disadvantages of surface mining

Surface mines offer advantages and disadvantages when compared to underground mining. Amongst the advantages are that it is cheaper, can recover more of the resource (usually up to within the mining excavation), is safer and can use larger-scale mining equipment offering higher production rates.

Section 2 describes surface mining equipment with particular focus on relatively large machines such as bucket wheel excavators, large shovels and SA N draglines. U 1. Surface Mining Methods After a mineral deposit has been discovered, delineated, and evaluated, the most appropriate mining method is selected based on technical, economic, and ...

May 25, 2012· Disadvantages: very dangerous. Subsurface mining makes you go down dirty places and pick up stuff in the dark with no air. Expensive for materials and safety equipment. » More detailed. What are disadvantages of underground mining? – …. Mar 19, 2008 · Best Answer: loss of life. expensive process. surface subsidence. abandoned shafts ...

Apr 25, 2017· Mining is the extraction of minerals and other geological materials of economic value from deposits on the Earth. Mining adversely affects the environment by inducing loss of biodiversity, soil erosion, and contamination of surface water, groundwater, and soil. Mining can also trigger the formation of sinkholes.

Surface mining refers to the mining technique where the overlying layer of soil and rock is removed, followed by the recovery or excavation of the underlying minerals. Get Price What are the advantages and disadvantages of …

Oct 23, 2013· Environmental Impacts. - Acid drainage from the equipment. - Toxic water end up in groundwater. - Abandoned mining sites can continue polluting groundwater after the mining has ceased. -Water must be pumped out of the mine during the mining process. After the mine is abandoned, the pumping stops, and the water floods the mine.

Mining is an activity to take out precious natural resource to satisfy humans unending demand. This activity is carried out extensively and has caused major imbalance in our ecology. There are several other industries dependent on mining, hence an...

Surface mines offer advantages and disadvantages when compared to underground mining. Amongst the advantages are that it is cheaper, can recover more of the resource (usually up to within the mining excavation), is safer and can use larger-scale mining equipment offering higher production rates.

Mar 25, 2020· Advantages of surface mining include economic and financial benefits for miners and communities and a safer alternative to pit mining, but its disadvantages include environmental impacts, such as erosion and contamination. Surface mining, also called strip mining, delivers economically vital supplies of coal, which powers transportation and ...

Jun 02, 2020· Advantages of surface mining include economic and financial benefits for miners and communities and a safer alternative to pit mining, but its disadvantages include environmental impacts, such as erosion and contamination.

Surface mining is the most common type of mining process and uses bucket excavators, giant machine like bulldozers, and large trucks to remove the topsoil and rocks to expose the large beds of coal. After they have finished mining the coal they fill back in the dirt and rocks and replant the area so that it can be reused for things like ...

Mar 15, 2013· The disadvantages of this is that the origianal mountain is not restored after this. This is also very controversial. the advantages to mountain top removal is it is efficient. mountiain top removal Strip mining is the final method of surface mining. It is used when coal is near the surface or the overburden is unstable. the advantage is that ...

Apr 10, 2013· Disadvantages:Surface mining is very dangerous.Advantages:Subsurface mining is saferSubsurface mining is cheaper,Subsurface mining is faster60% of the mining in the US is Subsurface mining.

Aug 29, 2015· Surface mining refers to a category of mining where soil and rock overlying the mineral deposit are removed. There are several types of surface mining, and strip mining counts as one of them. In strip mining, a thin layer of material known as an overburden is removed so that access is made to the minerals buried underneath. This kind of mining ...

The disadvantages of surface mining are: That it destroys the landscape and environment;View more. Read more. advantages and disadvantages of surface mining equipment. What are the advantages and disadvantages of surface mining? The advantages of surface mining are: It is cheaper to extract the ore or metal than underground mining ...

Advantages & Disadvantages of Mining. Mining is quite important to extract large amounts of precious metals and other natural resources out of the ground. However, mining also implies many serious problems. All pros and cons of mining are examined in the following. Audio Lesson.

Jul 26, 2015· Strip mining is a form of resource collection that involves dirt removal from a very large area to sift through it. Instead of working underground, a pit is created deep in the ground and all work is accomplished on the surface. Here are the pros and cons of strip mining to consider. Strip Mining Pros to Consider . 1. It is very cost effective.

Dec 08, 2018· Mining involves the extraction of valuable minerals from the earth surface. Mining can either be surface mining or sub-surface (underground) mining. Mining not only beneficial to the surrounding community and public in general, but it can also pose a …

Mar 25, 2020· Opencast mining, also known as surface mining or strip mining, has disadvantages that include disturbance of the environment and local ecosystems, exposure of radioactive elements and contamination of freshwater sources. The use of heavy machinery and blasting techniques also create environmental pollution.

advantages and disadvantages of surface mining equipment. advantages and disadvantages of surface mining equipment. This page is provide professional advantages and ... advantage and disadvantage of open pit mining. Read more

2. Surface Mining Machinery Glossary Bibliography Biographical Sketches Summary This chapter deals with surface mining. Section 1 presents an overview of surface mining methods and practices as commonly employe d in modern surface mining operations. The description includes a comparison of the advantages and disadvantages of surface and

The surface miners firstly were used for the construction purposes like milling of asphalt. The idea that this technology can be used in the surface mining came to exist in the mid-70s with the development of a cost effective and new open cast method called surface mining technology.

Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels.. Surface mining began in the mid-16th century [dubious ...

Surface mining can be accomplished by the following main methods: Open-pit Mining: Removing ore to leave a crater. Quarrying: An open-pit mine for construction materials. Strip Mining: Ore is removed in parallel strips. Mountaintop Removal: Top of a mountain is blasted to remove deep ore. Dredging: Ore is removed from a river bottom. The main methods of underground mining are:

Disadvantages of open pit mining. One of the main disadvantages of this type of mining operation is the environmental impact it causes. Since cyanide, mercury and sulfuric acid are used to remove the wastewater, groundwater and air are contaminated as toxic dust . This is absorbed by animals and plants.

Open Pit Mining Pros & Cons | eHow. Open Pit Mining Pros & Cons. Open pit mining -- or strip mining -- is an extraction process for ore or fossil fuels that takes place at the surface of a mining site.

For each of the mining methods, explain the reason of its use and give an advantage and disadvantage. a Subsurface mining. b Surface mining. Get Price; What Are Some Of The Advantages And Disadvantages. The advantages and disadvantages of mining can be determined based on facts uncovered by scientists and by personal opinions.

Advantages of surface mining include economic and financial benefits for miners and communities and a safer alternative to pit mining, but its disadvantages include environmental impacts, such as erosion and contamination. Surface mining, also cal...

Dec 08, 2018· Mining involves the extraction of valuable minerals from the earth surface. Mining can either be surface mining or sub-surface (underground) mining. Mining not only beneficial to the surrounding community and public in general, but it can also pose a lot of risks to the surrounding community. Let's look at the pros and cons of mining in an area.

the disadvantages effects of open pit mining what are the disadvantages of opencast mining? Opencast mining, also known as surface mining or strip mining, has disadvantages that include disturbance of the environment and local ecosystems, exposure of radioactive elements and contamination of freshwater sources.