The Effect Of Colloidal Reactive Particles On Nanoremediation Of Arsenic In Porous Media
Arsenic is a highly toxic metalloid that is a proven carcinogen. Its global primary medium of exposure is groundwater and its sources therein are both natural and anthropogenic. Arsenic can be found in geological formations naturally, however human activities may significantly augment its introduction to groundwater systems. Borehole operation, aquifer reinjection, geothermal fluid discharge and mining activities are major anthropogenic causes of increased arsenic release from mineral phase to aqueous phase. Release of arsenic to groundwater is also favored in higher temperature conditions, thus geothermal fluids tend to carry high amount of arsenic provided that there exist arsenic rich geological formations nearby. Nanomaterials can provide a cost-effective solution alternative for environmental remediation of arsenic from natural porous systems. Thus, the main objective of this study is to investigate mechanisms of removal and effects of reactive colloidal transport for arsenic remediation via different types of novel adsorptive nanomaterials including iron oxides and graphene. For this purpose, laboratory batch and column studies are being devised and geochemical and transport modeling tools are to be utilized.
By Sarp ÇELEBİ
Advisor: Prof. Dr. Kahraman ÜNLÜ
Co-advisor: Assist. Prof. Dr. Sema Sevinç ŞENGÖR
Date & Time: May 5th, 2021 at 15:40