Dairy Industry Wastewater Treatment
The treatment of food industry wastewater involves several similar technological steps, regardless of the specific sector in question: be it the dairy industry, or slaughterhouses and meat processing. If the treated wastewater is discharged into the public sewer, in most cases a chemical/physico-chemical, so-called coagulation-flocculation process is sufficient; if the treated wastewater is discharged directly into a natural watercourse, the chemical treatment must be followed by a biological treatment stage as well. Our company – and its legal predecessor – has built numerous dairy industry wastewater treatment plants, and we have significant experience in this field too.
The first step of the design work is to survey the wastewater-generating manufacturing technology. Extensive literature data are available on the specific values that can be expected for the manufacturing of individual product groups (e.g. fresh dairy products, cheeses) – this information is a good complement to the on-site sampling survey. At KÖRTE Kft., the treatment technology is always developed on the basis of laboratory tests, and occasionally pilot-plant scale trials.
Main steps of the general chemical treatment scheme
- screening, removal of solid pollutants
- collection, homogenisation
- pH adjustment by acid/alkali dosing
- coagulation by dosing iron- or aluminium-based chemicals
- flocculation by dosing polymer solution
- phase separation by sedimentation or flotation
- sludge dewatering with a plastic chamber filter press
- discharge of the treated water into the sewer via a metering shaft
KÖRTE Környezettechnika Kft. offers its clients a complete, turnkey solution. If you would like to discuss the wastewater treatment technology of your dairy plant, please contact us through one of our available channels.