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Characterisation of sequential leachate discharges of mining waste rock dumps in the Tinto and Odiel rivers

✍ Scribed by A. Sáinz; J.A. Grande; M.L. de la Torre; D. Sánchez-Rodas

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 167 KB
Volume: 64
Category: Article
ISSN: 0301-4797
DOI: 10.1006/jema.2001.0497

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✦ Synopsis

Mining waste rock dumps (WRDs) are potential sources of pollution, which after rainfall produce leachate discharges, loaded with acid mining drainage (AMD). The discharges generally occur in two phases: initial rapid leaching over a period of 1-7 days, followed by a period of variable duration during which leaching decelerates. The relative preponderance of each phase depends on the characteristics of the WRD, including its antecedent hydrological condition, and the temporal pattern and amount of rainfall.

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