Efficiency of food waste management and treatment using an aerated and temperature-controlled in-vessel bioreactor composting system
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Abstract
Given the continuously increasing amount of food waste and inefficient management practices, this study aimed to evaluate the performance of a prototype semi-automated in-vessel bioreactor composting machine capable of controlling temperature, aeration, and pile turning, in comparison with conventional pile composting over a 7-day period. The results showed that the composting machine effectively maintained thermophilic conditions, reduced the moisture content of the composting material to 23.5%, increased seed germination to 46.8%, and produced organic material with particle sizes smaller than 6 mm from the first day of composting. In contrast, conventional pile composting exhibited a higher moisture content (50.54%), a lower germination rate (8.16%), and incomplete organic matter degradation. Chemical and physical analyses revealed that compost produced by the semi-automated system contained higher total macronutrient content (NPK, 3.97%), organic matter (34.63%), and a favorable C/N ratio of 13, meeting organic fertilizer standards and significantly outperforming conventional composting. These findings demonstrate that a prototype semi-automated in-vessel bioreactor composting system is effective in accelerating food waste decomposition, reducing moisture content, and producing high-quality organic amendment. Therefore, this prototype technology shows strong potential for on-site food waste management, supporting resource recycling and reducing environmental impacts.
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บทความลิขสิทธิ์ที่ได้รับการตรีพิมพ์เป็นลิขสิทธิ์ของวารสารเกษตรอนุภาคภูมิภาคลุ่มน้ำโขง คณะเกษตรและเทคโนโลยี มหาวิทยาลัยนครพนม
References
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