Investigation of Cyanide Attenuation Potential of TSF Clay Liner: Investigation of Cyanide Attenuation Potential of the Sub-Strata Material of the TSF at GoldFields Ghana, Ltd, Tarkwa. - Couverture souple

Yeboah, Kofi Antwi

 
9783659633201: Investigation of Cyanide Attenuation Potential of TSF Clay Liner: Investigation of Cyanide Attenuation Potential of the Sub-Strata Material of the TSF at GoldFields Ghana, Ltd, Tarkwa.
Couverture souple
ISBN 10 : 3659633208 ISBN 13 : 9783659633201
Editeur : LAP LAMBERT Academic Publishing, 2016

Synopsis

The attenuation properties of the clay samples considered and evaluated were hydraulic conductivity, permeability characteristics and geochemical properties (pH,OMC,CEC,Iron Oxide and AEC). Attenuation results were analyzed in conjunction with that of Total and WAD CN obtained from field leaching tests at five sites. Low hydraulic conductivity and a combination of low acidic pH, relatively high AEC and low CEC were identified to be the major driving attenuation properties that favour cyanide attenuation. The average concentration of Total CN concentration detected within a radius of 3m is 0.02 mg/l, constituting 99.9% attenuation of CN introduced. The hydraulic conductivity and permeability values computed from grain size analyses of the sub-strata material are 6.2 x 10-3to 1.4 x 10-2m/day and 6.1 x 10-12 to 1.39 x 10-11m2 respectively. The TSF sub-strata material has a pH range of 4.3 to 4.8, a CEC range of 1.92 to 2.89 meq/100g and an AEC range of 881.25 to 1278.25 meq/l. The attenuation rate of CN at the five (5) stations remained constant at 0.021 mg/l/hr as time increased. This book is targeted at mining industry professionals and academia.

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Présentation de l'éditeur

The attenuation properties of the clay samples considered and evaluated were hydraulic conductivity, permeability characteristics and geochemical properties (pH,OMC,CEC,Iron Oxide and AEC). Attenuation results were analyzed in conjunction with that of Total and WAD CN obtained from field leaching tests at five sites. Low hydraulic conductivity and a combination of low acidic pH, relatively high AEC and low CEC were identified to be the major driving attenuation properties that favour cyanide attenuation. The average concentration of Total CN concentration detected within a radius of 3m is 0.02 mg/l, constituting 99.9% attenuation of CN introduced. The hydraulic conductivity and permeability values computed from grain size analyses of the sub-strata material are 6.2 x 10-3to 1.4 x 10-2m/day and 6.1 x 10-12 to 1.39 x 10-11m2 respectively. The TSF sub-strata material has a pH range of 4.3 to 4.8, a CEC range of 1.92 to 2.89 meq/100g and an AEC range of 881.25 to 1278.25 meq/l. The attenuation rate of CN at the five (5) stations remained constant at 0.021 mg/l/hr as time increased. This book is targeted at mining industry professionals and academia.

Biographie de l'auteur

The author holds a BSc. in Geological Engineering and MSc. in Water Resources Engineering and Management from KNUST, Kumasi-Ghana. He is currently a PhD. Candidate in Environmental Engineering Management at the University of Energy and Natural Resources, Sunyani-Ghana and works at Newmont Ghana Gold Ltd as the Water Modeling Engineer.

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Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2016
Langue
anglais
ISBN 10 
3659633208
ISBN 13 
9783659633201
Reliure
Broché
Nombre de pages
100
Coordonnées du fabricant
non disponible
Personne responsable
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