Evaluación de la capacidad de adsorción de la corteza de plátano (musa paradisiaca) para la remoción de metabisulfito y amonio presentes en aguas residuales de camaroneras

Abstract

This research had as main objective to evaluate the adsorption capacity of the banana bark (Musa paradisiaca) for the removal of metabisulfite and ammonium present in shrimp wastewater, for which samples were obtained composed of wastewater from two different shrimp farms, to which a triplicate physicochemical analysis was performed. The parameters analyzed in the water samples were: electrical conductivity, PH, turbidity, salinity, sedimentary solids, suspended solids, alkalinity, COD, ammonium, sulfite. After this, samples of banana bark (Musa paradisiaca) were obtained, which were exposed in a drying oven at 80oC, after drying the bark, sieving. It was worked with three water samples at different concentrations of metabisulfite, with three treatments of banana bark, at amounts of 5.10 and 20 grams corresponding, with two-particle sizes 850 um and 40 mm respectively, subjected to two times of 30 minutes and 24 hours exposure, for each test 3 repetitions were performed with their respective targets. Obtaining 72 experimental units and 24 targets. The final concentration of metabisulfite and ammonium post-treatment was determined by UV-VISIBLE spectrometry and finally, the Langmuir equation model was applied to determine the adsorption capacity of the banana bark. For the statistical analysis, an analysis of Variance of a factor (ANOVA) was applied, where a significant difference was obtained between the treatments applied, according to its particle size and exposure time, which P1 proved to be more appropriate for this process with an exposure time of 24 hours by its contact surface. It is concluded that the banana bark can adsorb metabisulfite and residual water ammonium up to 6.81 times its weight for sulfites and 12.36 for ammonium obtaining a removal percentage of up to 80% and 56% correspondingly with respect the initial concentration, which makes a recommended sorbet. Exploit the potential adsorption capacity of banana bark according to its properties to remove other types of contaminants from water or soil.