River water treatment learning using coagulation, ferrolite, manganese greensand, and resin

Alternative treatment of river water in Avur Wonorejo River (raw water) in reducing levels of Turbidity, Total Dissolved Solid (TDS), Hardness, Chloride (Cl-), Iron (Fe), and high E.coli is a combination of coagulants, filtration, Ferrolite, Manganese Greensand, and resins. The purpose of this study was to determine the effect of Coagulation, Filtration, Ferrolite, Manganese Greensand, and Resin treatments and the magnitude of the effect of variations in the addition of the coagulant Sucolite SP 210 (16.4 ppm, 21.4 ppm, and 26.4 ppm) on the decrease in Turbidity, TDS, Hardness, Cl-, Fe, and E.coli in raw water. The data collection method was carried out for 1 day with 3 times of time replication (07.00; 08.00; and 09.00). The results showed the magnitude of the effect of the treatment, there was a decrease in the maximum concentration at the time of taking raw water at 09.00 with the addition of the coagulant Sucolite SP 210 of 26.4 ppm, with a decrease in the concentration of TDS by 62%, Turbidity 96%, Hardness 47%, Cl- 35%, Fe 87%, and E.coli 89%. However, the E.coli content decreased by a maximum of 790 CFU/100 mL (89%) because the E.coli content at the inlet was very high at 886 CFU/100 mL, so the decrease in E.coli still could not meet the quality standard.