人类便受精是否会增加沙土中的病原体污染?
Jan-Ole Boness1, Timo Kautz1, Bärbel Kroschewski1
1Albrecht Daniel Thaer-Institut für Agrar- und Gartenbauwissenschaften/Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany.
Waste management (New York, N.Y.)
|December 31, 2025
概括
质量保证的人体便堆肥在沙土中不存在病原体污染的风险. 研究发现,在堆肥应用后,便指标生物如大肠杆菌,沙门氏菌,菌菌或C. perfringens的数量没有增加.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 微生物学 微生物学
背景情况:
- 人类便的回收利用通过回收营养和封存碳来支持循环经济.
- 人类便堆肥在土地上应用,有可能使土壤和作物受到病原体污染的风险.
- 卫生化人类便堆肥经过双重热友治疗以确保质量.
研究的目的:
- 为了评估在应用卫生的人体便堆肥后,土壤中病原体污染的风险.
- 在土壤中监测便指标生物 (大肠杆菌,沙门氏菌,菌,C. perfringens).
- 评估沙地土壤对于人类便衍生的肥料的适用性.
主要方法:
- 在粘土沙和沙土上进行了一次盆栽实验和三次农场试验.
- 应用卫生的人体便堆肥到实验场地.
- 在58至1123天内监测大肠杆菌,沙门氏菌,菌和C. perfringens的度.
主要成果:
- 大肠杆菌,沙门氏菌种类和肠球菌种类. 在所有土壤样本中始终未被检测到.
- 在低度 (<10到10^3 CFU g^-1 FM) 检测到C. perfringens.
- 在堆肥应用后,没有观察到C. perfringens土壤度的系统增加.
结论:
- 沙地土壤似乎适合应用质量保证的人类便衍生的肥料.
- 研究的卫生化人类便堆肥没有导致土壤中关键便指标生物体的可检测增加.
- 这项研究表明,在沙土环境中使用经过处理的人体便时,病原体污染的风险很低.
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