Improving Biogas Production Performance From Pomegranate Waste, Poultry Manure and Cow Dung Sludge Using Thermophilic Anaerobic Digestion: Effect of Total Solids Adjustment
سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 143
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شناسه ملی سند علمی:
JR_EEHS-2-3_003
تاریخ نمایه سازی: 14 آذر 1402
چکیده مقاله:
Biogas is one of the most important sources of renewable energy and is considered as an environmental friendly energy source. One
of the most important parameter influencing the production of biogas is total solids (TS). Aims: In this study, the effects of different total
amount of solids, which consisted of ۵, ۱۰, ۱۵, ۲۰, ۲۵, and ۳۰% treatments, on the biogas production were examined. The solids were obtained
at a thermophilic temperature (۵۵°C) from a mixture of pomegranate rind, cow manure, and sludge in ۱۵ days using one-liter glass bottles.
Materials and Methods: The influences of TS, volatile solids (VS), pH, and carbon-to-nitrogen ratio on the biogas production volume from
optimized TS treatment were also evaluated. In addition, pomegranate peel was pretreated for lignocellulosic destruction. Results: The results
showed that the biogas production increased from ۰.۲۷۳ to ۰.۷۳۶ L/day with an increase in TS from ۵ to ۲۵%. The ۲۵% treatment had the
highest mean biogas production (i.e., ۰.۷۳۶ L/day). Significant difference was observed between the ۲۵% treatment and all other treatments
except the ۲۰% treatment. The regression model showed that the VS was the only parameter that had a significant effect on biogas production.
This parameter justified about ۷۴.۱% of the biogas production accuracy. Conclusion: Anaerobic digestion is an appropriate technology to
achieve the organic fraction of solid wastes. Due to higher biogas production, dry anaerobic digestion is of more importance than wet and
semi-dry anaerobic digestion.
کلیدواژه ها:
Anaerobic digestion ، biogas ، concentration of total solids ، cow manure ، pomegranate wastes ، poultry fertilizer
نویسندگان
Vajiheh Ghasemi Ardaji
Department of Environmental Science, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
Hadi Radnezhad
Department of Environmental Science, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
Mohsen Nouruzi
Department of Environmental Science, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran