NDLI: Prediction of AMD generation potential in mining waste piles, in the sarcheshmeh porphyry copper deposit, Iran

Content Provider	Springer Nature Link
Author	Modabberi, Soroush Alizadegan, Ali Mirnejad, Hassan Esmaeilzadeh, Esmat
Copyright Year	2013
Abstract	This study investigates the possibility of acid mine drainage (AMD) generation in active and derelict mine waste piles in Sarcheshmeh Copper Mine produced in several decades, using static tests including acid–base accounting (ABA) and net acid-generating pH (NAGpH). In this study, 51 composite samples were taken from 11 waste heaps, and static ABA and NAGpH tests were carried out on samples. While some piles are acid producing at present and AMD is discharging from the piles, most of them do not show any indication on their AMD potential, and they were investigated to define their acid-producing potential. The analysis of data indicates that eight waste piles are potentially acid generating with net neutralization potentials (NNPs) of −56.18 to −199.3, net acid generating of 2.19–3.31, and NPRs from 0.18 to 0.44. Other waste piles exhibited either a very low sulfur, high carbonate content or excess carbonate over sulfur; hence, they are not capable of acid production or they can be considered as weak acid producers. Consistency between results of ABA and NAGpH tests using a variety of classification criteria validates these tests as powerful means for preliminary evaluation of AMD/ARD possibilities in any mining district. It is also concluded that some of the piles with very negative NNPs are capable to produce AMD naturally, and they can be used in heap leaching process for economic recovery of trace amounts of metals without applying any biostimulation methods.
Starting Page	9077
Ending Page	9087
Page Count	11
File Format	PDF
ISSN	01676369
Journal	Environmental Monitoring and Assessment
Volume Number	185
Issue Number	11
e-ISSN	15732959
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-06-28
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Acid mine drainage Net acid generation Neutralization potential AMD prediction Porphyry copper deposit Environmental Monitoring/Analysis Environmental Management Ecotoxicology Atmospheric Protection/Air Quality Control/Air Pollution Ecology
Content Type	Text
Resource Type	Article
Subject	Pollution Medicine Management, Monitoring, Policy and Law

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