Suppose a law requires that all water discharges to a watercourse meet the following standards: - CO2 Less than 15 mg/L - Fe Less than 20 mg/L - Mn Less than 20 mg/L - Suspended flocculant solids Less than 20 mg/L Design a treatment plant for the following water (without calculation) = mention the method used to remove each pollutants without making any calculations or any explanation, by order. - This water contains huge materials. - CO2 = 150 mg/L - Fe = 200 mg/L - Mn = 15 mg/L - Suspended flocculant Solids = 250 mg/L