从生物质和棉花织废物的堆肥中去除气态二氧化碳
Ethan Woods1, Perry Berlin1, Jesse Daystar2
1Department of Biological and Agricultural Engineering, North Carolina State University, 3110 Faucette Dr., Raleigh, NC 27695, USA.
Waste management (New York, N.Y.)
|September 13, 2025
概括
堆肥食品,院子和棉花废物实现了高碳转化效率 (23-60%),消除了大量的CO2. 这种方法有效地降解了棉花废物,为垃圾填埋织品提供了可持续的替代品.
科学领域:
- 环境科学 环境科学
- 废物管理 废物管理
- 生物技术是生物技术.
背景情况:
- 每年有1200万的织废物被填埋.
- 目前的BiCRS技术,如无氧消化和热水液化,在加工效率和原料要求方面存在局限性.
- 堆肥为织废物管理和碳捕获提供了一个潜在的解决方案.
研究的目的:
- 分析堆肥各种废物流的碳转化效率,包括食品,院子和棉花废物.
- 为了比较空气化和氧气化堆肥反应堆的效率.
- 评估堆肥对二氧化碳捕获和从垃圾填埋场转移织废物的潜力.
主要方法:
- 使用空气通风和氧气通风的堆肥反应堆.
- 分析了碳转化效率和棉花质量降解百分比.
- 在反应堆输出中测量了二氧化碳度.
- 在堆肥过程中评估微生物多样性的变化.
主要成果:
- 实现碳转化效率在23%至60%之间.
- 已证明棉花质量降解率在37%至99%之间.
- 计算的二氧化碳去除潜力为每干燥生物质废物0.32 - 0.97.
- 氧气透气反应堆产生超过80%的二氧化碳度,大大减少了捕获工作.
- 含棉花原料的碳转化效率提高了1.2%.
结论:
- 堆肥是一种有效的BiCRS技术,用于管理织废物并实现大量的碳转化.
- 空气化和氧气化堆肥提供了显著的二氧化碳捕获潜力,在某些方面优于其他BiCRS方法.
- 堆肥将大量废物从垃圾填埋场转移,为循环经济做出贡献,并减少温室气体排放.
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