The conditions necessary for production of quarry deposits
besides external factors of the skin and the coefficient of rock, it is necessary to consider the following production conditions (Crushers):
1. the deposits in the vicinity of the sub-transmission lines and the location of the branch. In this part of the quarry should be clarified by the possible routes from the product. By exploring the quarry, in any case, you must explain the evolution of road traffic in the period of a year, artificial constructs of state, the need for the construction of the new extension and measures to improve existing roads (Sales Crushers mobile).
2. The possibility of construction throughout the year, on the side of the river or in the vicinity of alluvial deposits, we must consider that if the mine is at risk when flood, this is particularly important.
3. The preparatory work before mineral deposits, the possibility of using local trees in the following construction. Read the rest of this entry »
- As a direct or indirect impact on the environment.
- According to short or long term
- As reversible or irreversible (human scale)
- According to local or external
- Avoid or inevitable
Moreover, according to environmental aspects that change can be
- Actions that change the land use
- Actions that involve the emission of pollutants (solids, liquids, gases and other: noise, air wave)
- Actions that involve exploitation of resources (water)
- Actions that involve the modification of the landscape (almost)
- Actions that affect infrastructure
- Actions that change the social, economic and cultural (economic impact). Read the rest of this entry »
This leads us to define the concept of environmental impact of an activity: the difference in the environment between the time the activity begins, the time the activity takes place, and above all, the moment of completion.
These questions, which a few years ago were not perceived as a risk factor for the future of humanity, now viewed with great concern that is not always justified, since man is altering the environment since it has been able to do so, but certainly abuses in this field have led to growing awareness of the need to regulate these impacts. Either way, it should also be clear that the man needs the mineral resources today, and the need in the future. Another point to note is that mining is infinitely less powerful than other industrial activities, such as the development of civil works (visual impact, modifying the original media) and agriculture (massive use of chemical pesticides, fertilizers).
Thus, at present there are very strict rules about the impact that a mine can produce, including regulation of the composition of the liquid waste, emissions of dust, noise, landscape restoration, and so on., Which indeed often very challenging to meet the high economic cost, but undoubtedly have to be made to carry out the operation. Read the rest of this entry »
* Salting, drying and water shortages because of the enormous quantities of fresh water required for the extraction process
* Release and migration of heavy metals in the ecosystem
* Displacement of thousands of tons of ore causes sedimentation in rivers, vulnerability to wind and water erosion
* Environmental liabilities after the exploitation and destruction of the original ecosystem of the site
* Migration of highly toxic cyanide in groundwater and surface water and ecosystem
* Drainage acid, which is a major threat particularly in the extraction of sulfides.
Harmful effects of cyanide
Current technology for gold mining to separate uses cyanide gold from the non-valuable minerals. Cyanide is a highly toxic, the lethal dose for humans is 50-200 mg. However, on reaching the environment cyanide, heavy metals are linked to cyanide in the long run are the biggest problem. Cyanide breaks down relatively quickly, however heavy metals remain forever in the environment.
Acid drainage is a serious problem in many metal mines, since metals such as gold, copper, silver and molybdenum are often associated with sulfides. By not controlling acid mine drainage, filter streams, rivers and groundwater. Acid water and heavy metals are lethal to fish, animals and plants and can still cause damage to the environment indefinitely after mine closure.
Opencast mining and the original ecosystem Read the rest of this entry »
Over the past century, world population quadrupled. This huge burden on the Earth, it is displayed only on climate change but also the scarcity of resources and energy. The great geopolitical power, aware of the increasing difficulty of access to natural resources, aimed at ensuring its supply of energy and materials. The growth in prices due to resource and energy shortages – such as minerals, metals, oil and gaz – produce geopolitical turmoil and a new boom in the extractive industries sector.
Between 1999 and 2006 the average price of crude metals trebled. Since 2005 the price of uranium has increased sixfold and the price of copper has doubled. Never before have large mining consortiums have had a very promising future.
During the last five – ten years, there have been almost all the conditions for rapid (re) territorial and economic colonization of the South, or that today is called the “second colonization” or “second gold rush “. Now, if economic entities, especially multinational corporations, have replaced the Western nation-states in their role as colonizers.
Globalization is the phenomenon of global integration faster and faster crecienda economic interactions, technological innovations, cultural influence and political structures. The neoliberal economic model appeals to states in the South to open their borders to direct investments by Western companies, often with the discourse of “free trade fair competition” and the idea that only foreign capital, technology and economy oriented export can help you out of the depression. Read the rest of this entry »
Water Management Director of Fundación Chile, Ulrike Broschek ensures that new technology and management systems of the sources, are the only way to counter water scarcity, as this is a problem which affects many industries.
It also indicates that despite that though the problem is known, have not yet taken the essential steps in finding solutions in a concrete and applicable.
So the specialist believes it is necessary to share experiences at national and international levels. This technological breakthrough and is seen in industries such as mining where to reduce water loss by evaporation and reuse wastewater, or to generate new sources of water through desalination (seawater) and transportation of the resource from south to north, where there is less water. He added that implementations are added to the agriculture sector has been doing, using techniques such as drip irrigation.
Globally one of the countries that use the technology in its ecological systems is the land of Israel, it reuses 75% of the country’s sewage and with them, recharge aquifers.
This is a clear example of what it is doing in Chile through the water footprint of companies, which indicates the volume of water needed and processes to reduce, firms have begun to recover their waters.
Another case is the project of BHP Billiton, at the site of Cerro Colorado, to prevent water loss by evaporation, which will optimize every drop of water to deal in the process.
The two sides of the coin of workers
Much controversy has been generated after it was known that La Escondida bonus offer as the end of conflict to their workers the sum of 23 million pesos, as it compares the situation to the precariousness of wages in the vast majority of Chileans and these expressed great concern about the future of the mining industry by high salaries speculation in this sector.
These arguments are absurd as the president of the Committee for the Defense of Copper, Julian Alcayaga, since the larger mining companies only spend 6% of their income on paying their employees and therefore they offer solutions through collective bargaining with In order to avoid conflicts next.
The hidden has chosen to advance its process and approved the proposal, avoiding the negotiation would be agreed for the month of July and immediately establishes a collective contract for 4 years.
The union president explained that the controversy over the amount of 23 million only pay once and it would not mean a real wage improvement in their income received monthly, as these are lower than what people have as an idea.
This leader also stressed: “the conflict term bonus for us is not the main thing, nor is it for workers because it is a one-time payment for a period of four years, for us we have to rescue from this new proposal and what we demand of the company is to improve workers’ monthly income. Minera Escondida not pay the best salaries in the mining industry, as people think. However, these salaries are enhanced by our bond variables, the production bonus and bonus management, that is what really says worker’s salary. “
To grow professionally within the mining sector it is important that you constantly capacites, access to a wide variety of courses and follows a course in Mining to support your knowledge. To be a successful professional, whatever our race we need to constantly upgrade our profession. The importance of a good education will strengthen our professional success. The success of the mining sector today is bringing many benefits for those professionals. At present there is a great demand for highly skilled mining professionals, is why the importance of obtaining diplomas, specializations and masters in mining. The world offers many training options but it is important to opt for those skilled in mining training. Currently the Chamber of Mines of Peru offers 61 Diploma in Mining, as well as a Masters in Mining program very complete, has this is added a Mining Specialization Program Free Courses. If you want to achieve professional success in the global mining sector, should start to strengthen your knowledge and strengthen your studies at the Chamber of Mines of Peru.