کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8848247 | 1618002 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simulating the effects of mesophilic anaerobic and aerobic digestions, lagoon system, and composting on pathogen inactivation
ترجمه فارسی عنوان
شبیه سازی اثرات هضم بی هوازی و هوازی مازوفیلی، سیستم لاجون و کمپوست شدن بر فعال سازی پاتوژن
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کلمات کلیدی
زباله های حیوانی، هضم بی هوازی سیستم لگو، کمپوست، پاتوژنها،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی
To improve understanding of pathogen inactivation in flushed dairy manure during anaerobic digestion, lagoon systems, and mesophilic composting, we assessed pathogen inactivation in batch-scale anaerobic digesters, aerobic lagoons, and manure piles. Further, we assessed the impact of air injection in lagoon systems on pathogen inactivation. The inactivation of Salmonella and E. coli was studied for more than 70Â days. The change in pH, total solids, total carbon, and total nitrogen during manure treatment was determined. The results showed that the lagoon system with air injection to be more effective in pathogen removal compared to the lagoon system with no air injection, anaerobic digestion, and mesophilic composting. Both types of lagoon systems (with and without air injection) were found to be more effective in eliminating pathogens than anaerobic digester systems. Mesophilic manure pile extended the survival of both Salmonella and E. coli. In the anaerobic system, E. coli was detected beyond 60Â days of incubation, while in the aerobic system; it was eliminated in 30-35Â days. In anaerobic system, Salmonella reached to non-detectable level in 30-35Â days, while in aerobic system it took 4-12Â days. In the mesophilic manure pile, however, E. coli survival was extended beyond 78Â days. Less than one log reduction was obtained in 78Â days of mesophilic composting. Salmonella survival was also extended in mesophilic composting pile.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Engineering - Volume 97, December 2016, Pages 633-641
Journal: Ecological Engineering - Volume 97, December 2016, Pages 633-641
نویسندگان
Pramod K. Pandey, Wenlong Cao, Yi Wang, Venkata Vaddella, Alejandro R. Castillo, Alex Souza, Noelia Silva del Rio,