使用脉冲交替通风试点规模装置进行可持续的分散食品废弃物堆肥:基于LCA和LCC分析的案例研究
Lin Zhu1, Liyuan Liu2, Chunxu Tan2
1Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou, China; College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China.
Bioresource technology
|January 15, 2025
概括
一个新的分散堆肥反应堆,SC-PAVCR,在120天内有效地堆肥食物废物. 与传统方法相比,这种技术显著减少了环境影响和碳排放.
科学领域:
- 环境科学 环境科学
- 废物管理 废物管理
- 生物技术是生物技术.
背景情况:
- 有限高效的分散堆肥反应堆存在.
- 这些反应堆的全面环境影响和碳排放尚未得到充分研究.
研究的目的:
- 开发和评估一个连续脉冲交替通风堆肥反应堆 (SC-PAVCR).
- 与其他堆肥方法相比,评估SC-PAVCR的环境影响和碳排放.
主要方法:
- 开发一个连续脉冲交替通风堆肥试点装置 (SC-PAVCR).
- 120天的运行期来监测堆肥性能.
- 生命周期评估 (LCA) 将SC-PAVCR与风和机器堆肥进行比较.
- 对有机物降解,湿酸含量和碳排放强度的分析.
主要成果:
- 在整个120天的运行过程中,SC-PAVCR保持了热友性阶段.
- 实现了44.05%的有机物降解,并增加了酸含量,达到91.21g·kg-1.1.
- 降低了49%的综合环境影响 (相对于风) 和25% (相对于机器堆肥).
- 碳排放强度为44.3公斤二氧化碳等值/,低于windrow的26%,低于机器堆肥的48%.
- 经济成本降至1.91-3.98/FU.美元.
结论:
- SC-PAVCR是一种高效的分散堆肥技术.
- 该设备可显著减少环境影响和碳排放.
- 为开发低碳食品废弃物堆肥解决方案提供技术指导.
相关概念视频
01:28Biodeterioration
Biodeterioration refers to the unwanted alteration of materials caused by microorganisms—especially fungi—which damage both organic substrates (paper, wood, textiles) and inorganic ones (stone, plaster, glass). Unlike abiotic decay, biodeterioration results from biological activity that produces physical disruption and chemical degradation.Physical deterioration occurs as fungal hyphae penetrate pores, cracks, and surface irregularities. Hyphal turgor pressure, thigmotropic growth along...
01:29Bioreactor Design and Operational System
Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
01:25Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...