residues are waiting to serve
    -Pulp and shells of coffee
-Shells of Cashew, Pepper
-Roots
-Straw
-Rice and other cereal husks
-Maize spindels
-Mango and other fruit seeds
-Milling dust
-Tree-Bark 
-Sewage sludge and faeces 
-Paper sludge
-Clothing sewing residues
-Screening oversize of river 
 dams, composting, biogas
    
 
 