基质减小和定期补充营养素对木材生物氧化的影响
Anran Li1, Virginia Natonek1, Gijs van Erven2
1Environmental Technology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG, Wageningen, the Netherlands.
Journal of environmental management
|November 3, 2024
概括
细木颗粒大小和定期的营养补充显著提高了木材的生物氧化 (BWO) 以实现可持续的热回收. 这个过程增强了微生物的活动,有效地增加了木材的分解和热量输出.
科学领域:
- 生物技术是生物技术.
- 可再生能源可再生能源是可再生能源.
- 生物质的价值化 生物质的价值化
背景情况:
- 生物木氧化 (BWO) 是一个有前途的堆肥热回收系统,用于纤维素的价值化.
- 优化BWO性能对于最大限度地实现可持续的低温热量产生至关重要.
研究的目的:
- 调查原料颗粒大小和定期营养补充 (PNS) 对BWO效率的影响.
- 在不同的BWO条件下评估微生物活动和木材分解.
主要方法:
- 木被加工成粉 (<5毫米) 和立方体 (5,10,15毫米).
- 批量模式BWO反应堆用于88天的化期,定期补充营养介质.
- 测量了氧气消耗,利用,干物质损失和碳水化合物去除.
主要成果:
- 粉原料在BWO中显著优于木块,氧气消耗量高出207%,干燥物质损失高出217%.
- 定期营养补充 (PNS) 提高了性能,特别是与粉,导致更高的利用率和碳水化合物去除.
- 使用人类尿液作为粉和PNS的营养来源,在60天内导致34.2%的干物质损失和45.5%的碳水化合物去除.
结论:
- 与PNS相结合的木材细磨是一种有效的策略,可以提高BWO的性能和热量产生潜力.
- BWO工艺,特别是通过优化原料和营养物质战略,为从木材生物质中可持续回收热量提供了一条节能途径.
- 尽管有能源成本,但通过研磨减小颗粒大小会使热量产量大幅增加,使该过程在经济上可行.
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