The advantage of incinerators is that only 10 percent of the original volume of waste is left, and of that, a portion of the ash can be used for road surfacing.
經焚化爐處理過的垃圾，體積只剩本來的十分之一，灰燼若經過加工，還可用做鋪路的材料，如此就能延長垃圾場的壽命。