新型试点规模的先进液化-无氧消化 (ALAD) 工艺,用于将食物废物转化为生物气
Haihong Jiang1, Zhonghao He2, Tianzhuo Hou1
1School of Environmental Science and Engineering, Environmental Microbiomics Research Center, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-Sen University, Guangzhou 510006, China.
Bioresource technology
|February 10, 2026
概括
先进的液化-无氧消化 (ALAD) 工艺通过增强有机物液化和生物气生产,显著改善了食品废物消化. 这种可扩展的战略提供了可持续的资源回收和温室气体减排.
科学领域:
- 环境生物技术 环境生物技术
- 废物管理 废物管理
- 生物化学工程 生物化学工程
背景情况:
- 传统的两阶段无氧消化食品废弃物面临着长时间的保留时间和缓慢的消化速度的挑战.
- 有效地将食物废弃物转化为生物气需要克服水解和酸性生成阶段的局限性.
研究的目的:
- 开发和验证一种先进的液化-无氧消化 (ALAD) 工艺,以改善食品废物处理.
- 评估ALAD在有机物溶解和生物气产生中的效率.
- 通过生命周期评估评估ALAD的环境效益.
主要方法:
- 一种新的ALAD工艺,将微生物联盟辅助液化与上游无氧污泥毯式反应器相结合.
- 使用一种细胞和核细胞混合的微观世界,富含Saccharomycetales和Clostridium用于水解和发酵.
- 量化有机物去除,生物气产量和微生物社区动态.
主要成果:
- 在6天内,ALAD工艺实现了52.3%的固体有机物质液化.
- 随后的甲基生成表明94.0%的化学氧需求 (COD) 在高有机载荷率 (11公斤COD/m3d) 和短水力保留时间 (1天) 的情况下被去除.
- 包括Methanobacterium和Methanosaeta在内的甲原体古生物是关键参与者,将75.9%的有机碳转化为沼气.
结论:
- ALAD 流程提供了一个可扩展和高效的战略,用于可持续的食品废弃物利用.
- 与传统方法相比,ALAD在温室气体减排和资源保护方面具有显著的优势.
- 这种方法有助于有效地从食物浪费中回收资源,促进循环经济.
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