从使用磁铁的便和城市有机固体废物中高效地生产生物甲:将废物转化为能源
Tuğçe Bay1,2, Buğse Büşra Vural1,2, Öznur Begüm Gökçek3,4
1Department of Environmental Engineering, Faculty of Engineering, Niğde Ömer Halisdemir University, 51100, Niğde, Türkiye.
Biodegradation
|February 6, 2026
概括
将磁铁 (Fe3O4) 添加到肥和城市有机固体废物中,可以在无氧消化过程中增加生物气和生物甲的产量. 在特定的基质-注射剂比率和磁石度下观察到最佳结果,这表明废物转化为能源的有希望的战略.
科学领域:
- 环境科学与工程环境科学与工程
- 生物技术是生物技术.
- 废物管理 废物管理
背景情况:
- 无氧消化是将有机废物转化为沼气和生物甲的关键过程.
- 肥 (CM) 和城市有机固体废物 (MOSW) 是大量的废物流,具有能量回收的潜力.
- 优化无氧消化效率对于可持续的能源生产和废物管理至关重要.
研究的目的:
- 研究磁铁 (Fe3O4) 添加对CM和MOSW联合消化产生的沼气和生物甲产量的影响.
- 为了确定最佳的基质与注射液 (S/I) 比例和磁石度,以增强无氧消化.
- 评估磁铁对有机物去除和微生物社区结构的影响.
主要方法:
- 批量无氧消化实验是在介质性条件下进行的.
- CM和MOSW的同时消化在各种S/I比率 (0,1,2,4g VS-S/g VS-I) 进行.
- 添加了不同度的磁石 (50-600毫克L-1),以评估其对生物气和生物甲生产的影响.
主要成果:
- 最高的生物气和生物甲产量 (分别为2910.5±199.4毫升CH4/gVS和1718.03±117.73毫升CH4/gVS) 在1gVS-S/gVS-I的S/I比率下实现,CM:MOSW比率为2:1.
- 在200 mgL-1.1的磁石度下观察到最佳的生物气和生物甲产量.
- 总固体 (TS) 和挥发性固体 (VS) 清除效率最高的S/I比率为1 gVS-S/gVS-I和100 mgL−1磁铁.
结论:
- 在CM和MOSW的无氧消化过程中,添加磁石显著增强了生物气和生物甲的生产.
- 该研究确定了最佳的S/I比率和磁铁度,以最大限度地提高能量回收.
- 添加磁石并没有改变占主导地位的微生物物种,这表明在无氧消化过程中具有支持性而不是转变性的作用.
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