Consulting | Treatability Testing

Constructed Wetlands also offers technical studies and consulting services to aid decision-making. In this particular study, the company was responsible for developing a treatability test for a physicochemical system to be installed upstream of a wetland system for the partial treatment of water flow from a water body affected by mining tailings spills.

For this purpose, the study included conducting Jar Tests to define the optimal coagulation pH and the ideal application dosage, comparing three coagulants: Polyaluminum Chloride (PC), Aluminum Sulfate (AS), and Aluminum Chlorohydrate (AC). Twenty-seven Jar Tests were performed, each consisting of five stages: 1) pH correction, 2) Coagulant addition, 3) Rapid mixing, 4) Slow mixing, and 5) Sedimentation. The final quality and ecotoxic potential of the treated effluent, as well as the quality, settleability, and volume of sludge generated after the sedimentation stage, were also evaluated for each test.