回收的聚胺调节微生物动力学并增强厨房垃圾花园垃圾共堆肥系统中的生物转化
Xiaowen Sun1, Zhe Li2, Zhi Li2
1National Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; School of Life Sciences, Jianghan University, Wuhan, 430056, China.
Journal of environmental management
|January 1, 2025
概括
多 (CPPs) 通过调节pH和来增强厨房和花园废物的共同堆肥. 这种新型添加剂减少了有害气体排放,并增加了含量,以改善植物生长.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 废物管理 废物管理
背景情况:
- 厨房和花园废物 (KW-GW) 的共同堆肥对于城市固体废物回收至关重要.
- 在KW-GW共同堆肥中提高生物转化效率需要新的添加剂.
- 来自废物蛋白质的多 (CPPs) 提供了作为堆肥增强剂的潜力.
研究的目的:
- 调查多 (CPPs) 作为KW-GW联合堆肥中的新增剂的有效性.
- 评估CPP对堆肥过程参数,排放和堆肥质量的影响.
- 分析CPP在堆肥过程中对微生物群落结构和功能的影响.
主要方法:
- 将CPP添加到KW-GW共堆肥系统中.
- 对包括温度,pH值和气体排放 (CH4,N2O,NH3,H2S) 在内的堆肥参数的监测.
- 对湿性物质含量,发芽指数和微生物多样性的分析 (16S rRNA测序).
主要成果:
- CPPs显著增加了堆肥矩阵的pH值,并延长了热友性阶段.
- 碳化合物减少了CH4 (52.5%),N2O (37.9%),NH3 (17.5%) 和H2S (41.3%) 的排放.
- 用CPPs修改的堆肥显示,湿性物质增加了32.6%,发芽指数为108.5%,促进了瑞草的生长.
- CPPs改变了微生物群落,有利于热友和基纤维素降解细菌和真菌,同时抑制了酸性/甲性物种.
结论:
- 在KW-GW共堆肥中,回收的CPP作为有效的pH调节剂和源.
- CPPs改善了堆肥微环境,增强了生物质转化和减少温室气体排放.
- 使用CPP代表了资源丰富的废弃物生物质再利用和可持续堆肥的可行战略.
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