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在污水污泥和用于土壤肥沃的消化物中的Enterobacteriaceae

Angelina Wójcik-Fatla¹, Ewelina Farian¹, Katarzyna Kowalczyk¹

¹Department of Health Biohazards and Parasitology, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland.

Pathogens (Basel, Switzerland)

|January 8, 2025

概括

作为有机肥料使用的污水泥和消化剂显示微生物污染. 然而,在三周后,这些有机废物的可接受剂量并没有显著增加土壤与Enterobacteriaceae的污染.

科学领域:

农业微生物学农业微生物学
环境科学环境科学
土壤科学土壤科学

背景情况:

污水污泥和消化剂等有机材料越来越多地被用作富含营养的农业肥料.
评估这些有机修改物的微生物安全性对于可持续农业至关重要.

研究的目的:

评估波兰污水污泥和消化剂的微生物污染.
确定使用这些材料作为土壤肥料的安全性.
评估受精对土壤微生物群落的影响,特别是肠杆菌.

主要方法:

对土壤,污水污泥和消化样品进行微生物学分析.
总的美索菲尔和格拉姆阴性细菌 (Enterobacteriaceae家族) 的量化.
检测大肠杆菌和沙门氏菌的检测. 使用培养,生化和分子方法.
实验室实验在受精土壤中对大肠杆菌生存的实验.

主要成果:

肠杆菌菌类的平均度在土壤中为1.1 × 10^4 CFU/g,在污水污泥中为9.4 × 10^5 CFU/g,在消化剂中为5.6 × 10^6 CFU/g.
在所有样本类型中检测到大肠杆菌,其在污水污泥和消化剂中占主导地位.
土壤样本经常显示Serratia,Enterobacter,Pantoea,Citrobacter和Pseudomonas等属.
实验室实验表明,在用有机废物受精三周后,大肠杆菌在土壤中的生存能力受到限制.

结论:

污水污泥和消化物含有大量的微生物负载,包括大肠杆菌.
用可接受剂量的有机废物施肥在三周内不会大幅提高土壤Enterobacteriaceae水平.
需要进一步的研究才能充分了解长期影响和特定的微生物动态.

关键词:

它们是Enterobacteriaceae的细菌.埃舍里希亚大肠杆菌 (Escherichia coli) 是一个大肠杆菌.沙门氏菌是一种沙门氏菌.消化剂可以消化.其他肥料,肥料.污水污泥污水污泥污水污泥土壤土壤土壤土壤土壤

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