Mi Huan, Shen Chang, Ding Tingting, Zheng Xincheng, Tang Jiahuan, Lin Hao, Zhou Shungui
Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, College of Ecology and Resources Engineering, Wuyi University, Wuyi shan, 354300, China; Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Bioresour Technol. 2023 Nov;388:129763. doi: 10.1016/j.biortech.2023.129763. Epub 2023 Sep 11.
Low composting temperature and long maturation periods are two major problems during food waste composting. In this study, a novel array-based electric field-assisted aerobic composting (Pin-EAC) process was tested on food waste compost. Pin-EAC increase the composting temperature to 69.3 °C, and improved the germination index by 15%. The Pin-EAC took at least 40% less time to reach the standard compost maturity. The fluorescent spectroscopy results showed that Pin-EAC could increase humic acid and fulvic acid by 33% and 37%, respectively. Pin-EAC could increase the diversity of thermophilic bacteria during composting. The co-occurrence network shown that Pin-EAC are more closely related to oxygen and temperature. This work has initially shown that the use of an electric field could improve food waste composting quality, suggesting that the Pin-EAC process is an effective strategy for high-water and high-oil organic solid waste aerobic composting.
堆肥温度低和熟化期长是食物垃圾堆肥过程中的两个主要问题。在本研究中，一种新型的基于阵列的电场辅助好氧堆肥（Pin-EAC）工艺在食物垃圾堆肥中进行了测试。Pin-EAC将堆肥温度提高到69.3°C，并使发芽指数提高了15%。Pin-EAC达到标准堆肥成熟度所需的时间至少减少40%。荧光光谱结果表明，Pin-EAC可使腐殖酸和富里酸分别增加33%和37%。Pin-EAC可增加堆肥过程中嗜热细菌的多样性。共现网络表明，Pin-EAC与氧气和温度的关系更为密切。这项工作初步表明，电场的使用可以提高食物垃圾堆肥质量，这表明Pin-EAC工艺是高水分和高油有机固体废物好氧堆肥的有效策略。
