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Archive for the ‘Enviromental’ Category

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There is still time to join us for the upcoming EduMine webcast Advanced Tailings and Mine Waste Facility Design, Operation, and Closure.  Here is the link to the course.

Even if you have taken other courses before conferences, or the other EduMine webcast on Introduction to Tailings, or our previous Advanced Tailings courses, I know you will find interesting and exciting information, perspectives, practices, and case histories in this new course.

We have completely renovated the materials.  First we feature, on each of the three days of the webcast, a series of talks by Christian Kujawa, Robert Cooke, and Ian Hutchison on these topics:

  • Conventional tailings.
  • Thickened tailings.
  • Filter pressed tailings.

Christian and Robert are with Paterson and Cooke—they are leading consultants in making, transporting, and distributing tailings.  They have put together a great series of presentations on thickeners, cyclones, pipes conveyors, and the details of making and working with thickened, paste, and filtered tailings.  Their presentations will put you at the cutting edge of technology and practice in the production, transport, and distribution of all types of tailings.

Ian Hutchison is with SLR—he and his colleagues are experts in the design, construction, operation, and closure of tailings facilities.  They have assembled a suite of new case histories from North America, Australia, and South Africa.  Most are new to me—and I follow the topic pretty carefully.

I will come in from time to time to talk of theses new topics:

  • Risk assessment and decision-making for tailings management.
  • Dam safety inspections and evaluations.
  • Case histories on new project that I am working on–I am particularly proud that Nyrstar are permitting me to talk of closure planning for the Myra Falls mine here in BC.

In addition I will present summaries of the best new papers to be presented at the upcoming conference Paste 2014.  I have read all the papers and here I present a preview of those that impressed me most.  Time permitting, I will also talk about papers to be presented next week in Brazil at the conference on Mine Closure.

Lawrence Charlebois will spend an hour or so on that most difficult set of tailings topics, namely rheology, beaching, and Optimized Seasonal Deposition of polymer amended tailings.  For polymer amendment works.  I know that.  It just needs a bit of bold field application and the oil sands folk will be seen as heroes.

In short, this is a great opportunity to come up to speed with the newest & best in tailings.  Come join us and advance your knowledge & career by hearing from the most knowledgeable & experienced in the field.  I look forward to meeting & talking with you.  And it is a hell-of-a-lot cheaper than those expensive conferences where you fall asleep through dull presentations by amateurs.

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Below is a report that hit my email inbox today.  I repeat in full, not because mines are the main culprit, but because mines are probably NOT the main culprit.  This report is a sobering reminder that dry-cleaners, car-battery recyclers, old military bases, and jails are also major contaminators.  Yet so little is written or done about them—it is not a very sexy topic–so much easier to excoriate mining. Not that Giant, Faro, and a few other old mines are going to be cheap to cleanup. (more…)

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Constructing covers over mining wastes at sites in cold climates involves consideration of these factors that are unique to cold climates: (more…)

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On Tuesday I was in yet another of those asinine arguments about what constitutes “perpetual” in mining and mine closure.  I had heard all the arguments, smart and cynical, more than thirty years ago when we debated them on the UMTRA Project.  But the pusillanimous arguments continue, for everyone has an opinion and wants to be heard. (more…)

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On the plane to the site I dipped into Nasim Taleb’s latest book, Antifragile.  I read a few chapters and have stowed the book for the return fight.  But I picked up enough to know that an antifragile system is one that thrives on change, shock, time, and other perturbing factors.  An antifragile system is the opposite of a fragile system that inevitable breaks as a result of time, shock, disturbance, and the propagation of a mere crack. Antifragile system thrive on disorder; fragile systems do not. (more…)

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Here are two email that I received this earlier this week.  I repeat almost as received, editing out only a few names and dates that are not germane to the story. (more…)

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Late Saturday and I am browsing the internet.   Here is an amazing report that I chanced on.

It deals with the Rosemont copper project to-be in Arizona. It is called the Infiltration, Seepage, Fate and Transport Modeling Report.

It is more than 400 pages long, so download it and read it, and wonder at the cost to produce.  Should we be doing this for all mines?

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A standard Sunday bike ride: down the hill, along the treed lanes, and to the Lonsdale Quay for lunch.  There along the pier was the USS Lake Champlain and thousands of people in line to get closer to see it. (more…)

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This is a picture of the electric car charging station at the local MEC store.  Never seen a car here, in spite of the many outdoors-men who shop for expensive clothes and gear to climb mountains, ride bikes, and hike in the woods.

Here are the four e-resources that I found in a search of the first twenty pages of a Google-search using the terms mine energy balance: (more…)

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Browsing the web earlier this week I came across the site of the South African Department of Water Affairs.  There I found the following Best Practice Guidelines relevant to mine water management: (more…)

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