Scholarlink

<p>This study presents the design, fabrication, and successful operation of a cost-effective biodigester capable of converting kitchen waste (KW) and chicken litter (CL) into biogas. The biodigester was tested with varying ratios of KW and CL (1:0, 2:1, 1:1, and 1:2), maintaining pH levels between 5.5 and 7.0 and using a heating system to enhance digestion. The optimal ratio of 1:1 KW to CL yielded the highest gas production of 136&#xa0;l per day (LPD) with a calorific value of 20,500&#xa0;kJ/m3, containing 58% methane, 27% carbon dioxide, 14% nitrogen, and negligible oxygen. The biodigester performed reliably with stable gas production across trials, demonstrating a quadratic relationship between gas output and time. Economic analysis identified the 1:1 ratio as the most financially viable, offering flexibility in pH management and consistent performance. This research contributes to the field of biogas production by providing a practical solution for managing organic waste, reducing pollution, and producing high-quality biogas, with the added benefit of nutrient-rich slurry for use as manure. The findings support the feasibility of using a biodigester to process up to 50% CL in the feed, making it an effective option for semi-urban areas.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Optimizing Biogas Production Through Co-Digestion of Kitchen Waste and Chicken Litter: Design, Operation, and Economic Feasibility of a Thermophilic Biodigester

  • 期刊论文

  • 发表日期：

    2025年7月31日

查看全文
  • K. S. Murulidhar,
  • B. Puttabore Gowda,
  • R. Chandrashekar,
  • P. M. Suresh,
  • K. Punith Gowda,
  • H. M. Mallaradhya

摘要

This study presents the design, fabrication, and successful operation of a cost-effective biodigester capable of converting kitchen waste (KW) and chicken litter (CL) into biogas. The biodigester was tested with varying ratios of KW and CL (1:0, 2:1, 1:1, and 1:2), maintaining pH levels between 5.5 and 7.0 and using a heating system to enhance digestion. The optimal ratio of 1:1 KW to CL yielded the highest gas production of 136 l per day (LPD) with a calorific value of 20,500 kJ/m3, containing 58% methane, 27% carbon dioxide, 14% nitrogen, and negligible oxygen. The biodigester performed reliably with stable gas production across trials, demonstrating a quadratic relationship between gas output and time. Economic analysis identified the 1:1 ratio as the most financially viable, offering flexibility in pH management and consistent performance. This research contributes to the field of biogas production by providing a practical solution for managing organic waste, reducing pollution, and producing high-quality biogas, with the added benefit of nutrient-rich slurry for use as manure. The findings support the feasibility of using a biodigester to process up to 50% CL in the feed, making it an effective option for semi-urban areas.