The treatment of industrial sludge has been going on for a while now and there exists various treatment methods and techniques which differ in terms of financial (device, process, etc…) and practical (space and treatment volume) constraints. The discharge of industrial waste often results into harmful agents that negatively affect our environment and lifestyle. Leather treatment finds many applications to our daily life and its manufacturing process makes it one of the most important sources of pollution to the environment.

The present work deals with the filtration characterisation and dewatering techniques applied to an industrial sludge made of leather-fibre particles. The raw sample was collected from leather factory and was tested. The study focuses on characterising particles’ physical and geometry properties obtained from the sedimentation rate, centrifuge machine, particle size and spectrophotometry measurements. Particle size analysis of the raw sample showed that...