The burning of fossil fuels was acknowledged to be dangerous for the human beings as well as for the ecosystem. The leading causes of air pollution are the power plants, ships, airplanes and vehicles. The demand for more energy and better life quality compel the human beings to consume more and more fossil fuels since the alternative energy sources are still objects of research and a promise for the
3. The purpose of this study is to identify the factors causing underground degradation and impacts as result of coal mining projects industry in South Africa. 4. The following research questions are to be addressed: What are the impacts of coal mining project on underground and aboveground environment in South Africa? What are the causes of those impacts on underground and aboveground environment?
Abstract: Generation of electricity using turbine technology is very popular around the globe since most of the processes such as hydro energy are clean and renewable. Additionally, some do not pose a huge threat in human life and the environment. The traditional method of using turbine technology is very popular and wanted in many countries due to the economical cost of building and maintaining the generation plant. Additionally, the turbine technology is more efficient. This is because it can employ a number of fossil fuels, water, geothermal energy or wind to generate electricity.
Two main environmental concerns associated with the use of coal are pollution, caused by emissions of contaminants such as sulphur dioxide, nitrogen oxides and mercury, which affects human and environmental health, and greenhouse gases that are emissions that contribute to global warming. Social problems include the social and health complications that arise from the effects of the use of coal and coal mining. The mining of coal occurs in many ways, but is almost always damaging to the environment. After the mines are finished with, the area should be restored by the mining companies, which often doesn 't happen. Air pollution from coal-fired power plants includes, nitrogen oxides, sulphur dioxide and heavy metals, which leads to smog, acid rain, toxins being released into the environment, and many respiratory, cerebrovascular and cardiovascular effects.
Burning coal is the most cost-effective way of producing electricity. This is because South Africa doesn’t have to purchase coal from other countries as it is abundant and just needs excavating and is cheap once the stations have been built and are effective for using. [Source: 10 reasons why coal is efficient,Kentucky] Because coal needs excavating and to be taken to stations to be burnt, employees are needed and this gives a chance to unemployed people and creates job opportunities. This also helps boost the economy and decreases the unemployment rate. Turning to renewable energy can increase unemployment as most don’t need human activity or control to work and disadvantages our country and employees and using coal energy can solve poverty.
Still the hot outlet gas from the gas turbine can be used to produce steam for a steam turbine, as the process is being integrated to the Gasification Combined Cycle (IGCC). Compares to that of a coal, biomass is more reactive. This can result in higher gasification efficiencies and lower gasification temperatures. However the research conducted on coal gasification is in some respect very relevant for biomass gasification, for instance the design of a biomass integrated gasifier/gas turbine (BIG/GT) as mentioned by Consonni and Larson, 1994. 1.4.3
Work like coal mining severely affects a person’s health. The increase of pollution in our environment is affecting health. The emission of greenhouse gases is something that is a big factor in health and wellbeing issues. Sociological and Economic factors include a person’s education, income, living standards. Poor people are more prone to health problems
The depletion of resources and the damage to both underground and surface environments (e.g. produced water, coal slag, strip mining) the danger posed to men engaged in mining (cave-ins, explosions, gas, black-lung disease, asbestosis, silicosis, and radiation sickness) Ordinarily, mining practices are controversial. Mountaintop-removal mining, for example, allows mining companies to extract a significant amount of coal at a far lower cost, but its destructiveness has led to protections for the environment. Traditional forms of mining can be unsafe for workers. Fires and collapses can be deadly, and the health effects of mining can be devastating.
However even though geothermal plant installing need to damage the ground area for bring geothermal energy from underground to use, it is worthwhile for those countries that use it for power plant project to produce electricity such as The United States, New Zealand, Russia, Italy, Japan and it Philippines. Actually Thailand is also but it is in term of developing. Moreover geothermal can always produce the energy steadily not like some other energy like wind power and the electricity from geothermal energy is cheaper than the electricity that made from fossil
ABSTRACT Coal is an old technique and efficiency and emissions through technologies clean coal in small modern coal power plants taken. The energy of coal still generates energy for millions of people in coal plants. Coal, like all other energy sources, has a number of effects on the environment; both coal mining and coal use. The use of all technologies for electricity production will inevitably lead to some degree of pollution. A number of advanced coal combustion technologies have been developed to improve the efficiency of power generation from coal.