Research Mentor(s)
Sofield, Ruth M.; Maki, Benjamin
Description
Arsenic from anthropogenic sources and geological weathering is a contaminant of concern in sediment environments of Washington State. Legacy contamination can be attributed to extensive application of lead-arsenate pesticides and industrial smelting processes. Arsenic contamination of sediment provides an exposure pathway into groundwater and can potentially contaminate drinking water. Metal bioavailability of contaminated sediment is greatly influenced by the presence of acid volatile sulfides and organic carbon. Activated carbon (AC) has been shown to be an effective in-situ treatment for decreasing bioavailability of organic contaminants in sediment. Less is known about the applicability of AC to decrease metal mobility in the sediment environment.
Document Type
Event
Start Date
19-5-2016 12:00 PM
End Date
19-5-2016 3:00 PM
Department
Environmental Sciences
Genre/Form
student projects; posters
Subjects – Topical (LCSH)
Arsenic--Absorption and adsorption; Water--Purification--Arsenic removal--Washington (State)
Geographic Coverage
Washington (State)
Type
Image
Keywords
enic, sediment, activated carbon, sorption
Rights
Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this documentation for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.
Language
English
Format
application/pdf
Included in
Kinetic and equilibrium sorption modeling of arsenite and arsenate onto Lake Whatcom sediments and activated carbon.
Arsenic from anthropogenic sources and geological weathering is a contaminant of concern in sediment environments of Washington State. Legacy contamination can be attributed to extensive application of lead-arsenate pesticides and industrial smelting processes. Arsenic contamination of sediment provides an exposure pathway into groundwater and can potentially contaminate drinking water. Metal bioavailability of contaminated sediment is greatly influenced by the presence of acid volatile sulfides and organic carbon. Activated carbon (AC) has been shown to be an effective in-situ treatment for decreasing bioavailability of organic contaminants in sediment. Less is known about the applicability of AC to decrease metal mobility in the sediment environment.