dealing with waste material in open cast coal mines

Dragline excavator - Wikipedia Page 725 dragline at Turkish Coal Association - Yenikoy Open Pit Coal Mine, Milas A dragline excavator is a piece of heavy equipment used in civil engineering and Surface mining Draglines fall into two broad categories: those that are based on standard, lifting cranes, and the ,
Mining terms explained: A to Z – Anglo American an underground coal mine that is accessed above water level These are usually situated on the slope of a hill , In mining it’s used to separate valuable mineral or metal from waste material making making it gather on the surface of a ‘froth’ layer , Muck – in open pit mining, muck is the ore that has been broken into pieces by .
Environmental Risks of Mining - Massachusetts Institute of , Open pit 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
What is mine waste - answers Ann Broman Fisher has written: 'Coal mine water pollution legal and regulatory issues' -- subject(s): Coal mine waste, Coal mines and mining, Environmental aspects of Coal mines and mining, Law .
The economics of extended pre-strip stripping common method used to mine coal in Australia Pre-strip by definition is the removal of any waste material not considered to be valuable In surface coal mines, pre-strip often refers to the initial material that is removed to facilitate another digging process and is distinctly different from subsequent
Underground and Surface Mines - Planéte Énergies Underground and Surface Mines Coal was the fuel that stoked the Industrial Revolution in the 19 th century Extracting coal from underground or open-pit mines continues to be a ,
Background for NEPA Reviewers: Non-Coal Mining , EPA/530//R-95/043 NTIS/PB96/109/103 T ECHNICAL D OCUMENT BACKGROUND FOR NEPA REVIEWERS: NON-COAL MINING OPERATIONS December 1994 ,
Economic boost as Russia's largest coal mine opened in Siberia Economic boost as Russia's largest coal mine opened in Siberia , The open-cast mine has met with stiff opposition from local residents concerned about the potential impact on pollution Some fear drainage systems will be impacted with a threat to water supplies and fish life
Basics of an open pit mine - Mine EngineerCom The mineral or waste is removed in successive layers, each of which is a bench Several benches may be in operation simultaneously in different parts of, and at different elevations in the 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 .
Open-pit mining - SourceWatch Jun 26, 2017· Explosives like dynamite are used when miners want to remove large blocks of materials Open-pit mines are typically enlarged until either the coal is exhausted, or an increasing ratio of overburden makes further mining uneconomic When this occurs, the exhausted mines are sometimes converted to landfills for disposal of solid wast
Stripping Ratios: What are They and Why are They Important? Stripping Ratios: What are They and Why are They Important? , is an important measurement related to the open-pit mining process It represents the amount of waste material, also known as .
Mining Cost Service: Free Data for Mine Cost Estimates , Mining Equipment Fleet - 10,000 tonne per day (ore + waste) open pit mine The equipment listed here represents a typical suite of equipment for a 10,000 tonne per day (5,000 tpd ore + 5,000 tpd waste) surface mine with a 3,500 ft ore haul and a 1,800 ft waste haul ,
dynamic models for open cast coal mining pdf - Mine Equipments impact analysis of open cast coal mines on land use - International , coal mining activities on the Land use have been highlighted , approach for evaluating surface mining processes and their dynamics at a , This paper discusses the land use land cover change due to open cast coal mines in , and Flood hazards using a gis-based hydrological/hydraulic Model and remote sensing data
How can the overburden dump from open cast coal mining be , Nov 17, 2017· The type, amount, and properties of mine waste produced at different mines vary depending on the resource being mined, process technology used, and geology at the mine site While many mine wastes are being, mining companies manage their waste in .
Rehabilitation of coal mine area: a case from Bisrampur , Mining is one of the most destructive activities to the nature In the open cast mining method, the environment degrading activities starts right from the clear felling of the area for mining and .
Jami M Girard , PE, CMSP Mining Engineer, National , ASSESSING AND MONITORING OPEN PIT MINE HIGHWALLS Jami M Girard1, PE, CMSP 1Mining Engineer, National Institute for Occupational Safety & Health, Spokane Research Laboratory, 315 E Montgomery Ave, Spokane, WA 99207 INTRODUCTION Slope stability accidents are one of the
Case Studies of Successfully Reclaimed Mining Sites , Huehnerwasser Catchment at Welzow-South Coal Mine, Germany A truly unique reclamation project is underway near Cottbus, State of Brandenburg, Germany, at a location called Huehnerwasser (Chicken Creek), where there was previously an open pit mine
3 Technologies in Exploration, Mining, and Processing , The life cycle of mining begins with exploration, continues through production, and ends with closure and postmining land use New technologies can benefit the mining industry and consumers in all stages of this life cycle This report does not include downstream processing, such as smelting of .
Environmental Consequences of Open Pit Mining - Blogger Mar 14, 2012· Environmental Consequences of Open Pit Mining An open pit mine is a type of excavation where surface and subsurface materials (soil and rock) are removed, typically through use of explosives and mechanical mining and hauling equipment, to gain access to commercially valuable ores or other buried natural resources, including coal and gemstones .
Open-pit mining - Wikipedia Open-pit mining is to be considered one of the most dangerous sectors in the industrial world It causes significant effects to miners health, as well as damage to the ecological land Open-pit mining causes changes to vegetation, soil, and bedrock, which ultimately contributes to changes in surface hydrology, groundwater levels, and flow paths
Government delays decision on controversial Druridge Bay , A planning decision for a new open cast coal mine that had been billed as a major test of the government's commitment to its high profile coal phase out has been deferred, despite Ministers having .
Slope Stability Study of External Dump of Sonepur-Bazari , SLOPE STABILITY STUDY OF EXTERNAL DUMP OF SONEPUR-BAZARI OPENCAST COAL MINE, INDIA- A CASE STUDY DrIndrajit Roy , position in acquiring large tracts of land for open cast coal mining which involves handling of large volume of waste rock , and economical aspects This waste material dumped outside the quarry is termed as external dump This .
Mine Planning Software | Coal | SRK Consulting News With these resources available in-house, the SRK coal group can provide a full range of services to the mining industry that cover geological modeling, mine planning and scheduling, for both open pit and underground coal mining projects and operations Underground Mining Underground mining is the oldest method of mining coal
About coal mining impacts | Greenpeace International Jul 01, 2016· Underground mines, which provide the majority of the world’s coal, allow coal companies to extract deep coal deposits About 40 percent of the world’s coal mines are the more damaging strip mines (also called open cast, open pit, mountaintop or surface mining) Strip mining impacts Strip mining is highly destructive
The worlds deepest, biggest and deadliest open pit mines , Open pit Mine (Photo by wikipedia) The biggest iron mine The worlds biggest open pit iron mine can be found near Hibbing, Minnesota At its maximum, the area covered by the Hull Rust open pit mine is five miles (8km) long, 2 miles (3,2km) wide and 535 feet (180m) deep It looks like a man-made Grand Canyon of over 2,000 acres (8,1km²)
Design of an External Waste Rock Dump in an Opencast Coal , US $ per ton of coal from underground min Whereas, coal from Tikak opencast mine of NEC alone contributes a profit of nearly 100 US$ per ton As a result, NEC has decided to close some of its underground mines and with consequent stress on coal production from open cast projects/quarry for its ,
Surface Mining Methods and Equipment UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol II - Surface Mining Methods and Equipment - J Yamatomi and S Okubo ©Encyclopedia of Life Support Systems (EOLSS) Figure 2 Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs
Surface Mining Methods and Equipment - eolss UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol II - Surface Mining Methods and Equipment - J Yamatomi and S Okubo ©Encyclopedia of Life Support Systems (EOLSS) Figure 2 Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs
Makhado Coal Mine, Vhembe District, Limpopo Province , The mine is estimated to contain probable reserves of 188Mt, containing 2563Mt of hard coking coal and 4453Mt of thermal coal Mining and processing of coal from Makhado mine Conventional truck and shovel mining methods will be applied at the Makhado open cast mine The operation will have three open pits, East Pit, Central Pit and West Pit
Top 10 Ways to Make Mines More Environmentally Friendly , Apr 29, 2014· Accurate tallying of toxic mining waste , of corporations and private mines alike being able to build new construction and infrastructure from the reusable materials that a mine site presents For example, aluminum can be substituted as a recyclable material rather than using bauxite ore, which is a rarer and less reusable item .