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pH Testing Methods for Sulfidic Mine Wastes


Noble, TL and Lottermoser, B and Parbhakar-Fox, A, pH Testing Methods for Sulfidic Mine Wastes, Environmental Indicators in Metal Mining, Springer International Publishing, B Lottermoser (ed), Switzerland, pp. 199-210. ISBN 978-3-319-42729-4 (2017) [Research Book Chapter]

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Copyright 2017 Springer International Publishing Switzerland

DOI: doi:10.1007/978-3-319-42731-7_11


pH tests are useful screening tools for assessing the characteristics of first flush waters draining sulfidic rocks and waste materials at mine sites. Rinse and paste pH tests are part of a suite of static tests used in acid-base accounting assessments. This study presents a comparison of eleven different pH tests (e.g., rinse and paste pH tests as well as soil tests of the International Organization for Standardization ISO 10390:2005, American Society for Testing and Materials ASTM D4972-01(2007) and Standards Australia AS4969.2-2008) using three different sulfidic rock samples and the acid-base accounting standard KZK-1. We show that different rinse and paste pH methodologies using different grain sizes and extraction solutions can result in different risk classification for ARD assessments. We suggest pH testing should be standardized in their grain size and solid to solution ratio. pH tests conducted using unweathered materials (e.g., drill core) should be carried out using a 0.01 M CaCl2 solution.

Item Details

Item Type:Research Book Chapter
Keywords:pH testing, acid mine drainage, sulfide oxidation, mine waste
Research Division:Earth Sciences
Research Group:Geology
Research Field:Geology not elsewhere classified
Objective Division:Environmental Management
Objective Group:Terrestrial systems and management
Objective Field:Evaluation, allocation, and impacts of land use
UTAS Author:Noble, TL (Dr Taryn Noble)
UTAS Author:Lottermoser, B (Professor Bernd Lottermoser)
UTAS Author:Parbhakar-Fox, A (Dr Anita Parbhakar-Fox)
ID Code:112024
Year Published:2017
Deposited By:CODES ARC
Deposited On:2016-10-21
Last Modified:2018-04-23

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