Acid Neutralization Capacity
nounPronunciation: /ˈæsɪd ˌnjuːtrəlaɪˈzeɪʃən kəˈpæsɪti/
The quantitative measure of a material's ability to neutralize or buffer acidic mine drainage through chemical reactions, typically expressed as tons of acid that can be neutralized per ton of material. This parameter is essential for designing passive or active treatment systems for abandoned mines.
Plain English
The amount of acidity that a material can chemically neutralize or counteract.
Etymology & History
Usage
"Laboratory testing determined the limestone's acid neutralization capacity to size the treatment system for the mine drainage."
Style guide notes: Always specify units (typically mol H+ per kg or CaCO3 equivalent) and reference test method used.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
How is acid neutralization capacity measured?
Laboratory tests expose materials to strong acid and measure how much acid is consumed before pH drops, indicating buffering ability.
Why is ANC important for mine closure?
It determines if natural materials can neutralize drainage long-term, reducing need for expensive active treatment systems.
Why Test Candidates on This?
ANC determination is fundamental to predicting long-term mine drainage behavior and selecting appropriate reclamation treatment approaches.
Required skill level: Mid