摘要 : Several different composts were examined both at bench-scale and on-site. The samples were taken from full-scale windrow composting plants at different stages of maturation. Oxygen, carbon dioxide and methane profiles within the m... 展开 Several different composts were examined both at bench-scale and on-site. The samples were taken from full-scale windrow composting plants at different stages of maturation. Oxygen, carbon dioxide and methane profiles within the material matrix for each sample were monitored and values for specific oxygen uptake rate (SOUR), moisture content (MC), and volatile solids (VS) were also determined. Methane was detected inside some of the composting piles (with values higher than 10% by volume) and in one of the bench-scale systems (with values up to 0.9% by volume) but never within the upper 0.20 meters of material. The profiles indicated that the methane was probably oxidized within the mass and consequently methane release during the maturation stage of the composting process was probably not common.. 收起