来自不同来源的生物炭对温室气体排放和在污水污泥堆肥过程中减轻微塑料的协同效应
Yanting Zhou1, Haoran Zhao1, Zonghui Lu1
1College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China.
Bioresource technology
|July 30, 2023
概括
来自小麦,粉和猪的生物炭在污水污泥堆肥过程中有效减少温室气体排放和微塑料. 猪的生物炭显示了全球变暖潜力的最显著减少.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 废物管理 废物管理
背景情况:
- 污水污泥堆肥产生温室气体和微塑料.
- 生物炭是一种富含碳的稳定材料,正在探索其减轻这些污染物的潜力.
研究的目的:
- 评估小麦,粉和猪的生物炭在污水污泥堆肥过程中减少温室气体和PM的有效性.
- 为了比较不同类型的生物炭的性能.
主要方法:
- 污水污泥的堆肥使用不同的生物炭修正 (小麦,粉,猪) 和对照组.
- 监测N2O,CH4,NH3排放,全球变暖潜力 (GWP) 和微塑料度.
主要成果:
- 所有生物炭都显著减少了N2O排放 (28.91-41.23%).
- 粉和猪的生物炭降低了NH3排放 (12.53-23.53%).
- 添加生物炭降低了GWP,猪肥生物炭是最有效的.
- 生物炭促进了MP的氧化和降解,显著降低了它们的度.
- 通过添加生物炭,小尺寸的MP (10-100μm) 显著减少.
结论:
- 生物炭修正案是减轻废水污泥堆肥过程中温室气体排放和微塑料污染的可行策略.
- 粉和猪的生物炭在减少NH3和MPs方面表现出卓越的性能.
- 生物炭可能会影响微生物群落,增强污染物降解.
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