cons for open pit mining

Open Pit Mining

8231 Open pit mining Open pit mining refers to mining directly on the ground surface thereby producing an open pit This method is practical and cost-effective when the uranium ore is located near the surface eg within 100 m Underground mining and ISL methods may be considered for sites that have uranium ores at deeper depths...

Open Pit Mining Pros And Cons

Open Pit Mining Pros And Cons 2010-5-20Open-pit mining also called strip-mining Pros -- Its easy and cheap for the mining companies which does translate into a lower cost to you the consumer Con -- Its devastating to the environment not just in the physical removal of what is sometimes a miles-wide thousand-foot-deep hole in the ground but also the use of acid washes on...

Surface Mining Methods and Equipment

The higher productivity for open pit mining equipment also lowers costs The necessary underground equipment for maintaining productivity is more expensive on a unit basis capacity than corresponding open pit equipment Furthermore the large production scale and share number of open pit mines have provided the opportunity for manufacturing...

Open Pit Mining by Madison Bangs

Opinion Open Pit Mining In my opinion I think Open Pit Mining should stop It causes a lot of harm to the environment and the communities that live nearby This type of mining pollutes water air and ruins landscape It also harms people and animals that live relatively close to...

Argentineans Oppose Open

Jan 29 2021 0183 32 On Jan 26 citizens published a letter outlining their social scientific and environmental arguments for rejecting the PL128/20 project which seeks to initiate open-pit mining activities in the Chubut plateau s north-central region...

What Are the Disadvantages of Opencast Mining

Mar 25 2020 0183 32 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 sourc The use of heavy machinery and blasting techniques also create environmental pollution...

Pros and Cons of Strip Mining APECSECorg

Feb 25 2015 0183 32 The Cons of Strip Mining 1 Bad For The Environment Strip mining can have unwanted effects on the natural ecosystem of the area where the mining is taking place Plant and animal life is often killed off taking years to regenerate In addition to the death of plants and animals the land also experiences increased susceptibility to erosion...

The Advantages of Open Pit Mining Sciencing

Mar 13 2018 0183 32 Open pit mining does offer some advantages over traditional deep shaft mining Pit mining is more cost effective than shaft mining because more ore can be extracted and more quickly The working conditions are safer for the miners because there is no risk of cave in or toxic gas Open pit mining is the preferred...

PDF COST ESTIMATION FOR OPEN PIT MINES TACKLING COST

This article presents cost models for open pit mines which takes into account cost uncertainty In this paper cost uncertainty is considered as cost of under production and cost of over production...

Risk assessment of occupational groups working in open pit

Jan 01 2017 0183 32 In open-pit mining there is a wide range of possibilities of encountering hazardous situations due to differences among various occupational groups in terms of working conditions The aim of this study was to assess the industrial accidents which happened in TCE Garp Lignite Company between 2005 and 2010 and to analyze the risks using the...

Top 10 deep open

The open-pit mine produced 443 000t of copper in 2011 Feasibility study is underway to switch to underground production at Chuquicamata by the end of 2018 The ore reserve under the existing pit is estimated to be 17 billion tonnes grading at 07 copper The underground development project is estimated to cost more than 4bn...

Basics of an open pit mine

Open pit mines can be used in coal mining and they are used extensively in hard rock mining for ores such as metal ores copper gold iron aluminum and many minerals In a open pit coal mine the pit bottom would be the bottom mined coal seam elevation since it is usually feasible to extract multiple seams when surface mining coal...

pros and cons of open pit mining

Open Pit Mining Pros Cons Sciencing Open-pit mining is much safer than shaft mining In underground mining the threat of a cave-in or release of toxic gas is a constant concern When shaft mining was the most common method of ore extraction thousands died in cave-ins gas events and accidents involving equipment...

Open Pit Mining Disadvantages Mineral Production

Disadvantages of open pit mining However disadvantages when compared to Underground Mining also exist Very large amounts of waste rock are mined This creates costs as well as environmental issues with waste rock disposal Major disruption of surface pit footprint waste dumps High visual impact especially strip mining...

What are the advantages and disadvantages of underground

Feb 13 2016 0183 32 Shallow mineral or coal deposits can be economically mined by open-pit or strip min However with deeper mineral or coal deposits it becomes very costly to remove a great deal of overburden in these kinds of settings So in these cases underground mining is more cost effective The downside is that human health and safety are at greater...

What are the pros and cons of subsurface mining

Advantages of underground mining less surface disturbance less environmental disturbance less waste mined per tonne of ore ability to mine resources that are not economic as a surface mine cheaper to set up mine development for deep ore depo...

Open Pit Mining Pros and Cons

Jun 18 2020 0183 32 The article Open Pit Mining Pros and Cons is available on dust-monitoring-equipment 0 Comments Leave a Reply Author Chris Loans has a Chemical Engineering degree and brings specialist knowledge of process engineering chemical stress and systems optimisation as well as computer programming His background in the pulp and acid...

What are the pros and cons of open pit mining THANK YOU

May 20 2010 0183 32 Open-pit mining also called strip-mining Pros -- It s easy and cheap for the mining companies which does translate into a lower cost to you the consumer Con -- It s devastating to the environment not just in the physical removal of what is sometimes a miles-wide thousand-foot-deep hole in the ground but also the use of acid washes on...

ENVIRONMENT THE PROS AND CONS OF MINING

Aug 09 2018 0183 32 Open-pit mining may cheaper when compared to other methods but it is not environmentally-sound Open-pit mining clears the vegetation covering the deposits exposing the soil and permanently changing the landscape and land use said Dr DaƱo who was then the assistant director of the Ecosystems Research and Development Bureau ERDB of...

What are the cons of open pit mining Yahoo Answers

Mar 01 2008 0183 32 Produces a lot of waste since not all the material extracted is actually useful but they have to take it out the way Let s say you have a copper mine You have copper mineral layers and rock layers After you get the copper mineral layer you have to get the rocks out of the way to get to the next copper mineral layer deeper inside the ground...

Petition Stop Open

Open-pit mining is one of the most destructive forms of mining with terrible long-term consequenc If allowed to be done around the Rockies many harmful effects will happen as a result These include the destruction of habitat for iconic Albertan species such as the Grizzly Bear possible contamination of the water in local waterways we use...

Reading Open

Open-pit mining or open-cast mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow This form of mining differs from extractive methods that require tunneling into the earth such as long wall mining Open-pit mines are used when deposits of commercially useful minerals or rocks are found near the surface that is...

What Are the Disadvantages of Mining

May 27 2020 0183 32 Mining especially open pit mining destroys land that can be used for farming houses and other human purposes often permanently Entire mountains and rivers can be destroyed Loss of soil and deep underground excavation can also make land unstable and collapse Destruction of Animal Habitats Mining also has disadvantages for plants and...

Alberta rescinds decades

Alberta is cancelling a policy that had been in place since 1976 prohibiting open-pit coal mining in wide swaths of land throughout the western side of the province Matthew Brown/Associated...

Open Pit Mining Pros Cons Sciencing

Jun 25 2018 0183 32 Open-pit mining is much safer than shaft mining In underground mining the threat of a cave-in or release of toxic gas is a constant concern When shaft mining was the most common method of ore extraction thousands died in cave-ins gas events and accidents involving equipment In 1907 alone more than 3 200 deaths related to mining occurred...

Environmental Risks of Mining

Open pit mining where material is excavated from an open pit is one of the most common forms of mining for strategic minerals This type of mining is particularly damaging to the environment because strategic minerals are often only available in small concentrations which increases the amount of ore needed to be mined...

Can we mitigate environmental impacts from mining

Material adapted from Hudson TL Fox FD and Plumlee GS 1999 Metal Mining and the Environment p 11 41-46 Published by the American Geosciences Institute Environmental Awareness Seri Click here to download the full handbook The major potential environmental impacts associated with mining and associated mineral processing operations are related to erosion-prone...

Open pit mining pros cons

Jul 14 2020 0183 32 Open-pit mining is a type of mineral or rock extraction that does not necessitate tunnelling into the earth When a desired mineral or rock is near the surface companies typically opt for open-pit mining due to its lower costs and increased efficiency...

Pros and Cons of Mining

Jun 04 2019 0183 32 Mining is a process of extraction of valuable minerals or other geological minerals from the surface of the earth Surface mining is quite common in practice these days Both surface mining as well as underground mining has its own benefits as well as consequences to the surroundings Some pros and cons of mining are...

Open Pit Mining Techniques Surface Mines Rock or Mineral

Open-pit Mining Open-pit mining also known as opencast mining open-cut mining and strip mining means a process of digging out rock or minerals from the earth by their elimination from an open pit or borrow The word is used to distinguish this type of mining from...