WWTP with trickling filter Horizontal treatment plant with settling-digestion chambers, biological filter, activated carbon filter and secondary settling tank. Function: • Removal of organic matter (BOD5). • Removal of suspended solids (SS). • Colorless and odorless water. Characteristics:

        The dual function filter system will be integrated in the second and the third compartments of each and every concrete WWTP Function: • Removal of organic matter (BOD5). • Removal of suspended solids (SS). • Reduction