University of Illinois at Urbana-Champaign
Controls on Heavy Metal Mobility at the Pecos Mine Operable Unit, New Mexico
Abstract
dc:descriptionA process model of this drainage shows the main controls on the pH are reaction with local bedrock, limestone conglomerate, and concurrent mixing with tributary streams draining unmined regions. Models that account for both calcite dissolution and mixing of up to three kilograms background water per kilogram of mine drainage water ratio reproduce the observed decrease in aqueous metal concentrations with increasing pH. Contaminant concentrations attenuate via three different pathways: zinc, magnesium, manganese, and sulfate concentrations decrease primarily through dilution; aluminum, copper, and iron precipitate directly from solution as oxide and hydroxide phases; lead adsorbs to precipitating hydroxide surfaces.
Degree
thesis:*- Name thesis:degree_name
- Ph.D.
- Level thesis:degree_level
- Dissertation
- Discipline thesis:degree_discipline
- Geology
- Grantor
- University of Illinois at Urbana-Champaign
- Year dc:date
- 1999
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Berger, Amy Carolyn
- Contributors dc:contributor
-
- Bethke, Craig M.
Subjects
dc:subject × 1Rights
- Language dc:language
- eng
Identifiers
dc:identifier.*- Identifier
- (MiAaPQ)AAI9944795
- OAI identifier oai:identifier
- oai:www.ideals.illinois.edu:2142/86552