Removal of Chromium(VI) and Chromium(III) Ions from Aqueous Solution Using Bio-char Generated from Agricultural Waste Products

Author

Diego Fernando Gonzalez, The University of Texas Rio Grande Valley

Date of Award

5-2018

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Chemistry

First Advisor

Dr. Jason G. Parsons

Second Advisor

Dr. Evangelina Kotsikorou

Third Advisor

Dr. Frank Dean

Abstract

Heavy metals are one of the most persistent and prevalent contaminants in the aquatic environment. The removal of chromium from aqueous solution, especially in the hexavalent form is difficult. New technologies, techniques and/or new materials have been designed in order to effectively and efficiently remove chromium from the aqueous environment. The project focuses on the comparison of the effects of pH, time, temperature, binding capacity on bio-char’ generated from agricultural waste produces vs an amino modified derivative of the bio-char. Pineapple skins were dried, ground, sieved, and pyrolyzed to produce a bio-char material. The bio-char was analyzed using FTIR to help characterize the potential binding groups on the bio-char. The batch studies, including pH, kinetics, isothermal, and interference; showed new precedence of binding activity that was of particular interested in comparison to previous binding trends observed previously in literature.

Comments

Copyright 2018 Diego Fernando Gonzalez. All Rights Reserved.

https://www.proquest.com/dissertations-theses/removal-chromium-vi-iii-ions-aqueous-solution/docview/2100698141/se-2?accountid=7119

Recommended Citation

Gonzalez, Diego Fernando, "Removal of Chromium(VI) and Chromium(III) Ions from Aqueous Solution Using Bio-char Generated from Agricultural Waste Products" (2018). Theses and Dissertations. 286.
https://scholarworks.utrgv.edu/etd/286