Experimental Investigation of Biogas Yielding Rate from Anaerobic Co-Digestion of Multiple Organic Feedstocks Using a Bio-digester
- سال انتشار: 1403
- محل انتشار: مجله پیشرفت در تحقیقات بهداشت محیط، دوره: 12، شماره: 4
- کد COI اختصاصی: JR_JAEHR-12-4_004
- زبان مقاله: انگلیسی
- تعداد مشاهده: 75
نویسندگان
Department of Mechanical Engineering, Akwa Ibom State Polytechnic, Ikot Osurua, Nigeria, PMB ۱۲۰۰
Department of Science Technology, Akwa Ibom State Polytechnic, Ikot Osurua, Nigeria, PMB ۱۲۰۰
Department of Mechatronics Engineering, Akwa Ibom State Polytechnic, Ikot Osurua, Nigeria, PMB ۱۲۰۰
چکیده
Background: The high cost of fossil fuels has driven the exploration of renewable energy alternatives. This study investigates the anaerobic co-digestion of waterleaf, cow dung, and food waste to optimize biogas production. Methods: Four co-digestion experiments were performed using a prototype plastic bio-digester over ۵۰ days. The combinations tested were: waterleaf with cow dung, waterleaf with food waste, food waste with cow dung, and a mix of all three feedstocks. Results: Co-digestion of waterleaf and food waste yielded an average biogas output of ۲۵%, with a pH of ۷.۲ and a carbon-to-nitrogen (C/N) ratio of ۲۸. Combining waterleaf and cow dung produced a ۳۱% yield, a pH of ۷.۲, and a C/N ratio of ۲۹. The mixture of food waste and cow dung resulted in a ۳۴% biogas yield, with a pH of ۷.۱ and a C/N ratio of ۳۰. The highest yield, ۴۶%, was achieved by co-digesting waterleaf, cow dung, and food waste, with a pH of ۷ and a C/N ratio of ۳۲. All feedstock combinations maintained neutral pH levels, benefiting from the unique properties of each component: waterleaf provided vitamins A and C, food waste supplied carbohydrates and proteins, and cow dung contributed anaerobic microbes essential for digestion. Additionally, temperature was a significant factor influencing biogas production. Conclusion: Co-digesting waterleaf, cow dung, and food waste maximized biogas production, demonstrating the potential for enhanced renewable energy generation through optimized anaerobic digestion processes.کلیدواژه ها
Biogas, anaerobic digestion, Energy, Organic feedstock, Co-digestionاطلاعات بیشتر در مورد COI
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