Removal of Arsenic (Iii) and Arsenic (V) from Aqueous Solution via Solanum lycopersicum Phytoremediation and Essential Nutrient Analysis

Author

Grecia W. Garcia Salazar, The University of Texas Rio Grande Valley

Date of Award

5-2021

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Chemistry

First Advisor

Dr. Jason Parsons

Second Advisor

Dr. Arnulfo Mar

Third Advisor

Dr. Hassan Ahmad

Abstract

ICP-OES was used to investigate the uptake of arsenic (V) and arsenic (III) from aqueous solution using tomato seedlings. The effect of arsenic on essential nutrient uptake by tomato was analyzed. The experiment was performed at three levels of arsenic: 1ppm, 2 ppm and 5 ppm [added as sodium arsenate (Na3AsO4) and arsenic trioxide (As2O3)], in nutrient solution. Plants remained in solution for two weeks. Arsenic accumulation depended on arsenic concentration in solution, when exposed to higher arsenic concentrations the plant uptake increased. The highest arsenic accumulation was found in roots, followed by stems and leaves in that order. Essential nutrient uptake decreased from control values when plants were exposed to low arsenic levels (1ppm) and increased at high arsenic concentrations (2 ppm and 5 ppm). The arsenite level of 5 ppm damaged roots membranes decreasing arsenic and essential nutrient uptake.

Comments

Copyright 2021 Grecia W. Garcia Salazar. All Rights Reserved.

https://go.openathens.net/redirector/utrgv.edu?url=https://www.proquest.com/dissertations-theses/removal-arsenic-iii-v-aqueous-solution-via/docview/2549666833/se-2?accountid=7119

Recommended Citation

Garcia Salazar, Grecia W., "Removal of Arsenic (Iii) and Arsenic (V) from Aqueous Solution via Solanum lycopersicum Phytoremediation and Essential Nutrient Analysis" (2021). Theses and Dissertations. 669.
https://scholarworks.utrgv.edu/etd/669