优化空气空间,以调节细菌的继承,以及在厨房废物堆肥过程中减轻气体排放的功能
Lanxia Zhang1, Xingzu Gao1, Yanming Li1
1Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
Bioresource technology
|August 16, 2023
概括
在厨房垃圾堆肥中优化空气空间 (FAS) 可以减少甲和氨的排放. 在55%的FAS促进有益的细菌提高堆肥成熟度和减少温室气体.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 废物管理 废物管理
背景情况:
- 厨房垃圾堆肥产生气体排放,影响环境质量.
- 自由空气空间 (FAS) 影响微生物群落和堆肥过程.
- 控制气体排放对于可持续的废物管理至关重要.
研究的目的:
- 研究不同空气空间 (FAS) 对厨房垃圾堆肥过程中的细菌动力学和气体排放的影响.
- 为了确定最佳的FAS减轻甲,氨和硫化排放.
- 评估FAS对堆肥成熟度和微生物群落结构的影响.
主要方法:
- 用三个FAS级别进行了堆肥实验:45%,55%和65%.
- 监测了细菌动态,气体排放 (甲,氨,硫化,氧化) 和温度.
- 用发芽指数来评估堆肥成熟度.
主要成果:
- 通过将FAS从45%提高到65%,通过改变细菌发酵和热友活动,甲排放减少了51%和氨排放减少了32%.
- 在更高的FAS水平下降的温度促进了减少硫酸盐的细菌,增加了硫化排放.
- 55%的FAS导致了最高的发芽指数,有利于化和非化细菌,并改善了酸盐的可用性.
结论:
- 自由空气空间在厨房垃圾堆肥过程中显著影响细菌群落和气体排放.
- 55%的FAS代表了减少有害排放和提高堆肥成熟度的最佳条件.
- 了解FAS影响是制定可持续堆肥和排放控制的有效策略的关键.
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