Waste derived from human activitirs, such as rapeseed placentiform from the extraction of rape oil;fruit faeces from the extraction of fruit juice;chicken excrement from the scall farming of chickens.

摘要废弃物是人为满需要的产物，如菜籽饼来油菜籽取油，果渣来水果取汁，鸡粪来规模化养鸡。