Industries become major consumers of water resources due to the increase in demand for products. The wastewater generated from the industries needs treatment for reuse or discharge in the environment to prevent pollution. Wastewater treatment techniques help in the protection of the health of the public and environment. The treatment techniques vary from one type of industry to other due to the quality of effluent discharge from operations, energy and chemical requirements, process flexibility, and residual disposal options. The chapter focuses on characteristics of wastewater from different industries, their treatment techniques such as preliminary, primary, secondary, and advanced treatment processes, and treatment effectiveness for reuse of the treated water. The chapter also focuses on the comparative study of different wastewater treatment techniques as one type of treatment method selected for the treatment of one type of industry may or may not be suitable for the other type of wastewater from another industry.
KeywordsReclamation of treated water • Reverse osmosis • Ultrafiltration •