While the groups of demands for milk and milk-derived products throughout the world make the dairy industry prolong, on the other hand, the amounts of wastes and wastewaters change in parallel through.
Considering the high organic content of dairy industry wastewater and the amount of water used in the processes/the amount of wastewater generated, are important resources fort he environment. Depending on the product type, the quality of the water used, the production technique and control, 6-10 liters of waste water is generated by processing 1 liter of milk.
Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) parameters are high due to lactose, milk fat, suspended/dissolved nutritional solid content, soluble organic components, sulfate and chloride contents of dairy industry wastewater.
Although the amount and characteristics of the dairy industry wastewater vary from business to business depending on the production method and product type, the most important polluting parameters are Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Suspended Solids (AKM), pH, oil and grease, temperature.