Oil shale waste,a waste residual by carbonization or burning of oil shale,would seriously pollute environment and occupy large area of useful land without rational reuse.

• 油母页岩渣(灰)是油母页岩干熘或燃烧后排出的废渣,如果不合理利用则会挤占大量土地,对环境造成严重影响。