Déportes I, Benoit-Guyod J L, Zmirou D, Bouvier M C
GEDEXE, Meylan, France.
J Appl Microbiol. 1998 Aug;85(2):238-46. doi: 10.1046/j.1365-2672.1998.00484.x.
The disinfection capacity of a municipal solid waste (MSW) composting plant (Siloda) has been evaluated. In spring and summer, MSW was followed during the composting process from raw material to mature compost and long-term storage (1 year). Ascaris eggs, Salmonella, Shigella, total streptococci, faecal streptococci, total coliforms, faecal coliforms and Escherichia coli were studied. Disinfection was successful in terms of a decrease in faecal contamination indicators and disappearance of faecal pathogens. Faecal coliform concentration in raw waste reached 2.1 x 10(8) cfu g-1 dry weight in spring (CI 95%:5.2 x 10(7)-3.4 x 10(8)) and 7.2 x 10(8) cfu g-1 dry weight (1 x 10(8)-1.7 x 10(9)) in summer, and fell to less than 100 cfu g-1 dry weight within 20 d. Faecal streptococci concentrations reached 8.7 x 10(8) cfu g-1 dry weight (3.7 x 10(8)-1.3 x 10(9)) in spring and 2.0 x 10(9)cfu g-1 dry weight (5.6 x 10(8)-3.4 x 10(9)) in summer, and fell to 8.7 x 10(4) cfu g-1 dry weight (6.9 x 10(4)-1.0 x 10(5)). No seasonal pattern of contamination, mainly of animal origin, was observed. Microbiological quality of finished compost depends on the storage conditions. Therefore, the storage stage should be viewed as part of the composting process. Monitoring disinfection capacity of MSW composting needs to combine several microbial populations.
对一座城市固体废物（MSW）堆肥厂（西洛达）的消毒能力进行了评估。在春季和夏季，对城市固体废物在堆肥过程中从原材料到成熟堆肥以及长期储存（1年）的情况进行了跟踪。研究了蛔虫卵、沙门氏菌、志贺氏菌、总链球菌、粪链球菌、总大肠菌群、粪大肠菌群和大肠杆菌。就粪便污染指标的下降和粪便病原体的消失而言，消毒是成功的。春季原生垃圾中粪大肠菌群浓度达到2.1×10⁸ cfu g⁻¹干重（95%置信区间：5.2×10⁷ - 3.4×10⁸），夏季达到7.2×10⁸ cfu g⁻¹干重（1×10⁸ - 1.7×10⁹），并在20天内降至低于100 cfu g⁻¹干重。粪链球菌浓度在春季达到8.7×10⁸ cfu g⁻¹干重（3.7×10⁸ - 1.3×10⁹），夏季达到2.0×10⁹ cfu g⁻¹干重（5.6×10⁸ - 3.4×10⁹），并降至8.7×10⁴ cfu g⁻¹干重（6.9×10⁴ - 1.0×10⁵）。未观察到主要源于动物的污染的季节性模式。成品堆肥的微生物质量取决于储存条件。因此，储存阶段应被视为堆肥过程的一部分。监测城市固体废物堆肥的消毒能力需要综合考虑多个微生物种群。
