Good morning everyone, hope you’re all well, as you can see from today’s pictures I’ve been out in daylight....don’t worry, nobody was harmed....these images are all taken at the Mount Wellington mine Tailings dam which is an area within the Wheal Maid valley that was once used by Mount Wellington Mine to hold waste the from the mine’s mill.
The waste was stored here because at the time the technology did not exist to treat the waste, the idea being that when technology did catch up the waste could be safely treated and disposed of.
The water within the Tailings as you can see is quite a vivid colour as is the soil around the dam this is caused by minerals that are held within the waste, the water even today is still heavily contaminated with such minerals and elements as Arsenic, Cadmium, Chromium, Copper, Zinc, Lead and Nickel, this makes for a rather unpleasant concoction which is best avoided.....despite that I simply couldn’t resist the colours and the reflections and of course the opportunity to play with my filter kit.
These three images were all taken using my Nikon D3200 dslr along with the a NiSi 4 stop soft grad filter and the NiSi landscape CPL
Last week, Sam conducted Tailings Treatment and Water Reticulation practical assessments.
These photos show:
1. Learners aligning a tailings deposition line and how the resultant overflow water, flows into a new recycling dam.
2. One of the learners also demonstrates the concept of 'water seepage' through the tailings walls, used to transfer water naturally from slimes dams to the water collection dam.
3. Demonstration of the decanted supernatant water ready to be recycled to the Plant.
4. The starting of a tailings transfer pump to balance the water between two dams.
5. A learner describing the importance of land rehabilitation by putting the top-soil back onto the tailings and then planting the indigenous plants.
We are so glad that these learners are involved in this as the tailings disposal facility is the link back to the environment. We believe that it is important for all operators to have a real appreciation of how the mining process impacts on the environment. On a lot of plants these days, this section is managed by contractors and so the tangible sense of how we are affecting nature is never felt.
97% of Canada's oil reserves are located in the Athabasca Tar Sands. Large volumes of byproducts of bitumen extraction (semi-solid petroleum) are generated and pumped here into massive tailings ponds, covering an area of nearly 77 km².
In this image, braided patterns of black bitumen residue are set against a background of white silt and sand on the edge of a tar pond. Image captured by Louis Helbig.
A UN report stated that countries have stalled on global warming for so long that the situation is now critical and only an intensive worldwide push over the next 15 years could stave off potentially disastrous climatic changes later in the century. If counties continue to stall on stricter carbon emissions legislation, trillions of dollars will be invested over the coming years into inefficient infrastructure dependent on fossil fuels (buildings, power plants, cars). The resulting emissions path would be near impossible to alter in time to avoid breaking the emissions limit for a safe climate. "The widespread perception that a scarcity of fossil fuels will lead to development of alternative energy in time to salvage a safe climate is wrong." says Ottmar Edenhofer, German economist and co-chairman of the UN committee. This is because higher prices and improved drilling technology are generating an intensified hunt for new fossil energy.
For the sake of a liveable climate in the near future, policies that will leave most of the remaining coal, oil and natural gas in the ground must be agreed on soon.
On 5 November 2015, two dams collapsed at an iron ore mine in southeastern Brazil. Local news outlets estimated ~62million cubic meters of toxic waste water (similar to the red mud) was released, wiping out the village of Bento Rodrigues, killing 17 people. Because of this pollution, more than half a million people did not have access to clean drinking or irrigation water for an extended time period. Within two weeks of the rupture the contaminated water had spread along 644km of the Doce River and entered the Atlantic Ocean, killing large numbers of plants and animals along the way. Officials are concerned that the toxins will continue to threaten the Comboios Nature Reserve, a protected area for the endangered leatherback turtle.
Image source: @digitalglobe & @dailyoverview
The feasibility of
re-use/recycling of mine tailings - is it possible?
We’re at the Women in Mining (UK) and the Institute of Materials, Minerals and Mining (IOM3) joint event in London, where Sue Struthers of Skapa Mining Services is presenting her PhD findings on the matter. #miningoilandgas#mining#recycle#reuse#tailings#waste#innovation
I have conflicted feelings about this photo. It’s the Elsburg Tailing Complex, photographed on approach to OR Tambo Airport in Johannesburg. On one hand, it stands as a stark indicator of how human activity can scar and disfigure the landscape. But there’s also a certain primitive beauty about it too - the patterns and textures. Just don’t scratch the surface or think too hard about what lies beneath this crust. #landscape#humanactivity#scarredlandscape#tailings#primitivebeauty#mining#extractiveindustries
back to the land -tailings historic mine waste (arsenic, lead, mercury, et al.) This is my body punched out of the ground in a 1930’s historic mine waste site in Western Canada. I think this place is strangely beautiful and as a person born in Canada, I identify with the all of its landscape. Many rural Canadians, like me, were raised on a back-to-the-land ethos, all the while we also lived off of the forest and ground being harvested and unearthed. I guess that is the duality that I am trying to understand. I’m not the authority of such, but my mind wanders to the future and asks...are we turning back to the land for answers or are we turning our back to the land for answers. Nevertheless, I have a hard time thinking that this one will make the 2018 postcard selection.