Primary treatment involves the physical separation of suspended material from the water or wastewater stream. In many cases it may also involve chemical coagulation and flocculation to enhance removal efficiency. The combination of physical-chemical treatment incorporating dissolved air flotation clarification is one of KWI’s specialties.
This technology is currently used in food processing plants and dairies, where fats, oils and greases must be removed, in paper production effluent, in industrial effluent treatment, in municipal effluent before biological treatment.
The choice of both process and equipment will depend on the application. KWI has a large installation database at its disposal and this, along with the possibility of running pilot plant simulations, laboratory tests and analysis, enables the best combination of these to be implemented.