Reverse osmosis system in arsenic removal from groundwater in Pacora

Abstract

The contamination in the sources of water consumption in the department of Lambayeque has caused that said sources are not drinkable; Therefore, the objective of this study is to determine the efficiency of the osmosis system in the removal of arsenic in groundwater, treated with 1, 2 and 3 activated carbon filters. The water samples were analyzed in two series (one with filter of activated carbon and another only with the osmosis system), and finally the analyzes were carried out in the Regional Water Laboratory of Cajamarca, with the technique of Coupled Induced Plasma Mass Spectrometry (ICPMS). The results showed high efficiency of the reverse osmosis system, in the district of Pacora hamlet Las Juntas an Arsenic concentration of 0.018mg/L was found, which when compared to the Supreme Decree 031-2010 - SA is above the limit of 0.010mg /L, the efficiency of the reverse osmosis system with activated carbon filters had an efficiency of 72.78% in the removal of arsenic which removed 0.0131mg/L, unlike the treatment with 1,2 and 3 filters, it did not show removal of metals in Arsenic in relation to the application of osmosis system.
Keywords: Arsenic, groundwater, reverse osmosis, ICPMS.