三种类型的城市固体废物的温度和颗粒大小对生物化学甲潜力的影响
Emanuele Diogenes Guerra1, Elizabeth Amaral Pastich2, Mario Takayuki Kato3
1Universidade Federal de Pernambuco, Caruaru, Brazil.
概括
较高的温度显著提高了城市有机固体废物 (MOSW) 消化中的甲产量. 颗粒大小的影响最小,这表明生物气生产过程中的成本节约.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 废物管理 废物管理
背景情况:
- 无氧消化是处理城市有机固体废物 (MOSW) 的关键过程.
- 优化消化器条件,如温度和颗粒大小,对于最大限度地提高沼气产量至关重要.
- 了解这些参数对于有效的废物转化能源战略至关重要.
研究的目的:
- 为了研究温度和颗粒大小对MOSW无氧消化的影响.
- 评估这些因素之间的相互作用及其对甲生产的影响.
- 确定从不同的废物流中增强生物气产生的最佳条件.
主要方法:
- 生物化学甲潜力 (BMP) 测试使用与食品废弃物 (FW),纸张废弃物 (PW) 和院子废弃物 (YW) 养的反应器进行.
- 实验在三个温度下进行:35°C,45°C和55°C.
- 对于每种废物类型,测试了不同的颗粒大小:FW为0.6-2毫米,PW和YW为2-22毫米.
主要成果:
- 温度上升显著提高了所有废物类型 (FW,PW,YW) 的甲产量.
- 颗粒大小的变化对甲产量或有机物稳定率没有显著影响.
- 在所有测试的MOSW分数中,在55°C时观察到最高的甲产量.
结论:
- 温度是优化MOSW无氧消化的一个关键因素,较高的温度产生更多的甲.
- 降低颗粒体大小对于高效的生物气生产并非必不可少,这可能会降低运营成本.
- 促进MOSW无氧消化提供了显著的社会环境效益,包括减少污染和开发可再生能源.
关键词:
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 4 4 1能源的能量是能量的能量.食品废弃物 食品废弃物 食品废弃物有机物稳定 有机物稳定纸张废弃物废弃物的纸张废弃物.院子废弃物 院子废弃物相关概念视频
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