在动态堆肥和堆肥过程中对多环芳 (PAH) 的整治:通过PAH预算的机制性见解
Jinnashri Devi1, Himadri Mandal1, Subhasish Das2
1Soil and Agro Bio-Engineering Lab, Department of Environmental Science, Tezpur University, Tezpur, Assam, 784028, India.
Environmental science and pollution research international
|September 14, 2023
概括
虫增强了多环芳 (PAH) 清除在化堆肥过程中比堆肥更有效. 这个过程涉及微生物的丰富和固定,这对于PAH排毒至关重要.
科学领域:
- 环境科学 环境科学
- 土壤生物学 土壤生物学
- 生物修复是一种生物修复.
背景情况:
- 我们对虫在化过程中去除多环芳 (PAHs) 的机制的理解有限.
- 缺乏关于Eudrilus eugeniae的PAH积累能力的数据.
研究的目的:
- 调查堆肥和混凝土堆肥系统中的PAH分配动态.
- 将堆肥和混凝土堆肥之间的PAH去除效率与不同物种的PAH去除效率进行比较.
- 阐明土和微生物群落在PAH修复中的作用.
主要方法:
- 利用新的预算方程来追踪13种多环芳化合物 (PAH).
- 使用Eisenia fetida和Eudrilus eugeniae进行有氧堆肥与动态堆肥的比较.
- 分析了微生物生长 (细菌,真菌,actinomycetes) 和PAH水平在PAH尖的虫床中.
主要成果:
- 虫堆肥显示出明显更高的PAH去除 (2-3倍) 比堆肥.
- 4-6环的PAHs比3环PAHs减少了更多 (30-50%).
- 尤德里卢斯·尤金尼亚 (Eudrilus eugeniae) 的PAH积累与Eisenia fetida相似;地促进了PAH的固定.
- 微生物繁殖的增加 (细菌,真菌,菌体) 与PAH去除相关.
结论:
- 虫诱导的微生物丰富是PAH排毒的重要机制.
- 虫驱动的矿化-化平衡和微生物增强对于PAH补救至关重要.
- 与传统堆肥相比,菌堆肥提供了更高的PAH去除效率.
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