一种连续生物气压测量装置的开发,可用于批量无氧消化试验
Andrea Pérez-Vidal1, Leonardo Antonio Bermeo Varón2, Lina Mariana Rodríguez-Jiménez1,3
1Faculty of Engineering, School of Natural Resources and Environmental Engineering, Universidad del Valle, 13th Street, 100-00, Cali 760032, Colombia.
ACS omega
|September 2, 2025
概括
这项研究引入了一种物联网设备,用于无氧消化测试中的精确生物气体测量,克服手动计量方法的不准确性. 新系统提高了生物化学甲潜力 (BMP) 和特定甲活性 (SMA) 测定的可靠性和数据管理.
科学领域:
- 环境科学
- 生物技术
- 化学工程
背景情况:
- 用于批量无氧消化测试的手动测量方法 (MM),如生化甲潜力 (BMP) 和特定甲活性 (SMA),容易出现不准确性.
- 在MM测量过程中,生物气损失导致低估了生物气产量和不可靠的测试结果.
研究的目的:
- 开发和评估基于物联网 (IoT) 的生物气压测量装置,以提高批量无氧消化试验的准确性和可靠性.
- 将物联网设备的性能与传统的MM方法进行比较.
主要方法:
- 一个使用Arduino微控制器的物联网设备被开发出来,可以同时监测四个反应堆中的生物气压.
- 该装置在250毫升玻璃容器中进行了测试,其中使用葡萄糖和食物废物作为基板.
- 在相同的条件下,对物联网设备和MM方法进行了30小时的直接比较.
主要成果:
- 在MM方法中,每次测量平均损失为50.7±12.9 mbar,导致低估了生物气产量.
- 在MM方法中,生物气损耗随着反应器压力增加而增加.
- 该物联网设备提供了准确的实时数据, 能够观察早期的生物气生产动态, 并检测潜在的问题, 如甲基生成抑制.
结论:
- 基于物联网的监控显著提高了BMP和SMA测试的准确性和可靠性.
- 开发的物联网设备有助于高效的数据管理,早期故障检测和无氧消化过程的实时监控.
- 实施这种技术为评估无氧消化性能和了解微生物活动提供了更强大的方法.
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