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.

摘要废人类为满足自身需要的产，如菜籽饼来自于菜籽取，来自于水取汁，鸡粪来自于规模化养鸡。