The automotive sector, which is of great importance in terms of production, employment, and export in our country’s economy, has taken its place as the third-largest sector after the food and textile industries.
Production processes in the automotive industry consist of four main processes; press, welding, painting, and assembly.

The main source of wastewater in the automotive industry is surface treatment, paint, and water treatment processes. The main pollution parameters arising from these wastewaters are Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Suspended Solids (TSS), and various heavy metals.
The main processes applied for automotive industry wastewater treatment are physical, chemical, and biological processes.
