Chitosan membrane development and design of equipment for the removal of heavy metals from water

A filtration technique with 1,75% m/v chitosan membranes crosslinked with glutaraldehyde (0,08% v/v) was used to quantify the removal capacity of chromium, copper and cadmium ions from water. A simple and low cost filtration system was developed to use with prepared membranes.The main goal was to us...

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Main Authors: Mora-Molina, Jesús, Chaves-Barquero, Luis, Araya-Marchena, Mario, Starbird-Pérez, Ricardo
Format: Artículo
Language: Español
Published: Editorial Tecnológica de Costa Rica 2012
Subjects:
Online Access: https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/453
https://hdl.handle.net/2238/4287
Summary: A filtration technique with 1,75% m/v chitosan membranes crosslinked with glutaraldehyde (0,08% v/v) was used to quantify the removal capacity of chromium, copper and cadmium ions from water. A simple and low cost filtration system was developed to use with prepared membranes.The main goal was to use biodegradable materials for removing heavy metals from water, through a low energy consumption, cheap, and specific method.As a result, two data sheets were prepared for the membranes. It was found out that chromium was the metal with the highest removal from water, by using a crosslinked membrane. Metal adsorption was best adjusted to the Freundlich isotherm model, better than Langmuir isotherm model.However, it was found no correlation between pore size and crosslinking degree.