What are the advantages & disadvantages of surface mining?
The pros of surface mining are that it has a lower financial cost and is a lot safer than underground mining because all mining operations take place above the surface. The cons are the hazards it presents to human health and the environment.
What are some advantages of subsurface mining compared to surface mining?
Subsurface mining offers more employment opportunities than surface mining would for the same volume of coal. Subsurface mining has less impact on the surrounding landscape than surface mining.. Coal companies have lower payroll costs because they need fewer miners. Mountaintop removal is less dangerous for miners.
What are some advantages of mining?
These benefits include low-cost, reliable electricity and the materials necessary to build our homes, schools, hospitals, roads, highways, bridges and airports.
What is surface mining used for?
Surface mining is used when the economics of removal of 'overburden' to access the coal deposit is viable. Generally, the coal must be fairly close to the surface, but as machines increase their capacity to move material, 'fairly close' is becoming deeper and deeper.
What are the advantages and disadvantages of surface mining and subsurface mining?
Advantages and Disadvantages Advantages : Safer than surface mining, faster than 60% of other mining in the U.S, less disruptive to the environment, leads to more minerals. Disadvantages : Costs more, harder to do than surface mining, takes a lot of time.
What are the advantages and disadvantages of open cut mining?
1.1 Features, technical and economic indicators of open pit development
| Advantages | Disadvantages |
|---|---|
| High production rate (essentially unlimited, although small surface mines also possible) | Limited by stripping ratio |
| Lowest cost along with open cast mining | High capital investment associated with large equipment |
•Feb 17, 2021
What is the difference between surface mining and subsurface mining?
Surface mining removes ore deposits that are close to the surface, and subsurface mining removes minerals that are deep underground. While mineral use is very important to us, there are also many environmental impacts, such as erosion, air and water pollution, land destruction and harm to mine workers.
Is surface mining good for the environment?
Surface mining (another name for "strip mining") can severely erode the soil or reduce its fertility; pollute waters or drain underground water reserves; scar or altar the landscape; damage roads, homes, and other structures; and destroy wildlife.
What are three benefits of mining?
Mined materials are needed to construct roads and hospitals, to build automobiles and houses, to make computers and satellites, to generate electricity, and to provide the many other goods and services that consumers enjoy. In addition, mining is economically important to producing regions and countries.
What are 2 positive effects of mining?
In terms of positive impacts, mining is often a source of local employment and may contribute to local and regional economies (18, 19). Remediation of the potential environmental impacts, for example through water treatment and ecological restoration, can have positive net effects on environmental systems (20).
What is surface mining answer?
surface mining, method of extracting minerals near the surface of the Earth. The three most common types of surface mining are open-pit mining, strip mining, and quarrying. See also mining and coal mining.
How does surface mining occur?
Surface mining is a method of mining that involves removing the soil and the overlying rock on top of the mineral deposit. This method of mining gained popularity since the start of the 20th century, especially in North America where the majority of surface mining occurs.
What are the types of surface mining?
There are 5 main types of surface mining, which are used in various degrees and for different resources. These mining categories are: strip mining, open-pit mining, mountaintop removal, dredging and high wall mining.
What is the advantage of open cut mining?
This method has a high recovery rate when compared to the underground, as 90 percent of mineral deposits are recovered. Overall when compared to other methods, open-cut is much safer.
Which of the following is an advantage of open-pit mining?
Advantages of open-pit mining include: Powerful trucks and shovels can be used to move large volumes of rock. Equipment not restricted by the size of the opening you are working in. Faster production. Lower cost to mine means lower grades of ore are economic to mine.
Which is better surface or subsurface mining?
Surface mining is often preferred to subsurface mining by companies in the industry because it is less expensive, there are fewer complications with electricity and water, and it is safer. However, surface mining can be more environmentally-damaging than subsurface mining.
How does surface mining affect an ecosystem?
However, even with current regulations, surface mining can affect fish and aquatic resources through erosion and sedimentation, dewatering of wetlands, diverting and channelizing streams, and contaminating surface water and aquifers with toxic chemicals.
Does surface mining cause noise pollution?
Noise in mining can come from a whole host of sources across a site, making the hazard difficult to manage. Whether the culprit be processing plants, machinery, traffic, blasting, or otherwise, a mine site is an incessant producer of noise pollution.
What are the advantages of mining gold?
Gold mining has a role to play in the development of human resources (training) and infrastructure such as schools, colleges, clinics, roads and housing. Gold export earnings have a positive impact on the balance of payments, foreign reserves, monetary policy and on the level of business activity in the country.
What are the advantages of mining in the Philippines?
Mining, likewise, contributes to the country's foreign-exchange earnings through exports. Furthermore, the industry provides additional revenues for the government through taxes and fees paid on mining and other related activities.
What are the advantages of gold mining?
Gold mining has a role to play in the development of human resources (training) and infrastructure such as schools, colleges, clinics, roads and housing. Gold export earnings have a positive impact on the balance of payments, foreign reserves, monetary policy and on the level of business activity in the country.
What is surface mining system?
Surface mining is a form of mining in which the soil and the rock covering the mineral deposits are removed. It is the other way of underground mining, in which the overlying rock is left behind, and the required mineral deposits are removed through shafts or tunnels.
What is surface mining of coal?
Surface mining is used when the coal seam is near the surface. It recovers a higher proportion of the coal deposit than underground mining as all coal seams are exploited – 90% or more of the coal can be recovered.
What is Area surface mining?
Surface mining refers to the removal of the terrain surface to access minerals underneath. In particular, surface mining is used to retrieve sand, gravel, stones, coal, iron and other metals.
How is surface mining done?
Surface mining is a form of mining in which the soil and the rock covering the mineral deposits are removed. It is the other way of underground mining, in which the overlying rock is left behind, and the required mineral deposits are removed through shafts or tunnels.
What is the advantage and disadvantage of open-pit mining?
1.1 Features, technical and economic indicators of open pit development
| Advantages | Disadvantages |
|---|---|
| High production rate (essentially unlimited, although small surface mines also possible) | Limited by stripping ratio |
| Lowest cost along with open cast mining | High capital investment associated with large equipment |
•Feb 17, 2021
What are the advantages of shaft mining?
So what about the benefits?
- Shaft mines can extended the deepest. …
- One of the easiest ways to obtain coal and other materials buried deep underground out of reach for surface mining.
- As seen in the area, mining creates many jobs.It also brings people to places with lower populations.
How is subsurface mining better for the environment?
Advantages : Safer than surface mining, faster than 60% of other mining in the U.S, less disruptive to the environment, leads to more minerals.
How does surface mining impact the water?
However, even with current regulations, surface mining can affect fish and aquatic resources through erosion and sedimentation, dewatering of wetlands, diverting and channelizing streams, and contaminating surface water and aquifers with toxic chemicals.
How does surface mining affect the environment?
Surface mining (another name for "strip mining") can severely erode the soil or reduce its fertility; pollute waters or drain underground water reserves; scar or altar the landscape; damage roads, homes, and other structures; and destroy wildlife.