从固体金枪鱼废弃物中优化甲生产:进行热预处理和共同消化
Noela Bermúdez-Penabad1, Andrea Rodríguez-Montes2, Madalena Alves3
1Chemical Engineering Laboratory, Faculty of Sciences and Interdisciplinary Center for Chemistry and Biology (CICA), University of A Coruña, Rúa da Fraga, 10, 15008 A Coruña, Spain; Institute for Biotechnology and Bioengineering (IBB), Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
Waste management (New York, N.Y.)
|February 10, 2024
概括
鱼类废物可以通过无氧消化转化为沼气. 与脂肪废物一起消化金枪鱼废物显著增加了甲生产,为制废物管理提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 废物管理 废物管理
背景情况:
- 鱼类装会产生大量的固体废物,给环境带来挑战.
- 无氧消化提供了一种可持续的方法来处理鱼类加工废物.
- 从鱼类废物中优化生物气体生产需要谨慎的预处理和共同消化策略.
研究的目的:
- 研究从热处理预处理和共同消化的固体金枪鱼废弃物中生产生物气.
- 评估热预处理对生和煮熟的金枪鱼内脏的影响.
- 评估与不同废物流共同消化的有效性,以提高甲产量.
主要方法:
- 原料和煮熟的金枪鱼内脏的热预处理.
- 预处理的金枪鱼废物的无氧消化.
- 与脂肪废物,乳制品废物和污水污泥进行联合消化实验.
- 对甲产量和挥发性/长链脂肪酸积累的分析.
主要成果:
- 热预处理将原始金枪鱼内脏的甲产量增加了50% (0.27g COD-CH4/g COD).
- 对于热处理过的熟的金枪鱼内脏,没有观察到显著的生物气增加.
- 煮熟的金枪鱼内脏与脂肪废物的同时消化产生了最高的甲产量 (0.87g COD-CH4/g COD).
- 挥发性和长链脂肪酸的积累发生在未经热处理的原始内脏中.
结论:
- 热预处理对原始金枪鱼内脏有益,但不能煮熟.
- 鱼废弃物与脂肪废弃物的同时消化对生物气体生产非常有效.
- 最佳的碳比对于鱼类废物的无氧消化成功至关重要.
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