Feeds:
Posts
Comments

Archive for the ‘acid mine drainage’ Category

DSCF4279

Today we completed a three-day EduMine webcast on  Mine Water Management.  Some thirty people from all over the world joined in.  Maybe you can join us next time we do this.  But for now, here are a few ideas on research opportunities in mine water management that came up during discussions.

Risk Assessment in Mine Water Management.  There were a few papers at the Tailings and Mine Waste Conference recently on risk assessment for tailings facility management.  I am not aware of any substantial work on the issue of risk assessment in mine water management in the broader context. Much has and can be done with GoldSim, but I know there is a need for fundamental research on this issue.  For example the recently issued Canadian Dam Association Guidelines on Mining Dams (aka Tailings Facilities) recommends design flood recurrence intervals based on the tailings facility hazard ranking.  Neat but without much justification or substantiation.

Acidic Tailings Polymer Amendment.   Polymer amendment of oil sands is successful.  But can this approach be used to limit acid production by tailings?  I have no idea and am not aware of any work in this regard.

Wetland Efficacy.   There is much written and much has been done on this topic.  I suspect, however, that there is much more to be done in the context of mining applications.

Perpetual Mine Water Treatment Cost Estimating.  In my view this is still one of the most difficult issues in mine water management.  It is being done all the time, yet it is still an art, not a science.  We need the deep financial types to tackle this one.

Dealing with Karst at Mine Sites.  There is a rich source of case histories on this issue in South Africa.  Most are tales of woe.  One way to do it is to put you structure that is underlain by karst geology on a foundation of cemented soil and rock—and preferable include copious geogrids in the foundation so that if the sinkhole develops, the foundation bridges the hole and the structure remain intact or at least does not fail rapidly and kill people.

Deep Ocean Disposal.  I have previously noted on this blog that the Chilean mining industry is looking into this practice in great detail.  Surely an examination in concert with Chile by other ocean-bordered countries would be a fascinating research topic for an aspiring young student.

I am sure there are many other interesting related research topics.  Please note your ideas as a comment.

Read Full Post »

DSCF4653

This year I have visited at least sixteen tailings facilities from the far north of Canada to the far south of Chile.  Mainly I was there to see about the state, safety, and ongoing operation of the facilities.  But along the way I had an incredible opportunity to observe and photograph mine water management facilities and systems. In next week’s EduMine webcast on Mine Water Management, I will have a chance to distill these many observations into a coherent whole.  So come join us in the webcast next Tuesday, Wednesday, and Thursday.  But three hours a day each morning and I will update you on the many systems, practices, components, and ideas I have gleaned from these trips and observations.  Many new case histories courtesy of the mines I visited. (more…)

Read Full Post »

DSCF2932

Spent this past week in Quebec looking at mines.   This brought us to Rouyn-Noranda and food at Bistro Jezz.

The food at this little place on a quiet side-street is magnificent: the best I have tasted in many a year of travel to distant mines.

Take a special trip to this restaurant if you seek and relish good food.  Subtle flavours, beautiful presentation, unusual dishes.  Words cannot capture the beauty of fine food in a simple setting.

Here are some photos from this trip.

DSCF2984

DSCF2926

DSCF2923

DSCF2953

DSCF2758

Read Full Post »

tumblr_ms7tfhVbKW1sq4740o1_500[1]

Here is a new document from the US EPA on treating mine-affected waters.  Free to download at this link and worth so doing. The document is titled:  Reference Guide to Treatment Technologies for Mining-Influenced Water (EPA 505-F-12-001). (more…)

Read Full Post »

tumblr_n26c05nGZl1qcla2no1_500[1]

Spent today in a course on Covers in Cold Climates.  The course is part of the seminar to follow tomorrow and Wednesday on the same topics.  Arranged by InfoMine, it is being held in Whistler, which is a nice, but not spectacular place to have a conference—I prefer Banff or Vancouver.   For the Fairmont Chateau Whistler is a pale reflection of those other grand hotels with the Fairmont name: a bland and ugly exterior that replicates in cheap detail the features of the hotel in Vancouver that it tries to emulate. (more…)

Read Full Post »

DSCF2029

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…)

Read Full Post »

DSCF1759

Every so often a presentation at a conference takes your breath away and leaves you amazed at the ability of the speaker and their colleagues. This happened today as a sat listening to Joel Carrasco of Ausenco present on a paper entitled Development of an integrated mine waste management plan of the metates gold-silver project, Durango and Sinaloa States, Mexico.   To get the paper, you will have to get the proceedings of the Tailings and Mine Waste Management 2013 conference or in due course download the presentation that I refer to from the website of the conference–I told it will take week or two to load pdfs of the presentations. (more…)

Read Full Post »

Older Posts »

Follow

Get every new post delivered to your Inbox.

Join 570 other followers