Assessment of Mitigation Plan for Arsenic and Fluoride in Groundwater by Artificial Recharge of Rainwater

Abstract

Arsenic and fluoride contamination issues in groundwater are a noteworthy concern. Despite these two parameters being entirely different from one other, the basic circumstances and carcinogenic nature are common to both the parameters. A typical circumstance like Baruipur in the South 24 Parganas of West Bengal, arsenic and fluoride contamination at the same time. This article assesses the potential for dilution of arsenic and fluoride concentration in groundwater dilution, by utilizing rainwater in the campus buildings of Swami Vivekananda Group of institutes in Dakshin Gobindapur, situated in the South 24 Parganas district of West Bengal, India. The total rooftop area of all the surfaces from where rainwater could be endowed is 5180 m2. Utilizing normal precipitation information, and groundwater data collected from CGWB, the calculations for rainwater harvesting potential along with the groundwater recharge design were made. The volume of water that could be collected and effectively used for groundwater recharge in one year was figured to be 3,951,395.22 L. Appropriate filtration for the removal of suspended particles and reducing the turbidity has also been proposed. This manuscript assesses an alternative solution for the arsenic and fluoride contamination issue in the aquifer of the region by injection of rainwater into the groundwater reserve of the underlying aquifer, raising the water table.