Morgan State University
Environmental impact of coal processing toxins on health
Rose Dangana
PUBH 506.186
Instructor: Dr. Sharon Barnett
April 29, 2015
Coal is an inflammable, loose organic rock, comprised of hydrogen, carbon and oxygen. It is formed when vegetation which has consolidated between rock layers transforms into coal seams after undergoing heat and pressure for millions of years. There is more supply of coal than oil or gas, a supply that could last the entire world for about 109 years into the future. Coal provides electricity as well as fuels the production of steel, cement and other industrial activities. Each year, over 6,185 million tons (Mt) of hard coal and 1,042 Mt of brown or lignite coal is produced worldwide. The top five coal producing countries are China, United States (US), Australia, India and South Africa. Eighty-five percent of the coal produced is used in the country of production and only fifteen percent is exported (World Coal Association, 2015).
Coal can be mined using two methods, the surface or ‘opencast’ mining and the underground or ‘deep’ mining. Underground mining is more common although the largest coal producing countries use the surfacing mining method. In US, surface mining account for sixty seven percent of coal production while in Australia, it accounts for eighty percent of its production. Surface mining is more economical if the coal is close to the surface (World Coal Association, 2015).
Coal is viewed as
When asked to think of coal mining, what comes to mind? A mountain with a hole cut into the side of it with a set of railroad tracks disappearing into it? Maybe an old mine car or two full of some rocks or coal, with a pickaxe and shovel leaning against it. A few guys with hard hats covered in a black powder coming walking out of the mine pushing a car or two full of coal. The technology has advanced but the process is basically still the same as well as the outcome. Coal is retrieved from underground and taken to factories to be burnt to create electricity or to fuel the steel mills.
Coal is the dirtiest of all fossil fuels. When burned, it produces emissions that contribute to global warming, create acid rain and pollute water. With all of the talk surrounding nuclear energy, hydropower and biofuels, you might be forgiven for thinking that grimy coal is finally on its way out. On the other hand, coal is no sooty remnant of the Industrial Revolution - it generates half of the electricity in the United States and will likely continue to do so as long as it's cheap and plentiful . Clean coal technology seeks to reduce harsh environmental effects by using multiple technologies to clean. Coal is a fossil fuel composed primarily of carbons and hydrocarbons. Its ingredients help make plastics, tar and fertilizers. A coal derivative, a solidified carbon called coke, melts iron ore and reduces it to create steel. But most coal - 92 percent of the U.S. supply - goes into power production .Electric companies and businesses with power plants burn coal to make the steam that turns turbines and generates electricity. When coal burns, it releases carbon dioxide and other emissions in flue gas, the billowing clouds you see pouring out of smoke stacks. Some clean coal technologies purify the coal before it burns. One type of coal preparation, coal washing, removes unwanted minerals by mixing crushed coal with a liquid and allowing the impurities to separate and settle. Other systems control the coal burn to minimize emissions of sulfur dioxide, nitrogen oxides and
China produces half of the world’s coal, and 70% of china’s energy is produced by burning coal, about the same as Australia. China has burned about 3.8 Billion tons of before 2011, and the rest of the world has burnt 4.3. Coal burning produced about five billion tons of carbon dioxide in china in 2004.
Coal ash is a byproduct of burning coal in power plants and is composed mainly of aluminum and silicon oxides. This ash is commonly stored away in dump sites, only to leach out solutions of concentrated toxic heavy metals. Such issues are detrimental to the health of water systems, posing both a human and environmental health risk. However, there are solutions to this problem. Coal ash possesses unique chemical properties that allow for the remediation of other environmental concerns, such as the treatment of soil polluted with heavy metals, the removal of nutrients from wastewater, and the remediation of acid mine drainage in streams.
When I go to my home where I grew up it is all electrical produced and the main producer of that electricity is from coal a fossil fuel. In that area coal is one of the primary exports of that area. (Administration,
Nowadays, coal is still one of the greatest used energy to generate power in so many countries. Using coal in electricity generation is 93% in South African, 87% in Poland, 79% in China, 78% in Australia, 45% in USA, 41% in Germany, 58% in Israel etc. (Coal & Electricity) From the data above, even the developed countries use coal to generate power as the main source. In many developed countries, energy generation is still based on coal as a long-term source. In recent years, although there is an increasing number of equipment using gas and wind to generate the power, it is still lower than the proportion of coal-fired power generation. The reason why most countries choose coal as a main source to generate electricity, is that there are many advantages in using coal to generate electricity. First of all, coal is the
Ultimately, Dr. Shea found very little actual health risks from the coal ash spill. According to Dan Way, Dr. Shea reported that short-term toxic harm resulted from the spill, and that there were only isolated cases of coal ash contaminating groundwater (2014). However, there was agreement that long-term monitoring was necessary at the Dan River to assess longer term damages.
The energy we get from coal today comes from the energy that plants absorbed from the sun millions of years ago. When an area is to be mined, topsoil and subsoil are removed from the rock and so is another material, call overburden, to expose the bed of coal. All living plants give solar energy through photosynthesis. When plants die the energy gets out as the plants decay. The whole decaying process gets interrupted which prevents the release of the stored solar energy, then the energy stays locked in the coal. The plant material gets subjected to high temperatures and pressures which causes physical and chemical changes in the vegetation, transforming it into peat and then into coal. The formation of peat is the first step in the geological formation of fossil fuels such as coal. Peat plants is not only the first step for formation but they also capture CO2 itself. There are many effect to the environment when it comes to coal; an example is AMD which stands for Acid mine drainage; it includes the outflow of acidic water from coal mines or metal mines. Mines exposed rocks containing pyrite which reacts to water and air to form acid and dissolved iron and can easily wash into rivers and streams. Coal is a huge impact when it comes to hurting our
Western Virginia and the Appalachian Plateau have an abundance of coal in their land. Mostly it is from million year old decomposed plant materials that have created 76 distance coal beds; about half of these are currently being commercially mined. Two fifths of the coal produced in VA is exported out of state. The remaining coal is used to produce energy in local coal burning power plants. Locally sourced coal makes up a little bit over 37% percent of all of Virginia’s power (Sites, 2014).
Coal power is the cheapest fuel to power the ever growing population with Australian mining industry still putting in billions of dollars into a vast amount of coal projects never the less coal power is a fossil fuel, a fuel which takes hundreds of year to form so the future of coal is undetermined. Coal is a reliable power source but one of the many concern with coal is the mining process used to remove it from the ground. Ecological effects are developing worries for the industry, with the carbon emissions possibly contributing to global warming.
Coal has been around for 250 million years, but only has been used since the 1800’s first by trains and now for energy all around the world and many other things that people couldn't think of! Coal is a combustible sedimentary organic rock which is composed of carbon, hydrogen, and oxygen. It is formed from vegetation which has been consolidated between two other rock strata and altered by the combined effects of pressure and heat over millions of years to form coal seams. There are over 174,000 jobs in the U.S associated with coal and 83,000 of them are mining jobs, Coal miners have found many ways to extract coal from the ground which includes, surface mining, longwall mining, room and pillar mining, and underground mining. “Surface
Coal contains a lot of energy and is abundant. Next, the technological demands are low, as well as the cost. It is easy to manage and needs little purification before
Becuase it is a stable energy source there is no sudden scarcity (you can experience sudden scarcity with Natural Gas). The textbook says, “Coal is the most abundant fossil fuel in the world. Every continent has coal, but almost two-thirds of known deposits occur in three countries- The United States, Russia, and China.” (Allison 161). Another reason is, there is plenty enough coal to last us for a long while. In December of 2014 there was 1.2 trillion short tons of coal in the United States. One last reason it is good for the environment is because it is good for foreign and developing countries. It is good for these countries because they produce lots of coal, especially Australia. Australia was big for its coal becuase it was produced by coal fired power
Coal is a hard, black colored rock-like substance. It is made up of carbon, hydrogen, nitrogen, and varying amount of sulphur. Coal was form as decomposition took place in the absence of oxygen and much of the hydrogen content of the matter was eroded away, leaving a material rich in carbon. The material was compressed over the years by sand and dirt, leaving the form of a carbon known as coal. The different types of coals are Anthracite, bituminous, lignite, peat, coke, and charcoal. Coal is mined out of the ground and used to produce energy. However, they are many deaths, injuries, and sickness involved in mining coal.
Surface mining is the coal mining process that accounts for around 60% of the United States’ coal. It tends to be very efficient, with a single worker recovering up to 30 to 40 tons of coal in a day. To begin surface mining coal, a drill must