Reduction of Lead present in the waters of the Tulumayo river through the use of chitosan [Reducción de plomo presente en aguas del rio Tulumayo mediante uso de quitosano]

Paul Lara Ospina, Jhonny Valverde Flores

Abstract


The research aimed to determine the efficiency of chitosan to decrease the concentration of lead present in the Tulumayo River, Chanchamayo. A pre-sampling was carried out in 8 equidistant points of 20 meters each, in order to find the point with the highest concentration of lead. A sample of 19 liters of water from the Tulumayo River was collected and sent to the laboratory for analysis. Knowing the result (0.121 ppm of lead), 12 treatments of 0.5 L each were made with 3 repetitions respectively, in total 36 samples were treated. 90% acetic acid was used to lower the pH of each sample, allowing it to bubble for 30 minutes, then be filtered. It was treated at different pH and chitosan concentrations. The highest yield was 90% at pH 5 with 0.3g of chitosan.


Keywords


Lead, chitosan, efficiency, removal

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DOI: https://doi.org/10.32829/eesj.v3i1.118

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