Fabrication of an iron reduction treatment unit for ground water.

• Main Authors: Daza, Junerose L., Rivera, Anne Kristy N., Reyes, , Eduardo Jean T.
• Format: text
• Language: English
• Published: Animo Repository 2000
• Subjects: Water > Purification > Iron removal; Other Chemical Engineering
• Online Access: https://animorepository.dlsu.edu.ph/etd_bachelors/10256
• Institution: De La Salle University

Iron-laden groundwater from Brgy. Mayamot, Antipolo, Rizal was treated primarily with aeration and filtration processes. A laboratory scale iron removal plant, 7 in diameter and 45 in height was used in the experimental setup. Three kinds of media arrangements were carried out in this study. These were the double stage sand filtration set-up, single stage gravel filtration set-up and a double stage gravel filtration setup. The experiments were also varied according to different water fowrates (0.222, 0.422,0.667,0.883,1.119 gpm). Groundwater was brought to the laboratory fresh from the source. Samples were collected after each experimental run. These were analyzed for pH, acidity, alkalinity, total hardness and iron content. Percent iron reduction of groundwater in all the cases were studied. This revealed an increase in iron reduction percentage as the flowrate was decreased. In a double stage sand filter, percent iron reduction ranges from 86.06 to 90.57. In a single stage gravel filter, percent iron reduction is from 52.09 to 79.355. In a double stage gravel filter, percent iron reduction is from 52.09 to 79.355. In a double stage gravel filter, percent iron reduction is from 52.17 to 83.775. Percent reductions in acidity and hardness were also increased as flowrate was decreased. In a double stage sand filter, the acidity percent reduction is from 52.17 to 83.775. Percent reductions in acidity and hardness were also increased as flowrate was decreased. In a double stage sand filter, the acidity percent reduction ranges from 59.095 to 63.63, while the hardness percent reduction ranges from 24.135 to 27.585. Percent alkalinity increased as flowrate was decreased. Alkalinity percent increase in a double stage sand filter ranges from 138.46 to 184.615. Alkalinity percent increase in a single gravel filter ranges from 68.75 to 200. Alkalinity percent increase in a double stage gravel filter ranges from 12.5 to 62.50. The pH were monitored and registered a reading of 7-8. In almost all cases the values showed that when the flowrate was decreased and with the aeration lengthened, a better yield of iron removal was achieved. Also, there was a decrease in total hardness and acidity but an increase in alkalinity.