在不同的温度和通风模式下,在生物废物堆肥过程中产生一氧化碳
Karolina Sobieraj1, Sylwia Stegenta-Dąbrowska1, Christian Zafiu2
1Department of Applied Bioeconomy, Wrocław University of Environmental and Life Sciences, 37a Chełmońskiego Str., 51-630 Wrocław, Poland.
Materials (Basel, Switzerland)
|July 14, 2023
概括
一氧化碳 (CO) 在生物废物堆肥过程中产生,随着温度和氧气不足而增加. 这表明,由产生CO的微生物形成生物的二氧化碳,为生物化学生产提供了新的途径.
科学领域:
- 生物化学工程 生物化学工程
- 环境微生物学 环境微生物学
- 废物管理 废物管理
背景情况:
- 生物炼油厂的发展往往忽视了将生物化学生产与传统堆肥整合在一起.
- 净一氧化碳 (CO) 生产是生物废物堆肥过程中已知的现象.
- 氧气 (O2) 度和温度是影响CO2形成的关键因素.
研究的目的:
- 在受控的实验室条件下,调查生物废物堆肥过程中净二氧化碳的产生.
- 分析不同通风速率和温度对二氧化碳产生的影响.
- 探索在堆肥过程中对二氧化碳生产的潜在改进.
主要方法:
- 堆肥实验是在受控的实验室条件下进行的.
- 温度在美和热范围 (35°C至65°C) 中有所变化.
- 系统地调整了通风速率 (2.7至7.8 L·h-1).
主要成果:
- 在缺氧条件下观察到最高的CO度 (2.7 L·h-1).
- 碳化合物水平随温度的增加而增加,在65°C时达到大约300ppm.
- 在中性和热性堆肥阶段都注意到了CO的产生.
结论:
- 这项研究突出了拥有CO脱酶 (CODH) 酶的微生物的生物CO形成潜力.
- 研究结果表明,可以优化堆肥以提高二氧化碳的产量.
- 建议进行进一步的研究,以描述微生物群落及其CODH酶活性,以实现高效的二氧化碳转化.
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