零价值铁在有氧堆肥过程中加速生物降解塑料碎片 (BPF) 的老化:来自堆肥特性和微生物群落的见解
Yidan Liu1, Junxia Huang2, Lisha Wang3
1Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China; Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
Journal of environmental management
|October 17, 2025
概括
零价值铁 (ZVI) 加快了堆肥中可生物降解的塑料碎片的老化. ZVI增强了微生物活动,促进了塑料的降解,并提供了减轻塑料污染的见解.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 微生物学 微生物学
背景情况:
- 堆肥是一种可持续的废物处理方法.
- 可生物降解的塑料碎片 (BPF) 进入废物流,在堆肥过程中经历老化.
- 零价值铁 (ZVI) 用于改善堆肥,但其对BPF老化的影响尚不清楚.
研究的目的:
- 研究ZVI条件下的有氧堆肥中BPF的衰老机制.
- 确定ZVI对BPF降解和微生物群落的影响.
主要方法:
- 通过添加ZVI进行了有氧堆肥实验.
- 分析了BPF的衰老特征 (颜色,质量,生物膜形成).
- 检查了微生物社区的结构和功能.
主要成果:
- ZVI显著增强了BPF的衰老,显示出增加的颜色变化 (16.0136.33%) 和质量降解 (8.6257.45%).
- 在ZVI调节的堆肥中,BPF上的生物膜形成增加了7.41174.10%.
- ZVI减轻了微生物的约束,并促进了可能参与塑料降解的细菌种群.
结论:
- 在堆肥系统中,ZVI加速了BPF的衰老和降解.
- ZVI影响微生物群落,增强塑料降解能力.
- 作为减轻堆肥过程中的塑料污染的战略,ZVI显示出有前途.
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