光响应测量氨酸类和可溶性微生物副产品.
- 对酶活性,特别是α-葡萄糖酶和蛋白酶的测定.
主要成果:
- 这四种结核病菌株都促进了污泥的分解,增加了可溶性有机物质.
- 菌株X4显著增强了有机物释放,氨酸类和可溶性微生物副产品达到64.8%的光反应.
- 菌株X4表现出α-葡萄糖酶 (1.4) 和蛋白酶 (2.0) 的相对活性最高.
结论:
- 热友细菌预处理对污泥水解有效,促进有机物释放和污泥分解.
- 帕拉吉奥巴西勒斯toebii R-35642 (X4) 是加速初级污泥水解的最有效的菌株.
- 结核病预处理为污泥管理带来经济效益和工业应用潜力.
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