通过铁碳微电解来增强食品废弃物中的甲生产,这是一个两阶段的过程
Tugui Yuan1, Xiaoyu Shi2, Qiyong Xu2
1Shenzhen Engineering Laboratory for Eco-efficient Recycled Materials, School of Environment and Energy, Peking University Shenzhen Graduate School, Nanshan District, Shenzhen 518055, China; Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
Bioresource technology
|July 10, 2023
概括
将铁碳微电解集成到无氧消化中,大大提高了食品废弃物中的甲产量. 这种增强主要源于改进的水解,导致生物气产量大幅增加.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 在食品废弃物处理中,使用漏床反应器 (LBR) 和上游无氧污泥毯式反应器 (UASB) 的双阶段无氧消化是常见的.
- 现有的方法由于低效的水解和甲基生成而面临局限性.
研究的目的:
- 为了提高食品废物的两阶段无氧消化的效率.
- 研究将铁碳微电解 (ICME) 纳入UASB并将废水循环到LBR的影响.
主要方法:
- 采用了结合LBR和UASB的两级无氧消化系统.
- 铁碳微电解 (ICME) 被整合到UASB中.
- 从UASB的废水被重新循环到LBR.
主要成果:
- 综合ICME-UASB系统显著增加了甲 (CH4) 产量,增长了168.29%.
- 在LBR中改善的食物废物水解是主要的驱动因素,约94.5%的增强CH4产量.
- ICME促进了水解酸性细菌的活性,并丰富了性甲原体,刺激了相关的代谢途径.
结论:
- 将ICME纳入两级无氧消化系统有效地提高了食品废物处理效率.
- 增强的水解和刺激的甲生成途径是导致甲产量显著增加的关键.
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