Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Desert Marigold Arsenic Uptake and Phytoremediation Potential on Mine Tailings in the Eastern Mojave Desert

Auteur : Harvey, Spencer R.

Université de soutenance : Northern Arizona University

Grade : Master of Science in Environmental Engineering 2021

Résumé
The aim of this study was to contribute to information for evaluating the potential for the phytoremediation of abandoned mine tailings at the Arizona Magma Mine and whether the desert marigold (Baileya multiradiata) is a viable candidate for the extraction of arsenic. Phytoremediation represents a low-cost solution for the management and cleanup of heavy metals using engineered systems of native vegetation that have a high tolerance and the ability to accumulate metals. The Arizona Magma Mine has a four-acre mine tailings pile that has been abandoned for 80 years yet remains largely devoid of vegetation. Plant samples were taken from the site and submitted for DNA analysis to develop a site-specific plant inventory that will be used to inform future phytoremediation strategies and research at the site. The plant inventory includes species identifications of the plants and any prior research on their tolerance to arsenic and potential for arsenic uptake. Mine tailing cores, collected to...

Présentation

Version intégrale (ProQuest)