* Waste oils and oil emulsions
* Iron sludge generated from Dye and Dye intermediate units.
* Iron sludge generated from paracetamol manufacturing units.
* Gypsum generated from Acetyl Sulphonyl Chloride units.
* Iron sludge generated from some of the pickling units of steel and rolling mills.
* Tars
* Spent earths from edible oil refineries
* Spent catalysts from a few units
* Tank bottom residues from petroleum product storage tanks.
* Zinc dross, Zinc Ash, oxide generated from Zinc coating plants
* Process from paint industry.