Electricity Case Study

INTRODUCTION Electricity is important in our life for daily use like lighting on the bulb, for cooking and to run an industry process. There are many ways to generate electricity, for example are wind turbine, nuclear reactor and combustion of solid fuels such as coal and biomass. These ways of generating electricity are important for continuity consumption of electricity. But in other way, these ways give a lot of bad effects towards human and environment. For this case study, the combustion of coal in large combustion plant in order to generate electricity will be discussed. How the pollutants are formed from the process and what are the bad effects of combustion of coal to human and environment will be discussed in this case study. Nevertheless, how the pollutants will be monitored and how to control the emission of pollutant also will be explained in this case study. Basically, there are three common types of combustion of coal such as pulverized hard coal combustion, fluidized bed combustion (FBC) and grate firing (GF). These three types of combustion are different by how the coal is used to generate electricity.

SOURCES There are a lot of pollutants that

Thus, one of the best option in order to reduce CO emission is by performing the complete combustion by providing unlimited oxygen in the combustion zone. Good furnace design, high performance monitoring usage and maintenance of the combustion system are a few ways should be practiced in order for complete combustion (European Commission, 2006). Otherwise, the wet scrubber technique is used to reduce hydrogen chloride and hydrogen fluoride by 98-99% (European Commission, 2006). Halogen gas can be removed by dissolving the halogen gas in the water stream through a scrubbing tower (Lee, 2005). Then, the water dissolving the halogen gases will be collected on the collecting surface and removed safely (Lee,