Environmental auditing in transition — Yesterday, today, and tomorrow

Cette publication n'est pas offerte dans votre langue; certains de ses renseignements ont été préremplis pour la version française.
Accés complet à Document technique
Version PDF pour 20,00 $
Recherche
Trier par :  Pertinence
Affichage des résultats 1 - 10
Texte
Publication: CIM Bulletin
Auteur(s): T.F. Pugsley, D. Gignac
Numéro: 1005
Volume: 89
Année: 1996
Texte
Publication: CIM Bulletin
Auteur(s): Graham Farquharson, James Marshall
Numéro: 1005
Volume: 89
Année: 1996
Texte
Publication: CIM Bulletin
Auteur(s): Lawrence Devon
Numéro: 1005
Volume: 89
Année: 1996
Texte
Publication: CIM Bulletin
Auteur(s): D.E. Wakefield
Numéro: 1005
Volume: 89
Année: 1996
Texte
Publication: CIM Bulletin
Auteur(s): Joanna LaForte
Numéro: 1005
Volume: 89
Année: 1996
Texte
Sommaire: The pace at which mining will occur in Northern regions and Arctic lands will depend on the answers to a number of questions. Who are the local aboriginal participants? What land uses are they pursuing? What are their objectives? What is their understanding of the process of mining development? This paper will focus on the last question, communicating the process of mineral development to local aboriginal communities.
Publication: CIM Bulletin
Auteur(s): Donald E. Wakefield
Numéro: 1005
Volume: 89
Année: 1996
Texte
Sommaire: This paper is a practical overview of ways to reduce cost in the design and operation of an Arctic mine. The economically important issues of the Arctic mine that will be addressed include: permafrost and the active zone in general terms; road building in and over permafrost; Arctic geotechnical mine design considerations; pit dewatering techniques in subzero temperatures; and blasting frozen materials with techniques to obtain optimal results. A final section on a few special topics...
Publication: CIM Bulletin
Auteur(s): Alan E. Renshaw
Numéro: 1005
Volume: 89
Année: 1996
Texte
Sommaire: Alaska’s Red Dog Mine is strengthening its position within Cominco’s “Vision 2000” strategic plan by continually improving quality and quantity of production while reducing costs. Red Dog has evolved into a stable and mature operation, after six years of milling experience. A high grade, partially oxidized ore body in the severe Arctic environment, along with competing producers in a volatile metals market, are the continuing challenges facing Red Dog. The Red Dog Mine is striving to...
Publication: CIM Bulletin
Auteur(s): M. Naseem Mian, Curtiss O. Ehrsam
Numéro: 1005
Volume: 89
Année: 1996
Texte
Sommaire: In December 1994, Polaris decided to investigate the use of cemented rockfill (CRF) to supplement the existing frozen rockfill system. Extraction plans for the remaining ore reserves required a backfill with superior stiffness properties and capable of developing high early strengths. Although CRF has been used successfully at several mining operations, there was the additional challenge of making a reliable cemented product in permafrost conditions. There was also the challenge of procuring...
Publication: CIM Bulletin
Auteur(s): Steve Dismuke, Tom Diment
Numéro: 1005
Volume: 89
Année: 1996
Texte
Sommaire: In this study, potential benefits of flocculant usage were explored in the processing of mill tailings by hydrocyclones. Tests conducted on copper-nickel mill tailings have demonstrated
that, under suitable conditions, flocculation could significantly enhance solid-liquid separation in hydrocyclones. For example, at a feed pulp density of approximately 9%, flocculantassisted hydrocyclone produced an underflow with over 98% solids recovery, compared to a recovery of less than 53% with...
Publication: CIM Bulletin
Auteur(s): Turgut Yalcin
Numéro: 1005
Volume: 89
Année: 1996
Activé par Coveo Enterprise Search