Application of UASB Reactor in Industrial Wastewater Treatment – A Review

The contents presented in this paper focuses on the performance of UASB (Upflow Anaerobic Sludge Blanket) reactor for treating various industrial and domestic wastewaters at various operating conditions. The reactors can be used conveniently for the treatment of tannery, distillery, food processing, metal mining, dairy, domestic wastewater etc. The performance of the reactor mainly depends on the OLR and HRT. The author highlighted to enhance the start-up and granulation in UASB reactors, biogas (methane and biohydrogen) production, coupling with post-treatment and the reactors to overcome the temperature constraint and pH, improving the removal efficiencies of the organic matter, nutrients and pathogens in the final effluent. Kinetics, models and hydraulic characteristics are useful to verify the experimental data and also helpful for the further research.