研究菌体在聚乙烯微塑性压力下潜在的辅助无氧消化活性
Bei Zang1, Hang Zhou1, Yubin Zhao1
1Key Lab of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
Journal of hazardous materials
|September 26, 2024
概括
菌体可以帮助废物活性污泥 (WAS) 无氧消化从聚乙烯 (PVC) 微塑料引起的抑制中恢复. 菌体编码的基因有助于污泥的消化和生长,减轻PVC.
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.
- 污水处理 污水处理 污水处理
背景情况:
- 污水中的聚乙烯 (PVC) 微塑料抑制了废物活性污泥 (WAS) 的无氧消化.
- 菌体拥有辅助代谢基因 (AMG),对宿主生存和生物地化学循环至关重要.
研究的目的:
- 研究菌体对PVC压力下的WAS无氧消化性能的影响.
- 了解菌体AMG在缓解PVC微塑料抑制中的作用.
主要方法:
- 分析由PVC微塑料引起的菌体社区结构变化.
- 量化与水解和酸化相关的菌体编码的AMG的转录.
- 使用生物信息学预测菌体与宿主相互作用.
主要成果:
- 在WAS中,PVC微塑料显著改变了菌体社区.
- 用AMG用于无氧消化和生长的菌体被上调,减轻了PVC的抑制.
- 基/类甘油和葡萄糖转化为酸盐的水解是菌素敏感的过程.
- Pseudomonadota 是水解和酸化相关的菌体的主要宿主,PVC的影响最小.
结论:
- 菌体在微塑性压力下维持WAS无氧消化中发挥着至关重要的作用.
- 菌体AMG是暴露在微塑料中的污泥功能回收的关键.
- 基于菌体的策略为处理受微塑料污染的污泥提供了一种新的方法.
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