在农业废物的生物转化中利用纤维素降解细菌
Kshitipati Padhan1, Ranjan Kumar Patra1, Debadatta Sethi2
1Department of Soil Science, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, 751003, India.
Chemosphere
|November 12, 2023
概括
细菌注射显著增强农业废物堆肥,改善营养含量和稳定性. 这种方法为固体废物管理提供了有效的解决方案,产生了有价值的堆肥.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 人口快速增长和城市化加剧了固体废物管理的挑战.
- 对于农业废物的经济,高效和快速堆肥技术有极大需求.
研究的目的:
- 研究细胞分解细菌 (CBC9,CBD4,CBG2) 在农业废物堆肥中的有效性.
- 评估通过细菌注射产生的堆肥的质量和稳定性.
主要方法:
- 使用三种特定的纤维化细菌菌株对草,玉米和蔬菜废物进行堆肥.
- 分析堆肥质量参数,包括C:N比率,化指数 (NI) 和阴离子交换能力 (CEC).
- 总 (N), (P) 和 (K) 含量的评估.
- 使用里叶变换红外光谱学 (FT-IR),扫描电子显微镜 (SEM) 和能量分散式X射线光谱学 (EDS) 进行堆肥稳定性的表征.
主要成果:
- 细菌注射导致成熟的堆肥,其C:N比率为14-17:1,NI为0.35-0.45,CEC为76-88cmol (P+) kg-1.1.
- 总N,P和K含量分别增加了75-127%,20-175%和42-94%.
- 使用CBG2注射的草 (39%) 和蔬菜废物 (38%) 获得了最高的堆肥回收率.
- FT-IR,SEM和EDS显示通过细菌注射增强了堆肥稳定性,标志着亚利法基减少和芳香基增加.
结论:
- 细胞分解性细菌注射是提高农业废物堆肥质量和稳定的有效方法.
- 这一过程导致必需营养素含量显著增加,并形成湿物质.
- 细菌注射的堆肥代表了可持续废物管理的更稳定和更有价值的最终产品.
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