Oxidation Reduction Potential
nounPronunciation: /ˌɒk.sɪ.ˈdeɪ.ʃən rɪ.ˈdʌk.ʃən pəˈten.ʃəl/
A quantitative measurement (in millivolts) that indicates the tendency of a chemical species to gain or lose electrons in aqueous solutions. In abandoned mines, ORP values determine the mobility and toxicity of dissolved metals and the feasibility of various remediation approaches.
Plain English
A measurement showing how easily dissolved substances in mine water will gain or lose electrons and become toxic.
Etymology & History
Usage
"Monitoring oxidation reduction potential helps predict whether iron will remain dissolved or precipitate from the mine discharge."
Style guide notes: ORP values should include units (mV) and temperature conditions when reported in technical assessments.
Also known as
Related Terms
Frequently Asked Questions
Why is oxidation reduction potential important in mine reclamation?
ORP determines whether toxic metals remain dissolved in water or precipitate as solids, critical for treatment design and effectiveness.
What ORP values indicate acidic conditions in abandoned mines?
Positive ORP values typically indicate oxidizing conditions where sulfides oxidize, producing acidic drainage requiring immediate intervention.
Why Test Candidates on This?
Essential for evaluating mine water quality and predicting treatment effectiveness in remediation projects.
Required skill level: Mid