A process for making composite products from waste material comprises the steps of a) obtaining fibrous material produced by the thermal treatment of waste materials with pressurized steam； b) mixing the fibrous material with a binding material； c) forming the resulting mixture into a shape； d) pressing the shaped mixture under pressure； and e) hardening the mixture； wherein the process also comprises the steps of the separating out the fibrous material and deodorizing the fibrous material. The waste material may be domestic bin liner waste.
