The dairy industry consists of converting raw milk into various dairy products like pasteurized milk, curd, butter, ghee, whey powder, paneer, cheese, ice creams, etc. Though these products are harmless to the human body (if consumed in correct quantities).
In the processing of milk products, water is being used and so wastewater is generated which is harmful to the environment if not treated properly. It can do a lot of damage to the environment as It has high BOD, COD, and FOGlevels that can lead to eutrophication, if discharged, untreated into the environment. Dairy wastewater also releases a foul odor and has turbid levels.