工业堆肥的甲减排潜力:用于垃圾填埋场甲氧化生物系统 (MOBs) 的实验室选
Minxuan Wang1, Cole J C Van De Ven1
1Carleton University, Department of Civil & Environmental Engineering, 1125 Colonel By Drive, Ottawa, ON, K1S 5B6, Canada.
Journal of environmental management
|February 14, 2026
概括
堆肥过剩,一种废物,可以有效地减少甲氧化生物系统 (MOB) 中的垃圾填埋场甲排放. 与传统的堆肥相比,这些材料对可持续的废物回收利用和改进的天然气运输充满了希望.
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:
- 甲氧化生物系统 (MOBs) 为减少垃圾填埋场的甲 (CH4) 排放提供了一个可持续的解决方案.
- 已成品的堆肥是MOB的传统基质,但工业堆肥产生废物,称为堆肥过剩.
- 提升堆肥剩余的价值可以为MOBs提供成本效益和可持续的替代基板.
研究的目的:
- 评估堆肥过剩作为甲氧化生物系统 (MOBs) 的潜在基质.
- 为了比较堆肥过剩与传统成品堆肥在减少垃圾填埋场甲排放方面的表现.
- 研究影响不同基质中甲氧化效率的物理化学性质.
主要方法:
- 结构化选方法涉及物理化学表征.
- 批量测试以评估甲性潜力 (MOP),呼吸和运动参数.
- 在不同的甲加载率下进行长期柱子注射实验.
主要成果:
- 完成的堆肥显示出更高的内在甲变性潜力.
- 堆肥表面表现出优越的结构性质 (更粗的质地,更高的空气填充多孔性),有利于气体运输.
- 在高甲负载下,堆肥过量保持了80%的效率,而成品堆肥降至44%.
结论:
- 堆肥过量在MOB中表现出强的性能,特别是在高甲负载率下,这是由于气体转运特性有利.
- 有效的MOB设计需要将微生物动力学与基质结构和气体运输特征相结合.
- 堆肥过剩是减少垃圾填埋场甲排放的有希望的,具有成本效益的材料,促进废物流的价值化.
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