Class
Article
College
College of Engineering
Department
English Department
Faculty Mentor
Kyle Moor
Presentation Type
Poster Presentation
Abstract
Erosion of wildfire-affected organic matter and/or its physical disintegration in water results in the formation of pyrogenic Dissolved Organic Matter (py-DOM), which can react with ground state oxygen to produce singlet oxygen (1O2) in the presence of light. 1O2 has a high electronegativity and oxidizing potential which influences the photo-transformation and the environmental fate of organic contaminants present in the water, hence, it is essential to quantify its production from wildfire-derived py-DOM, which is absent in the past literature. In this study, py-DOM was extracted from wildfire-affected tree portions from the Colorado Grizzly Creek Fire. Time-resolved 1O2 phosphorescence was used to determine the production of 1O2 from py-DOM. Results from this study will aid in understanding the role of py-DOM during the photo-transformation of organic contaminants both in natural sunlit environments and light-involving water treatment systems.
Location
Logan, UT
Start Date
4-8-2022 12:00 AM
Included in
Photochemistry of Wildfire Derived Pyrogenic-Dissolved Organic Matter (py-DOM) for Photodegradation of Aquatic Contaminants
Logan, UT
Erosion of wildfire-affected organic matter and/or its physical disintegration in water results in the formation of pyrogenic Dissolved Organic Matter (py-DOM), which can react with ground state oxygen to produce singlet oxygen (1O2) in the presence of light. 1O2 has a high electronegativity and oxidizing potential which influences the photo-transformation and the environmental fate of organic contaminants present in the water, hence, it is essential to quantify its production from wildfire-derived py-DOM, which is absent in the past literature. In this study, py-DOM was extracted from wildfire-affected tree portions from the Colorado Grizzly Creek Fire. Time-resolved 1O2 phosphorescence was used to determine the production of 1O2 from py-DOM. Results from this study will aid in understanding the role of py-DOM during the photo-transformation of organic contaminants both in natural sunlit environments and light-involving water treatment systems.