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通过各种预处理方法从棕油空果束中增强热友甲的产量:一项比较研究
Sittikorn Saelor1,2, Prawit Kongjan3, Poonsuk Prasertsan4
1Department of Biological Science, Faculty of Science and Digital Innovation, Thaksin University, Phatthalung 93210, Thailand.
Heliyon
|November 7, 2024
概括
油棕空果束 (EFB) 的预处理大大提高了甲的产量. 弱性预处理产生了最多的沼气,提供了可持续的废物管理解决方案.
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.
- 环境科学 环境科学
背景情况:
- 棕油空果束 (EFB) 是丰富的纤维素生物质,具有生产生物气体的潜力.
- 未经处理的EFB的无氧消化产生有限的甲,因为它的反抗性结构.
- 有效的预处理对于提高EFB的生物降解性至关重要,以便有效地产生甲.
研究的目的:
- 评估各种预处理方法在提高油棕空果束 (EFB) 的甲产量的有效性.
- 确定最佳的预处理策略,以最大限度地提高生物气生产,提高棕油厂废物管理的可持续性.
主要方法:
- 研究了多种预处理技术:弱性 (Ca(OH) 2),弱酸性 (酸),酸性棕油厂废水 (POME),生物气废水,热水 (180-200°C) 和微波.
- 评估了甲产量 (mL-CH4 / g-VS),并分析了EFB组成 (纤维素,半纤维素,素),结晶度和表面积的变化.
- 评估了最有效的预处理方法的净能量平衡和平衡点.
- 进行微生物社区分析,以了解预处理对无氧消化性能的影响.
主要成果:
- 与未经处理的EFB (189.45毫升-CH4 / g-VS) 相比,所有测试的预处理都提高了甲产量.
- 弱性预处理实现了最高的甲产量 (277.11毫升-CH4 / g-VS),其次是 180°C 的水热 (244.33毫升-CH4 / g-VS) 和生物气废水 (238.32毫升-CH4 / g-VS).
- 预处理导致纤维素增加,半纤维素和素减少,结晶性降低,表面积增加,促进更好的无氧消化.
- 弱性预处理证明了最高的净能平衡 (8.73 kJ/g-VS) 和最短的平衡期 (2 年).
结论:
- 预处理显著提高了棕油空果束 (EFB) 的无氧消化能力,从而提高了甲的产量.
- 弱性和生物气废水预处理是最大限度地提高甲产量的有希望的策略,并促进可持续的棕油废物管理.
- 优化的预处理提高了EFB的生物降解性,并有利于微生物群落,这对于高效的生物气体产生至关重要.
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