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Proposed B.C. mine plans to reduce water content in waste but still use tailings dams
Thursday, December 31, 2015
KGHM International’s proposed Ajax copper and gold project will be one of the first tests of the B.C. government’s approval of waste storage for large open pit mines after the Mount Polley mine dam failure in 2014. read more »
BHP, Vale have assets frozen over Samarco damages
Monday, December 21, 2015
Two of the largest mining companies in the world are being held to account by the Brazilian government over a massive tailings dam rupture. read more »
Imperial Metals escapes charges from Mount Polley tailings breach
Thursday, December 17, 2015
No charges will be laid by the provincial government due to the failure of the Mount Polley tailings dam, said the B.C. chief mines inspector. The chief inspector found that the mine and its engineers employed weak practices on the mine site. read more »
Brazilian mine disaster renews tailings pond concerns
Tuesday, November 17, 2015
Vancouver firm’s dewatering technology could help prevent catastrophic floods from mines. read more »
Vale: 'Several years' to recover from Brazil mine disaster
Monday, November 16, 2015
Vale (NYSE:VALE) said on Monday that it would take several years for Brazil's Doce river to recover following a deadly tailings dam burst at an iron ore mine it jointly owns with BHP Billiton (LON:BHP, ASX:BHP). read more »
Several casualties feared after tailings dam bursts in Brazil
Thursday, November 05, 2015
There are conflicting reports on the number of dead and missing after Samarco's tailings dam breached. Up to 16 people are reported dead and another 45 are missing according to local reports. read more »
BC government forms panel to act on Mt Polley recommendations
Wednesday, June 24, 2015
The British Columbia government is forming a panel to determine the best way to act on the recommendations it received from its investigation of the Mount Polley Mine breach in Northwest British Columbia. read more »
Mount Polley mining disaster caused major changes to ecosystem - study
Wednesday, May 06, 2015
Nine months after Canada’s Mount Polley copper and gold mine’s tailings pond breach, a new report has found a number of changes in the local ecosystem caused by the massive spill. Researchers from the University of Northern British Columbia and the University of B.C., who studied the sediment plume of waste and water within Quesnel Lake in the three months following the incident, have concluded the water reservoir’s ecosystem has changed. read more »
Engineering firm focuses on tailings, backfill management
Wednesday, April 29, 2015
To the untrained eye, a visit to Kovit Engineering’s lab in Sudbury looks like a number of adults playing with combinations of sand, silt and water. read more »
Canadian miners step up efforts to prevent tailings dam failures
Tuesday, March 17, 2015
Seven months after the equivalent of 2,000 Olympic swimming pools from a collapsed tailings dam were dumped into lively waterways in Canada’s British Columbia, the country’s mining association (MAC) is getting serious on safety. read more »
Evaporative Solutions - Managing Mine Waters
Wednesday, February 18, 2015
Walked around the exhibit hall at the Denver SME convention. The booth at the SME that caught my attention today was that of Evaporative Solutions. read more »
Are other tailings ponds in B.C. at risk of failing?
Tuesday, February 10, 2015
How many more of the 98 mine tailings ponds in B.C. are vulnerable to sudden, unexpected collapse? And is there a viable alternative to storing massive amounts of mine waste under water behind dams? read more »
Mount Polley Geotechnical Report Released
Friday, January 30, 2015
Independent inquiry into the Mount Polley tailings pond breach concluded that evidence indicates the breach was the result of a failure in the foundation of the embankment read more »
Queensland wants coal waste to be dumped onshore, not near reef
Tuesday, October 07, 2014
Australia’s Queensland state government has backed plans for dumping dredging waste from the expansion of coal export terminals at Abbot Point onshore, instead of near the Great Barrier Reef. read more »
Crack in Mount Polley mine’s dam noted in 2010 inspection report
Friday, September 26, 2014
A 2010 dam safety inspection at the Mount Polley gold and copper mine identified several concerns, including the discovery of a 10 to 15-metre long “tension” crack in the earthen dam. read more »
Imperial Metal to raise $100 M to cover Mount Polley cleanup costs
Friday, August 15, 2014
Imperial Metals Corp. will raise $100 million through debentures to cover the cleanup costs of its Mount Polley mine disaster, and plans to move ahead with the commissioning of its Red Chris mine, despite the project being $61 million over budget and picketed by First Nations. read more »
Canada’s Mount Polley disaster: experts warned tailings pond 'getting large'
Monday, August 11, 2014
A breach at Imperial Metals' (TSX:III) Mount Polley Mine tailings pond in Canada’s British Columbia may have been avoided had the company listened to concerns raised by engineers that designed the containment system, Knight Piésold Consulting said. read more »
Statement by Knight Piésold Ltd. regarding the Mount Polley Mining Incident
Friday, August 08, 2014
The breach of the tailings storage facility at Mount Polley is an extremely unfortunate incident and Knight Piésold Ltd. shares the concerns with respect to the effects to local communities, First Nations and the environment. As the former Engineer of Record of the tailings storage facility at Mount Polley, we feel it appropriate to provide some clarity and transparency of the role of Knight Piésold Ltd. read more »
Cleanup of tailings pond spill will take years: expert
Friday, August 08, 2014
A couple of years is how long one expert thinks it will take to clean up the mess from the tailings pond that burst open near Likley. read more »
Mining Association of BC is Monitoring The Mount Polley Tailings Dam Incident
Wednesday, August 06, 2014
The Mining Association of British Columbia (MABC) is following very closely the events related to the Mount Polley incident. The breach of the tailings dam at Mount Polley mine is a serious concern and MABC is thankful that there have been no reports of loss of life or injury. read more »
Some facts about the Mount Polley Mine
Wednesday, August 06, 2014
An outline of some basic facts about the Mount Polley mine and the recent tailings pond spill by Bernard von Schulmann, a BC-based land use consultant who has focused on Crown land public issues for 20 years. read more »
Amazing aerial footage of the Mount Polley tailings dam failure
Tuesday, August 05, 2014
GlobalBCTV reporters filmed stunning shots of destruction caused by the Mount Polley Mine tailings pond breach. Also videos from the Cariboo Regional District and a local resident. read more »
Tailings pond breach at Imperial Metals' Mount Polley Mine
Monday, August 04, 2014
A night time breach at Imperial Metals' Mount Polley Mine tailings pond has resulted in a large debris field and water ban in the British Columbia interior affecting 300 residents. read more »
UBC researcher wins top award for study that examines mining waste
Monday, July 21, 2014
It has been a long road for UBC researcher Craig Nichol to help devise a green solution to mitigate landscape contamination from mine tailings. A joint research paper on the subject, which for various reasons took more than a decade to complete, has won top national honours. read more »
Aussie scientists develop cost-effective way to treat mining wastewater
Thursday, June 12, 2014
A new cost-effective technology to treat mining wastewater and reduce sludge by up to 90% has been used for the first time at a copper mine in Queensland. read more »
Genomic tools offer vision of a cleaner mining industry
Friday, April 25, 2014
Bacteria may be small, but they do heavy lifting in remediation and extraction. A few key microbes are on the verge of becoming key players in B.C.’s mining industry. read more »
Geosynthetics in Mining and Geomembrane Durability
Wednesday, March 05, 2014
Kerry Rowe, Research Chair in Geotechnical and Geoenvironmental Engineering at Queen’s University, gave a talk about the dura read more »
Province never inspected berm that burst at Obed mine tailings pond
Thursday, February 27, 2014
The berm around the Obed mine coal tailings pond that failed last fall had not been inspected by the province because it was not classified as a dam, a public forum at the University of Alberta was told Thursday. read more »
The Best Mine Waste Cover is No Cover
Monday, February 24, 2014
The best cover is no cover. If you can use the upper tailings or waste rock as the growth medium in which a stand of climax vegetation will flourish, you have the best cover. read more »
Long-Term Closure Criteria for Mine Waste Disposal Facilities
Thursday, February 20, 2014
Here's what I wrote in 1991 about criteria for covers and closure of waste facilities. This is from my book Principles and Practice of Waste Encapsulation. With Charles Reith I wrote this book on the basis of what we did to construct the encapsulation facility at the Weldon Spring site near St Louis, Missouri.  read more »
Oilsands study confirms tailings found in groundwater, river
Thursday, February 20, 2014
New federal research confirms that Alberta’s oilsands are polluting ground water and seeping into the Athabasca River. The industry has maintained that toxic chemicals are contained safely in tailing ponds, but new research shows this isn’t the case. read more »
GlencoreXstrata acquitted of water pollution charge
Tuesday, February 11, 2014
GlencoreXstrata has been found not guilty of failing to report a dirty water leak at its Bulga coal mine in 2011. The Environment Protection Authority says hundreds of litres of dirty water leaked from a faulty pipe at the mine on October 9, 2011. read more »
CSIRO Has Developed a New Treatment for Removing Contaminants from Mining Wastewaters
Wednesday, June 12, 2013
In current processes, the mining industry generally adds lime to the wastewater to purify it. This complex practice could end soon, thanks to a new treatment solution that utilises hydrotalcites. Developed by CSIRO, the treatment overcomes the complexities of lime-based methods and offers a simpler and more water smart process. read more »
Oil Sands Tailings Technology and Processes
Tuesday, June 04, 2013
There are many challenges involved with tailings ponds. They cover large areas and are composed of sand, silt, clay, and oil. Getting the finer particles to sink is one challenge. read more »
Advanced Tailings Management Webcast
Monday, June 03, 2013
EduMine is holding another session of the live webcast Advanced Tailings and Mine Waste Facility Design, Construction, Operation, and Closure. Things move seemingly so fast regarding tailings that we are adding new material and changing the emphasis as requested in comments on the first course. read more »
Deep-sea Tailings Placement
Thursday, May 30, 2013
Deep-sea mine tailings placement (DSTP) is an alternative to land-based mine-waste disposal, whereby mineral ore is converted into slurry and transported via a pipeline to processing plants located at the coast, with the resultant waste being discharged into very deep water offshore. read more »
Mine Water Dragons aka, Challenges, Solutions, and the Pebble Mine by EPA
Monday, April 29, 2013
Here is a PowerPoint presentation made by Andy Robertson at last week’s conference in Lima, Peru on Mine Water Solution in Extreme Environments. read more »
Windblown Mine Tailings Cause Haze Over Butte
Wednesday, April 17, 2013
Windblown mine tailings created a haze over Butte, and health officials suggest people with respiratory problems avoid being outside. The Montana Standard reports dust from the Yankee Doodle Tailings cast a haze over the city read more »
Tailings Water Balances Presentation at Mine Water Solutions in Extreme Environments Conference
Tuesday, April 16, 2013
Here is a link to a presentation made today at the Mine Water Solutions in Extreme Environments conference by Christoph Wels of RGC. He deals with the knotty issue of modeling the water balance of a tailings impoundment. read more »
Oil Sands Miners Advance New Technologies for Tailings Management
Monday, January 21, 2013
Over several decades of oil sands mining, producers have tried a number of methods, such as cyclone separation, gypsum additives and flocculant treatments, to reduce the time it takes for suspended fine tailings particles to consolidate to a level that would allow reclamation of storage facilities to begin read more »
Tailings and Mine Water Conferences in 2013
Tuesday, December 18, 2012
I estimate you could spend at least a full month in 2013 attending conferences on tailings; and you could travel around the world while doing so. Here are some you should attend. read more »
Local Perspective on the Tailings Failure at Philex Mining Corp.'s Padcal Mine
Tuesday, August 28, 2012
A tailings pond in the Philippines at Philex Mining Corporation's Padcal gold mine was discovered to be leaking on August 1. Here's what some of the local news sources are saying about this latest tailings failure. read more »
Easwara Origins Corp - Returning Water to Its Original State
Wednesday, August 08, 2012
Are you wondering if there is a sustainable way to separate oil from wastewater? Take a look at what Easwara Origins Corp. can do for you. Their proprietary nano-cyclonic process uses sustainable chemistries to separate the oil from produced water. read more »
Tailings Dams: Where Mining Waste is Stored Forever
Friday, August 03, 2012
Are you wondering how long a tailings dam lasts, what is the safest type of dam, and who oversees them? There is a great article on PBS.org that explains the basics of tailings dams and talks about what their future holds. read more »
British Columbia Tailings Failure at the HB Mine Near Salmo, British Columbia
Friday, July 06, 2012
There is a report of potential failure of a tailings dam at the former HB Mine property near Salmo, British Columbia, Canada. A report says some sloughing of the earthen dam was observed and there is ongoing seepage from sections of it.  read more »
Mine Tailings Facility Make-Up Water Requirements: The TMF Water Balance Revisited
Monday, June 04, 2012
This past weekend I was thinking of mine tailings water balance calculation and quantification of make-up water requirements. Here is a summary of my thoughts read more »
Military drones for Mines and Tailings
Monday, May 28, 2012
I can hardly wait to get my first project involving the use of a drone to monitor the performance of a mine tailings facility. These days some are so big that it is impossible to see them all in one glance. read more »
Innovation in Mining: A New Book from PDAC and the Mining Assocation of Canada
Wednesday, May 09, 2012
At this link you will find a fascinating book put out by the Mining Association of Canada and the PDAC. It is called 100 Innovations in the Mining Industry. read more »
EduMine, AMEC, and Jack Caldwell on Mine Tailings
Wednesday, April 25, 2012
It was almost six months ago that we met at the 2011 Tailings and Mine Waste Conference in Vancouver. It is only six months until we meet at the 2012 conference in Colorado, and before that we have to write the papers. read more »
Roy L. Soderberg and his Contribution to Mine Tailings
Thursday, April 12, 2012
Abstracts for the Tailings and Mine Waste Conference 2012 to be held in Keystone, Colorado October 14-17, 2012 are due the end of this week. Here is one idea that should be written up, but probably won’t. read more »
The History of Tailings Filter-Pressing from SME’s One Mine
Monday, April 09, 2012
You will need to access the SME One Mine Library to get the earliest papers on filter pressing of tailings. Here are interesting points from some read more »
Mine Tailings Beach Pioneers and Innovators
Tuesday, April 03, 2012
Beaches have a way of attracting attention. Tailings engineers are no less immune to the draw of beaches. Beaches have a different meaning to folks on a mine. read more »
Stability Analysis of Tailings Dams – Focus on Numerical Modelling
Monday, March 26, 2012
Here is a link to a Licentiate Thesis by Muhammad Auchar Zardari of the Lulea University of Technology in Sweden. Its title is Stability Analysis of Tailings Dams – Focus on Numerical Modelling.  read more »
Evaluating Mining Project EIAs
Thursday, March 15, 2012
The Environmental Law Alliance Worldwide at this link has a publication all prospective miners and mine investors should read. The publication is free to download. I have, and recommend you do so too. The document is Guidebook for Evaluating Mining Project EIAs. read more »
More on EIAs for Mines, New, Expanded, or Closing
Thursday, March 15, 2012
Integral to any new mine or expansion of a mine is the preparation of an Environmental Impact Assessment (EIA). If you seek to significantly expand the mine’s tailings, waste rock, or heap leach facilities, you may have to prepare a new or supplemental EIA read more »
The Past & Future of Tailings Disposal
Tuesday, March 13, 2012
Mike Gowan of Golder Associates in Australia has enabled me to post at this link a PowerPoint presentation of a talk he gave earlier this month in South Africa.  read more »
Cover Technology: Wismut to Suncor’s Pond 5
Tuesday, March 13, 2012
Clap! The sound a big volume of mining proceedings made when it landed on my desk this morning. read more »
Waste Dump Site Selection Using Fuzzy Logic
Friday, March 02, 2012
The CD containing some of the papers presented at the SME conference in Seattle two weeks ago has just appeared on my desk. Let me discuss the first papre to catch my attention. read more »
Design A Mine Waste Facility: Guidance From Wisconsin
Tuesday, February 14, 2012
The Wisconsin legislature has just posted a proposed new law on mining in the state. At 191 pages it is not a short read; but it is a must-read. read more »
Oil Sands and Other Tailings Trafficability
Tuesday, January 31, 2012
I came across a short hand-written piece that I penned in 1982. This piece is interesting in light of the muddle made by the Alberta ERCB in demanding an oil sand tailings strength of 10 kPa read more »
Project Objectives for Management of Tailings, Waste Rock, and Heap Leach Pads
Thursday, January 12, 2012
As in any project, set the project objectives before you do anything else. Here are some objectives grouped according to the major activities (tasks) that are commonly used in mine waste disposal projects. read more »
Natural Acid Rock Drainage in Colorado
Friday, December 23, 2011
This report, Natural Acid Rock Drainage Associated with Hydrothermally Altered Terrane in Colorado, examines the water quality and geology of several areas in Colorado exhibiting acid rock drainage (ARD) that is not caused by mining, but by nature. read more »
USGS Data - Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010)
Thursday, December 01, 2011
The U.S. Geological Survey (USGS) and the National Geospatial-Intelligence Agency (NGA) have collaborated on the development of a notably enhanced global elevation model named the Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) that replaces GTOPO30 as the elevation dataset of choice for global and continental scale applications. read more »
Tailings and Mine Waste 1994 and the Boldness of Those Times
Monday, July 11, 2011
Today, July 11 is the deadline for submission of papers to the Tailings and Mine Waste 2011 conference. In preparation of one of my papers, I read through the proceedings of the 1994 conference. I am amazed at how bold the folk were in those days read more »
The Basic Principles of Mine Tailings Management
Friday, June 24, 2011
The story of tailings management is the story of application of a few basic principles. All involve control of the forces of nature. read more »
Merrispruit Tailings Failure
Thursday, June 23, 2011
Browsing through the proceedings of the 1998 conference on Tailings and Mine Waste I came across three papers on the failure of the Merrispruit Tailings Impoundment. read more »
Mine Tailings Failure Challenge from Michael Davies of AMEC
Monday, May 23, 2011
Mike Davies is the pre-eminent tailings engineer of present times. He and his team in Vancouver can solve any tailings challenge your mine may face. read more »
Why Dams Fail in Mining and Civil Projects
Monday, April 25, 2011
Sometimes tailings dam fail because of the poor quality of the construction. Sometimes mine geowaste facilities fail because of poor design. read more »
Soane Mining's Tailings Treatment Technology
Tuesday, April 12, 2011
Soane Mining is commercializing a recently developed tailings treatment technology capable of rapidly treating tailings streams produced during mining operations, thus arresting a growing environmental problem at its source. read more »
Oil Sands Tailings Conference and Directive 74
Friday, December 10, 2010
The Second International Oil Sands Tailings conference was held in Edmonton, Alberta, December 5-8, 2010. This year the focus was on polymer amendment of Mature Fine Tailings read more »
Presentations from Tailings and Mine Waste 2010 Conference
Wednesday, November 17, 2010
The Tailings & Mine Waste 2010 conference took place in Vail, Colorado. If you did not attend the conference and do not have a copy of the proceedings, here is how you can access many of the excellent presentations read more »
No Prosperity Mine in British Columbia
Wednesday, November 03, 2010
If you live in British Columbia you probably know about the Federal Government’s refusal to allow Taseko’s Prosperity Mine to proceed. The reason: the mine would impact fish as a result of the use of Fish Lake for the mine tailings. read more »
Tailings Dam Failures
Monday, October 25, 2010
At the Tailings and Mine Waste conference in Vail earlier this week, somebody at dinner said this: "I am sick of hearing people talk about other people's tailings impoundment failures. Why can't anyone stand up and say 'this is why the dam I designed failed'?" read more »
Tailings and Mine Waste 2010
Monday, October 25, 2010
The Tailings and Mine Waste 2010 conference in Vail, Colorado was a great success. The themes at this year’s conference focused on why tailings dams fail and on oil sands tailings advances in the past decade. read more »
Hungarian Tailings Failure - Can it happen in Canada?
Friday, October 08, 2010
CBC ran a story on the aluminum tailings failure in Hungary and the potential of a similar disaster happening in Canada. read more »
Wapisiw Lookout: The First Reclaimed Oil Sands Tailings Impoundment
Thursday, September 23, 2010
Pond 1 at the Suncor oil sands mine is officially reclaimed and the Alberta Premier today attended the official opening ceremony. He said it makes him proud to be an Albertan to see what has been achieved. read more »
MSHA to Review Mine Tailings Dam Safety
Monday, August 30, 2010
Here is an issue that is fascinating and the information is a trifle tedious to find. The topic is a call from MSHA for comments on ways to make mine tailings dams safer. read more »
Sinkholes
Tuesday, June 08, 2010
When water from rainfall moves down through the soil and encounters bedrock in karst terrain, the bedrock begins to dissolve along horizontal and vertical cracks and crevices in the rock. Eventually, these cracks and crevices ... read more »
Understanding the types of aquifers in the Canadian Cordillera hydrogeologic region
Thursday, March 11, 2010
Groundwater is often viewed as a mysterious and challenging resource to manage as it is hidden underground. Generally, the only obvious sign of groundwater to the public is water flowing from a spring
or from a well. Where and how the groundwater got to the spring or well and how much is available are questions of interest when trying
to protect the resource.
 read more »
Combating acid rock drainage: industry collaborates on ARD Guide
Tuesday, February 09, 2010
A guide to reducing Acid Rock Drainage (ARD) has been produced by The International Network for Acid Prevention. This internet-based global best practices guide for the prevention and mitigation of ARD was recently published by the International Network for Acid Prevention (INAP). INAP is an international consortium of major mining companies, working collectively to combat the issue of ARD. read more »
Mapping the way
Monday, December 07, 2009
Surveying is a vital discipline throughout the mining process – embracing exploration, mining and closure. GPS has been a boon to surveying but has many other related uses in making operations more productive and safer. read more »
Economic Success Leads to Tailings Dam Failure?
Tuesday, November 10, 2009
A paper by AMEC engineers from the 2009 Conference on Tailings and Mine Waste discusses the possible correlation between economic conditions and tailings dam failures. read more »
Thermodynamics of selective roasting of arsenic from tennantite containing copper concentrates
Monday, November 09, 2009
Australia exports ~ 3 millions of tpa of base metals in form of concentrate and refined metals. Base metal ores contain low levels (1- 104 ppm) of toxic/hazardous elements (As, Sb, Bi, Cd, Hg, Se, Te, Po, Th, U, ..). Smelters impose treatment charges and penalty payment on minor elements in concentrates and reject those beyond the level they can safely process. read more »
DOE-Sponsored Mississippi Project Hits 1-Million-Ton Milestone for Injected CO2
Thursday, November 05, 2009
A large-scale carbon dioxide (CO2) storage project in Mississippi has become the fifth worldwide to reach the important milestone of more than 1 million tons injected. As a result, it is helping to both further carbon capture and storage (CCS) as a mitigation strategy for global climate change and move forward G-8 recommendations for launching 20 projects of this type internationally by 2010. read more »
Chemical optimisation and sustainability in flotation
Wednesday, September 30, 2009
The depletion of mineral resources associated with the cost and limited availability of water and energy is putting pressure on the industry to optimise its processes, especially concentration by flotation, Ricardo Capanema reports. read more »
Forest restoration
Wednesday, September 30, 2009
Mining and conservation are often considered to be incompatible land uses. Yet, economically important mineral deposits often occur in areas with high biodiversity and therefore, high conservation value. read more »
Planning for the future
Wednesday, September 30, 2009
In the introduction to ICMM's Planning for Integrated Mine Closure: Toolkit, the authors describe planning for closure as being "about how to design a mine operation in order to facilitate closure. When a project is designed,there is a lot of scope to do so with closure in mind..." read more »
Cost breaking
Wednesday, September 30, 2009
Fragmentation within the mine is often overlooked as a critical element in the process and can be used to provide essential process control information. SPLIT digital fragmentation technology has been available for some time, with applications from the mine with post-blast analysis at the muck pile face through to the mechanical comminution circuit with ... read more »
Viva Las Cruces
Wednesday, September 30, 2009
After an almost year-long suspension Las Cruces in southern Spain made the final leap into production in June. Daniel Gleeson examines a mine reporting contained copper of some 2,425 MIb, an estimated 15-year mine life and some exciting copper processing advances. read more »
The road to Grasberg
Wednesday, September 30, 2009
Until Bechtel built the first road in the early 1970s, and Freeport Indonesia subsequently developed the area, subrivers were the only access inland to the foothills of the Jayawijaya mountain range on Irian Jaya that hosts what is arguably the greatest ore complex discovered in the world to date, the Grasberg and Ertsberg copper gold deposits. read more »
Slimes Dams at Johannesburg Mines in District 9 Movie
Wednesday, September 16, 2009
The recent movie District 9 is not just about aliens. The big slimes of mines around Johannesburg are featured throughout the movie.  read more »
Researchers Study Impacts of Coal Mining on Water Resources
Monday, August 31, 2009
As the federal government announces new plans to protect water resources, these research efforts are underway to provide objective scientific information to policy makers and to those involved in the debate surrounding mountaintop-removal and other forms of coal mining. read more »
Online moisture analyser (for bulks such as iron ore or coal) easy to commission, calibrate and service
Friday, June 26, 2009
Callidan Instruments, the manufacturer of MoistScan®, has recently added remote access functionality to its range of online microwave moisture analysers. The MoistScan is now equipped with internet-based wireless connectivity making remote calibration and service easy and cost effective. read more »
Oil Sands Effective Stress & Analysis
Friday, May 29, 2009
A wise professor made a presentation that caputured an enduring fact and a recent change in tailings analysis and modeling. read more »
Water Treatment Technologies for Oil Sands Mining
Thursday, May 28, 2009
To produce oil from the oil sands field in Alberta, huge amount of water is used. Specifically, water is used to separate bitumen from the sand at a high water to oil ratio. read more »
Electronic Journal on California Gold Rush and Gold Mining
Thursday, May 14, 2009
The Sierra College Press has published an electronic journal on the California Gold Rush and Gold Mining. This eJournal is the latest edition of Snowy Range Reflections: A Journal of Sierra Nevada History and Biography. read more »
Cyanide Code
Thursday, May 7, 2009
The "International Cyanide Management Code For The Manufacture, Transport and Use of Cyanide In The Production of Gold" (Cyanide Code) is a voluntary industry program for the gold mining industry read more »
Opal Mining & Prospecting in NSW
Tuesday, April 21, 2009
So you feel like going out for fire opals in New South Wales? Then you better behave ‘cause the Big Brother’s watching you. read more »
Clay & Tailings Consolidation
Monday, March 09, 2009
In the last few months on tailings projects from the furthest north of Canada to the tip of South America I have looked at consolidation analyses done to predict how long it will take to consolidate the tailings. read more »
Man-made earthquake?
Thursday, February 05, 2009
Did dam trigger the devastating 2008 Sichuan quake? read more »
ERCB Oil Sands Tailings Regulations
Friday, February 20, 2009
Comments on the new Alberta ERCB regulations pertaining to oil sands tailings impoundment closure and reclamation. read more »
Underground Tailings Disposal
Monday, February 02, 2009
Here is an interesting discussion of underground disposal of tailings at the Doris North Project: Tailings is often disposed of in underground mines as backfill to provide ground or wall support read more »
Alaska Tailings in the Supreme Court
Tuesday, January 13, 2009
The highest court in the land has chosen to hear the issue of whether the Kensington gold mine in Alaska may put their tailings into Lower Slate Lake read more »
First International Oil Sands Tailings Conference
Tuesday, December 16, 2008
The First International Oil Sands Tailings Conference was held in early December 2008 in Edmonton, Alberta. read more »
Tailings Conference Presentations
Monday, November 17, 2008
In October 2008 in Vail, Colorado, I attended the conference Tailings & Mine Waste ’08. Thanks to the organizers of the conference and the presenters, we can make available here on TechnoMine many of the PowerPoint presentations. read more »
Climax Molybdenum Mine
Wednesday, November 12, 2008
Kenwyn George was provided a tour of the tailings impoundments, water handling facilities and water treatment by Tavis D. Rogers, P.E., Senior engineer, of Climax Molybdenum on October 23, 2008. read more »
The Uranium Mill Tailings Remedial Action (UMTRA) Project
Wednesday, October 29, 2008
Here is the best summary of UMTRA I have come across: The Uranium Mill Tailings Radiation Control Act of 1978 gave the U.S. Department of Energy the responsibility of stabilizing, disposing, and controlling uranium mill tailings read more »
Geogrid-reinforced Tailings Covers
Monday, October 27, 2008
Here is a figure that shows how fill placed over the crust that may form on the top of a soft tailings deposit may respond to loading by the wheel of a vehicle trying to spread a new reclamation cover. read more »
IDRC 2005 Papers on Mine Closure
Friday, October 03, 2008
The International Development Research Center (IDRC) is a Canadian Crown corporation that "works in close collaboration with researchers from the developing world read more »
Bidim and Richards Bay
Thursday, July 31, 2008
I cannot find it on Google Earth. It stuck one kilometer out into the bay and was one kilometer wide, so it should still be visible. I refer to a phosphogypsum tailings impoundment I designed for Louis Luyt at Richards Bay in South Africa in the late 1970s. read more »
Tailings and Mine Waste ‘08
Wednesday, July 30, 2008
The program for the conference Tailings and Mine Waste ’08 gives preview of debates to come. The conference is slated for 19 to 22 October in Vail, Colorado.  read more »
In-Lake Tailings Disposal
Tuesday, June 17, 2008
A new report from the Globe and Mail states that sixteen Canadian mining companies have applied to dispose of mine tailings in lakes across the country. read more »
Gilt Edge Mine Superfund Site
Thursday, June 12, 2008
The proceedings of Tailings & Mine Waste ’03 contains papers on the Gilt Edge Mine. There is an abstract on the water balance of the site proposed for the ’08 conference. read more »
Pierina Gold Mine
Thursday, June 12, 2008
GoldSim to the rescue again: an abstract for the conference on Tailings & Mine Waste ’08 tells of a water balance model for the Pierina Gold Mine in Peru using GoldSim for the entire plant. read more »
Vail Tailings and Mine Waste Conference
Wednesday, June 11, 2008
If you are involved in tailings and mine waste, you must attend the conference on that topic being planned for October in Vail, Colorado. In addition to your basic interests, here are a few reasons why you should attend. read more »
Dry Tailings Beaches
Friday, May 30, 2008
Prediction of the Beach Profile of High Density Thickened Tailings From Rheological and Small Scale Trial Deposition Data is a paper and presentation by Gordon McPhail. read more »
Tailings & Mine Waste ‘08
Wednesday, May 28, 2008
Word has just come in that the folk organizing the conference Tailings and Mine Waste ‘08 have just met and extended the deadline for submission of abstracts to this conference until mid-June and they are asking that papers come in by mid-July. read more »
Salt Lake County Picks Committee Members to Probe Tailings
Wednesday, May 14, 2008
Salt Lake County has picked more than a dozen panelists to snoop into the seismic safety of Kennecott's tailings pile in northwest Magna. read more »
Oboni on Risk
Tuesday, April 22, 2008
Franco & Cesar Oboni, a father and son team, have just published a paperback with the title “Improving Sustainability through Reasonable Risk and Crisis Management”. read more »
Sullivan Mine Safety Guidelines
Tuesday, April 22, 2008
From the Proceedings of the Sixth Australian Workshop on Acid and Metalliferous Drainage, held in mid-April 2008 is a paper entitled "Sullivan Mine Fatalities Incident: Preliminary Technical Investigations and Findings". read more »
Tailings Electroosmosis
Tuesday, February 19, 2008
Electroosmosis involves application of an electric voltage across a porous material to increase the hydraulic gradient, thereby speeding up fluid flow and hopefully consolidation, strength gain, and reduced permeability.  read more »
Tailings and Mine Waste
Friday, February 08, 2008
The series of conferences on Tailings and Mine Waste started out at Colorado State University in 1978. For many years there was an annual conference and the important attended. read more »
Pebble Tailings
Thursday, January 10, 2008
From the April 2007 issue of Mining Engineering, here is a summary of the description of the proposed Pebble Mine’s proposed tailings impoundment. read more »
Tailings Due Diligence
Thursday, December 27, 2007
Here are some guidelines for a due diligence examination of a mine waste disposal facility. read more »
Earthquake Resources & Consultants
Friday, December 14, 2007
The mine facility most susceptible to earthquake damage is the tailings impoundment. Here are some links to sources of data on earthquakes and consultants who may be able to help you. read more »
MEND Publication
Tuesday, October 9, 2007
New from MEND is the report: Assessing the Long Term Performance of a Shallow Water Cover to Limit Oxidation of Reactive Tailings at Louvicourt Mine read more »
Dry Tailings
Tuesday, September 04, 2007
The Coeur d’Alene mine north of Juneau, Alaska is once again in the news. I summarize news reports from about 2005 until September 2, 2007. read more »
Los Pelambres and the El Mauro Tailings Dam
Monday, August 27, 2007
This is a tale that is still unfolding. The truth is well hidden by all concerned, for there are billions at stake. read more »
Solvent Extraction
Wednesday, August 15, 2007
In 1989 Elsevier published a book called Tailings Management: Problems and Solutions in the Mining Industry by Gordon M. Ritcey. Here is a brief review of the book read more »
Paste and Thickened Tailings
Monday, August 13, 2007
With increasing focus on efficient water use by mines, we read more and more of paste tailings as a way to reduce water consumption. I recently received two books on paste tailings from the Australian Centre for Geomechanics read more »
Kemess Tailings Impoundment
Thursday, June 14, 2007
My nomination of the best technical paper on the CIM conference proceedings CD: Design and construction evolution of the Kemess Mine tailings dam by T. Martin, G. Lysay, and S. Davidson. read more »
Paste Tailings
Tuesday, June 05, 2007
The March 2007 International Mining includes a supplement on Paste Tailings Management. This valuable supplement includes the following articles read more »
New Tailings Publications
Monday, May 14, 2007
Here are some books I found through the Tailings Good Practice site. Some are available for free download. Those on paste tailings must be ordered and paid for. read more »
Mine Accidents
Thursday, March 08, 2007
This is why accidents happen on mines and people die: ten silly little things happen; each is trivial and insignificant in and of itself read more »
Brazilian Dam Burst
Friday, March 02, 2007
The web was recently awash in the flood of news about the failure of a “bauxite mine tailings dam burst” in Brazilian read more »
Quality in Mining
Wednesday, February 28, 2007
Is there such a thing as QUALITY IN MINING? Has the mining industry ever practiced conventional quality programs? read more »
Mine Sand Piles
Thursday, February 22, 2007
My father regularly drove us out to those piles of golden sand, so soft and warm in the summer sun. And here we would spend happy hours climbing up the sand and sliding down, and climbing up and sliding down read more »
Kemess Mine Review
Friday, February 16, 2007
The news release is bland enough: “Northgate Minerals Corporation reports that Ministers of the Environment for Canada and British Columbia have amended the schedule read more »
Franklin Mining
Wednesday, February 14, 2007
A rare collection of technical and cost evaluation reports on a new mining project is available at the Franklin Mining, Inc site read more »
Solution Mining Irrigation
Wednesday, February 07, 2007
A well-produced brochure is more informative than a text book, and certainly more entertaining than most paper magazines stuffed with pale replications of marketing materials turned into fake-erudite articles. read more »
Rock Pile Transient Seepage
Friday, February 02, 2007
This is the story of a waste rock dump success/failure. The story is in a paper from BiTech Publishers and their premier magazine Geotechnical News. read more »
Carbon Fixation in Tailings
Tuesday, January 23, 2007
Regardless of your opinion of the reality and/or causes of climate change, I suspect these are the relevant questions for the mining industry read more »
Grouting Confined Areas
Friday, January 19, 2007
The closest thing I’ve come to grout is a summer spent emptying bags of cement into a huge hopper, which was eventually transported to off shore North Sea oil rigs to be used by Halliburton on “cement jobs”. read more »
Risk-Based Probabilistic Cover Performance
Monday, January 08, 2007
Little on the web impresses me; but this site does. I am not sure why. There is nothing new. There is nothing particularly profound. All the news and views are readily available elsewhere. read more »
Mining and the Twelve Days of Christmas
Thursday, December 28, 2006
A blog-like review of the 2006 mining industry, mining technology, and the twelve days of christmas, and prospects for mining in 2007.  read more »
Fort Knox Gold Mine Landfill
Tuesday, December 12, 2006
Landfills at mines seldom get much attention. The size and glory of the waste rock dump, the heap leach pad, and the tailings impoundment quickly overshadow the lowly landfill. read more »
Utah Mine Reclamation
Friday, December 08, 2006
This volume is the best primer on Mine Reclamation I have yet come across: The Practical Guide to Reclamation in Utah. It should be your first stop on a tour of mine reclamation reading, even if your mine is not in Utah. read more »
INEEL Disposal Facility
Wednesday, December 06, 2006
For all those interested in the design of waste disposal facilities, the volume on the design of a mixed waste disposal facility at the Idaho National Engineering and Environmental Laboratories (INEEL) is a must-read. read more »
BLM Mined Land Reclamation
Monday, December 04, 2006
A comprehensive manual on mine reclamation is probably a pipe dream. The topic is too large and multi-disciplinary to get all the information in one volume. read more »
Brazil Cover Design Manual
Friday, December 01, 2006
This manual is as good a summary of all the relevant theory and practice of unsaturated cover design as any I have come across. read more »
Colorado Mine Reclamation
Friday, December 01, 2006
A recent report (June 2006) makes fascinating reading and instructive reporting. I refer to the Reclamation Feasibility Report Henson Creek Watershed read more »
Malartic Project, Quebec
Tuesday, November 28, 2006
The performance of covers on tailings piles to limit oxygen migration to the acid generating materials beneath are the topic of an abstract in the latest CIM magazine. read more »
Mt Tolman
Thursday, November 23, 2006
The design of the tailings impoundment for the Mt Tolman molybdenum mine involved a 300-ft high rockfill embankment above which would rise a 600-ft high embankment of sands cyclones from the tailings. read more »
Meridian Gold
Thursday, November 23, 2006
A good story with a happy ending; a testimony to what can be achieved; congratulations. These positive thoughts came to mind when I saw this piece on the wire this morning. I quote: “Meridian Gold Inc is pleased to announce read more »
Zambian Processing
Thursday, November 23, 2006
This from the pages of the Times of Zambia: Large scale mining companies have invested US$1.4 billion in plant rehabilitation, expansion and in new technology in the last five years, President Mwanawasa has said.
 read more »
Omai
Thursday, November 09, 2006
We repeat verbatim this news report from Mineweb, lest you missed it. We have previously written about the failure of the tailings dam and it implications. read more »
Good Practice Mining Publications
Friday, November 03, 2006
The International Council on Mining & Metals (ICMM) website on Tailings: Good Practice continues to bring us easy access to view or purchase books newly posted/advertised on their site. Here are some read more »
Diamond Equipment Technology
Tuesday, October 31, 2006
Does equipment technology now threaten the diamond mining industry? Two news items raise this fear read more »
Glamis Review Report
Friday, October 20, 2006
A rare peek into the exclusive world of peer review of tailings dams. We hear so much about the need, and see so little of the implementation. read more »
Tailings Are Useful?
Monday, September 18, 2006
Why are tailings not used as construction material? It seems to me that tailings form a large body of known dimensions of uniformly sized particles that could be used for something. read more »
TailPro Announcement
Friday, September 8, 2006
At long last the announcement of a welcome event. Here is what is in the e-mail from Jonathan Engels, now in Perth: Thank you for your past interest in TailPro, the online resource designed to assist tailings related engineers read more »
New Tailings Site
Wednesday, September 6, 2006
A new, updated, or hitherto ignored site on tailings? Tailings.info is new in my view, although the site notes that it has been around a long time. I like it very much and hope they succeed and prosper. The site describes itself thus read more »
Geoengineer Website
Wednesday, August 30, 2006
I have previously written in this site about one of my favorite websites, namely www.geoengineer.org. Here is what I said almost a year ago read more »