葡萄酒厂废弃物和废弃活性污泥的无氧共消化与微藻过程的结合:半连续系统的优化
P Scarponi1, V Caminiti2, M Bravi3
1Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari of Venice, via Torino 155, 30172 Venice, Italy.
Waste management (New York, N.Y.)
|December 12, 2023
概括
这项研究探讨了使用无氧消化和微藻来处理葡萄酒厂废物. 该过程有效地回收了能量,并产生了有价值的微藻生物质用于生物燃料,同时也从废水中去除了氨.
科学领域:
- 环境生物技术 环境生物技术
- 废物管理 废物管理
- 循环经济是一个循环经济.
背景情况:
- 葡萄酒在意大利农业工业部门中代表着一个重要的,昂贵的废物流.
- 葡萄酒的应用有限,阻碍其融入循环经济.
- 为了资源回收,需要同时处理葡萄酒渣和废弃活性污泥.
研究的目的:
- 研究一种合无氧消化和微藻处理葡萄酒渣和污泥的过程.
- 为了生产能源和有价值的微藻生物质,用于生物燃料或生物刺激剂回收.
- 评估微藻在消化剂上的植物修复能力.
主要方法:
- 在半连续系统中,在无氧消化后的液体消化物上种植Chlorella vulgaris.
- 优化液压保留时间 (HRT),以实现最佳的生长和污染物去除.
- 微藻生物质组成 (干重,脂质,蛋白质) 和脂质谱的分析.
主要成果:
- 20天的HRT产生了稳定的微藻生长 (1.85g L-1),具有高脂质 (33.48%) 和蛋白质 (57.85%) 含量,适合生物柴油.
- 观察到大量的氨去除 (95.72%),但有机可溶性物质的减少是有限的.
- 10天的优化HRT改善了消化物植物修复,达到84.58%的氨,33.01%的sCOD和38.06%的多去除.
结论:
- 无氧消化与微藻过程的结合是利用葡萄酒厂废物的可行策略.
- 菌种植有效地回收资源和修复消化物,生产生物燃料的生物质.
- 流程优化对于在循环经济框架下最大限度地减少污染物和提高生物质产量至关重要.
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