Your question: How does removal of Sulphur from coal reduce air pollution?

What does removing sulfur from coal do?

Inorganic sulphur, in the form of pyrite (FeS2), can be removed from coal relatively easily simply by washing the coal. This method can result in a reduction of 10 – 50% of total sulphur content. However, again as with fuel switching the reduction is limited, plus large quantities of waste water are produced.

How can Sulphur dioxide pollution be reduced?

Reducing Pollution

One option is to use coal that contains less sulfur. Another option is to “wash” the coal to remove some of the sulfur. The power plant can also install equipment called scrubbers, which remove the sulfur dioxide from gases leaving the smokestack.

How does Sulphur dioxide cause air pollution?

These gases, especially SO2, are emitted by the burning of fossil fuels — coal, oil, and diesel — or other materials that contain sulfur. … Sulfur dioxide is also a natural byproduct of volcanic activity. Like nitrogen dioxide, sulfur dioxide can create secondary pollutants once released into the air.

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Why is it important to remove sulfur from coal and natural gas before they are burned?

Unlike carbon, sulfur is actually an undesired contaminant in fuels. This means that if all of the sulfur could be removed from fossil fuels before they are burned, sulfur emissions would be slashed and pollution curbed.

What is the drawback of Sulphur in coal?

When coals are burned, leached and washed, sulfur will be released in the form of sulfide and H2S, which then react with O2, water and other substances to change into vitriol, and in some places it may form acid rain. And they will impact water environment, acidify the soil and do great harm to plants and human health.

Why is sulfur bad for the environment?

What are the environmental effects of SO2 and other sulfur oxides? At high concentrations, gaseous SOx can harm trees and plants by damaging foliage and decreasing growth. SO2 and other sulfur oxides can contribute to acid rain which can harm sensitive ecosystems.

What are the harmful effects of Sulphur dioxide?

Effects on health

Sulphur dioxide can cause respiratory problems such as bronchitis, and can irritate your nose, throat and lungs. It may cause coughing, wheezing, phlegm and asthma attacks. The effects are worse when you are exercising. Sulphur dioxide has been linked to cardiovascular disease.

Which is the major source for Sulphur dioxide Mcq?

Which is the major source for sulphur dioxide? Explanation: Though emission of sulphur dioxide is peak during volcanic eruptions, its major source is during combustion of crude oil and coal for heat and power generation.

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Which is the major source for Sulphur dioxide?

The main sources of SO2 emissions are from fossil fuel combustion at power plants, refineries, and other industrial facilities. Secondary sources of SO2 emissions include ore smelters and the burning of high sulfur fuel by trains, large ships, and non-road equipment.

What happens if you breathe in sulfur?

What immediate health effects can be caused by exposure to sulfur dioxide? Inhaling sulfur dioxide causes irritation to the nose, eyes, throat, and lungs. Typical symptoms include sore throat, runny nose, burning eyes, and cough. Inhaling high levels can cause swollen lungs and difficulty breathing.

What effect does sulfur dioxide have on climate?

In addition to harming human health, the gas reacts with water vapor to produce acid rain. Sulfur dioxide also can react in the atmosphere to form aerosol particles, which can contribute to outbreaks of haze and influence the climate.

Does burning coal release sulfur dioxide?

Sulfur dioxide, SO2, is a colorless gas or liquid with a strong, choking odor. It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores (aluminum, copper, zinc, lead, and iron) that contain sulfur.

What is the cleanest burning fossil fuel?

Natural gas is a relatively clean burning fossil fuel

Burning natural gas for energy results in fewer emissions of nearly all types of air pollutants and carbon dioxide (CO2) than burning coal or petroleum products to produce an equal amount of energy.