温度对基于堆肥的垃圾填埋场生物转换器性能的影响
Oday T Al-Heetimi1, Cole J C Van De Ven1, Paul J Van Geel1
1Carleton University, Dept. of Civil & Environmental Engineering, Ottawa, ON, K1S 5B6, Canada.
Journal of environmental management
|August 23, 2023
概括
堆肥生物覆盖器有效地减少了垃圾填埋场甲 (CH4) 排放,即使温度波动. 食品和院子垃圾堆肥表现出弹性,甲氧化在寒冷时期后迅速恢复.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 微生物学 微生物学
背景情况:
- 垃圾填埋场的甲 (CH4) 排放是温室气体的重要来源.
- 基于堆肥的生物转换器是减轻这些排放的有希望的技术.
- 不同温度对生物覆盖的有效性的影响需要进一步研究.
研究的目的:
- 在不同的温度条件下评估食品和院子废物堆肥生物的甲去除性能.
- 通过使用反应式运输模型,量化了解温度对甲氧化效率的影响.
- 评估堆肥生物转化器对周期性温度变化的弹性.
主要方法:
- 实验室柱体实验使用食品和院子废物堆肥进行.
- 在受控温度条件 (22°C和8°C) 下测量了甲氧化.
- 使用反应式运输模型来模拟实验数据并分析温度效应.
主要成果:
- 在较低的温度下 (8°C与22°C相比) 的甲氧化率显著下降.
- 一些甲氧化在8°C下持续存在,由二氧化碳的产生和温度的增加证明.
- 甲氧化能力受到最大氧化率,生物覆盖孔隙性和气体和度的影响.
- 食品和院子废弃物堆肥的Q10值分别为4.19和5.18.
- 在温度从8°C上升到22°C后,生物覆盖性能迅速恢复.
结论:
- 基于堆肥的垃圾填埋生物转化器,包括食品和院子废物堆肥,可以有效减轻甲排放.
- 这些生物覆盖器表现出对周期性温度变化的弹性,使它们适合寒冷的气候.
- 温度显著影响甲氧化率,但堆肥生物转换器在各种条件下保持功能.
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