生物炭对微生态值的调节促进了老化碳化合物的降解
Guoliang Wang1, Ruixiang Li1, Xiaolin Zhang2
1MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
Journal of hazardous materials
|November 23, 2025
概括
优化生物炭应用率对老化石油碳化合物 (A-PHC) 污染是关键. 微生态值为~1%的生物炭可增强微生物活动和A-PHC降解,而较高剂量会损害土壤网络.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 微生物学 微生物学
背景情况:
- 老化石油碳化合物 (A-PHC) 的污染给环境带来了挑战.
- 修复受到污染物回收和土壤微生物网络破坏的限制.
- 生物炭修正案有潜力,但需要平衡污染物吸附和微生物生物刺激.
研究的目的:
- 建立一个微生态值框架,以优化A-PHC污染土壤中的生物炭应用.
- 研究不同生物炭速率对微生物群落和A-PHC降解的影响.
- 了解驱动增强生物降解与非生物吸附的机制.
主要方法:
- 研究的生物炭应用率从0%到5.5%.
- 分析了微生物社区的多样性,网络架构和组装过程.
- 使用光谱方法来区分生物降解和吸附.
主要成果:
- 确定了约1%的临界生物炭值.
- 通过微生物激活,最佳的生物炭率 (约1%) 提高了A-PHC降解的50.86%-83.60%.
- 较高的生物炭率导致微生物社区的崩和停滞的退化.
结论:
- 微生态值框架对于A-PHC的精确生物修复至关重要.
- 优化生物炭应用可重建功能性土壤微生物网络,以有效降解.
- 这种方法将重点从减少污染物转移到恢复生态系统网络.
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