Optimal aeration management strategy for a small-scale food waste composting  

作　　者：Jia Chi Lai Yi Lung Then Siaw San Hwang Chung Sien Lee 

机构地区：[1]School of Engineering and Science,Faculty of Engineering,Computing and Science,Swinburne University of Technology,93350 Kuching,Sarawak,Malaysia [2]Department of Electrical and Electronic Engineering,Faculty of Engineering,Universiti Malaysia Sarawak,94300 Kota Samarahan,Sarawak,Malaysia

出　　处：《Carbon Resources Conversion》2024年第1期79-88,共10页碳资源转化（英文）

摘　　要：Food waste is a significant contributor to greenhouse gas emissions when it ends up in landfills.Composting turns out to be a sustainable solution to this problem,but it requires controlled and continuous airflow for optimal performance.This study focused on the effect of aeration rates and airflow directions on food waste composting using a closed system with forced aeration.Air was entered into the composting vessel in three directions,which were upward,downward,and a combination of both directions.Each direction was run at aeration rates of 0.1,0.4,and 0.7 L/min.The findings showed that the compost pile aerated at 0.4 L/min by using two-directional airflow can reach the thermophilic temperature within half of the day.The compost pile achieved temperature of 40.94℃ after 10.5 h.Although the compost experienced slightly high in moisture loss(4.3%),the compost still attained the standard values for maturity.The compost produced from food waste could be applied in soil to improve its fertility.

关 键 词：Small-scale composting Two-directional airflow Intermittent aeration Food waste 

分 类 号：S14[农业科学—肥料学]