一个强大的低温闭环无氧系统,用于高固体混合农业废物:加拿大推进农业废物管理解决方案
Vaibhavi Bele1,2,3, Bernard Goyette1, Chunjiang An2
1Sherbrooke Research and Development Center, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, QC, J1M 0C8, Canada.
概括
低温无氧消化 (AD) 有效处理农场废物混合物,肥产生了最多的生物气. 这种方法还减少了消化剂中的重金属,显示了有机残留物管理的潜力.
科学领域:
- 农业科学 农业科学
- 环境工程 环境工程
- 生物技术是生物技术.
背景情况:
- 低温无氧消化 (AD) 对于处理各种有机残留物至关重要.
- 优化基质组合和注射剂适应是有效AD性能的关键.
- 通过挥发性脂肪酸和性比率来评估系统稳定性对于可靠的运行至关重要.
研究的目的:
- 为了评估低温AD对两个不同的农场基质组合的有效性.
- 为了确定生物气生产和甲产量的最佳基质混合物.
- 分析AD对消化剂中重金属度的影响.
主要方法:
- 利用一个闭环的,两阶段的液体-固体无氧消化系统.
- 使用肥 (CM) 和CM+乳制品肥 (DM) 进行注射适应.
- 研究了两组基质:第1组 (CM,DM,玉米料) 和第2组 (CM,DM,猪,玉米料) 在245天和3个循环中增加有机负载.
主要成果:
- 用适应的注射剂单消化CM产生了最高的沼气 (424±4L).
- 第1组在第一阶段表现优异,而两组在第二阶段的甲产量相似 (0.2330.262 L g-1 VSfed).
- 消化物中的重金属度显著下降,表明它们被用作微生物营养素.
结论:
- 低温AD是一种可行的技术,用于管理各种有机农场副产品.
- 有效的注射剂适应和稳定性比率的监测对于系统的成功至关重要.
- 这项研究为优化AD性能和消化质量的营养恢复提供了有价值的见解.
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