Unforeseen geochemical and hydrological triggers of arsenic release during managed aquifer recharge
Abstract/Contents
- Abstract
- Managed aquifer recharge (MAR) is an increasingly applied groundwater storage method to enhance freshwater security and increase resilience to climate extremes. MAR projects are commonly implemented via infiltration or injection of various types of source water into underlying groundwater aquifers. Benefits of MAR extend beyond enhancement of local groundwater supplies; they can provide seawater intrusion barriers, enhance ecosystem services, maintain aquifer capacity and minimize subsidence. Despite the numerous potential benefits, artificial recharge can also adversely impact groundwater quality by altering the native geochemistry and triggering the release of toxic contaminants indigenous to aquifer sediments. Desorption or dissolution, and subsequent mobilization, of contaminants poses a principal challenge to maintaining local groundwater quality, and thus also to ensuring the viability of MAR as a water enhancement strategy. Arsenic imposes the most widespread threat, degrading water quality around the world, where it has deleterious impacts on human and ecosystem health. My research uses a combination of experimental, spectroscopic and modeling approaches to study the geochemical and hydrological causal mechanisms of As mobilization during groundwater recharge.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2018; ©2018 |
| Publication date | 2018; 2018 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Fakhreddine, Sarah |
|---|---|
| Degree supervisor | Fendorf, Scott |
| Thesis advisor | Fendorf, Scott |
| Thesis advisor | Freyberg, David L |
| Thesis advisor | Gorelick, Steven M |
| Degree committee member | Freyberg, David L |
| Degree committee member | Gorelick, Steven M |
| Associated with | Stanford University, Department of Earth System Science. |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Sarah Fakhreddine. |
|---|---|
| Note | Submitted to the Department of Earth System Science. |
| Thesis | Thesis Ph.D. Stanford University 2018. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2018 by Sarah Fakhreddine
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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