Producción de nanopartículas magnéticas a partir de desechos de la planta de cacao ccn-51 (theobroma cacao l) para el tratamiento de aguas contaminadas con mercurio

Abstract

Water pollution by heavy metals is aggravating the shortage of resource, generating negative consequences in the natural environment, being mercury (Hg) one of the most dangerous heavy metals present in water bodies, which can travel long distances and be deposited far from its source origin, being absorbed by the organisms that are exposed to it and thus being introduced more easily into the trophic chain. Therefore, the objective about this work was production magnetic nanoparticles from cocoa plant waste for the treatment of mercury-contaminated water. For the applied methodology, the synthesis of magnetic nanoparticles (MNPs) was performed by hydrothermal carbonization (HTC) with help an autoclave, MNP characterization techniques were applied with the help of Scanning Electron Microscopy (SEM) and Infrared Spectroscopy (IR), In addition, the effectiveness of magnetic nanoparticles in the treatment of mercury-contaminated water was determined through the development Jar test and Atomic Adsorption Spectrophotometer. The results obtained from development this methodology show a high decrease in the concentration of mercury, since tests were able to determine an average percentage in the removal of this metal 88.42 percent after the application from 1.5 grams of magnetic nanoparticles in the experimental units (EU) 7, 8 and 9. Thus, it was concluded that there is a positive benefit in the process of obtaining magnetic nanoparticles from cocoa shells considering the mercury removal percentages achieved.