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
- محل انتشار: مجله زمین شناسی،محیط زیست و علوم بهداشتی، دوره: 2، شماره: 3
- کد COI اختصاصی: JR_EEHS-2-3_003
- زبان مقاله: انگلیسی
- تعداد مشاهده: 54
نویسندگان
Department of Environmental Science, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
Department of Environmental Science, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
Department of Environmental Science, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
چکیده
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 fertilizerاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.