Flue-Gas Desulfurization: A New Technological Way To Clean
Today, we are more aware of the dangers of our actions towards the environment, damaging it extendedly. The rise of human civilization, industrializations, and the urbanization of our cities plundered natural resources. The only help we can give to the environment is the stop of further damage. One way to help the situation is Flue gas Desulfurization or FGD. To explain, it is a technological way to clean away sulfur from the flue gas. This process is to help reduce air pollution and avoid further damage to the atmosphere.
Flue gas Desulfurization helps to remove Sulfur dioxide. Sulfur dioxide is a toxic and a stringent component of the atmosphere. The process utilizes the use of alkaline sorbents such as limestone or sea water.
Understanding Flue-gas Desulfurization
The study of this technology has been going on for over 100 years. The idea of Desulfurization was established in England around 1850. Also known as “wet scrubbing”. Mostly uses for power plants, refineries, and other industrialized infrastructures that emit harmful gases. Flue gas Desulfurization is the process of removal of pollutants, especially sulfur dioxide from flue gas. It aims to reduce air pollution by taking away pollutants emitted by industrialized infrastructures. The methods vary depending on the scale of operation or the emission of flue gas.
In addition, Flue-gas Desulfurization is advantageous as it is low costing and environment-friendly. It is a process that is widely used by industrialized countries to reduce air pollution.
Its Main Target Is Sulfur Dioxide
Sulfur dioxide is a hazardous compound which is dangerous to both humans and the environment. The process of flue gas Desulfurization is mainly to reduce or eliminate Sulfur Dioxide. Since the elimination of Sulfur dioxide greatly helps reduce air pollution and airborne diseases.
Sulfur dioxide is present in motor vehicle emissions, burning of fossil fuel and infrastructure emission. Most of these sources are because of human activity. Ironically, Sulfur dioxide is hazardous to humans as well. Thus, inhaling Sulfur dioxide may cause headaches, shortness of breath, sneezing, and coughing. It may also irritate our respiratory system affecting cardio activity.
How Does Flue-gas Desulfurization Works
Flue gas Desulfurization is a process of using various alkaline sorbents to reduce or eliminate sulfur. It differs in techniques and materials used, but the concept remains the same. Some methods of FGD create wastewater, while some emit dust. These wastes go directly to a container. These components are somewhat easier to contain than sulfur dioxide.
Some methods of FGD:
- Wet Scrubbing – scrubs exhaust with alkaline sorbents such as limestone or sea water. Wet scrubbing may increase the proportion of water in the gas, called FGD wastewater.
- SNOX – is a catalytic based process that does not require sorbents or water. This process does not produce waste. It only produces dust.
- Wet Sulfuric Acid Process – separates and recovers sulfur to the form of sulfuric acid.
- Dry Sorbent Injection – is a system that utilizes the use of powdered hydrated lime — placed on exhaust or ducts to eliminate sulfur dioxide.
Today, awareness of our actions towards the environment is universal for everyone. The industrialization of our cities and the rise of our civilization has plundered our planet. Companies and industries are now using methods to control or reduce their emission of harmful compounds such as sulfur dioxide, carbon monoxide, and other greenhouse gases. Sulfur dioxide is a dangerous compound that affects the environment and humans.
One method they use is the FGD or Flue gas Desulfuration. It is the process of using alkaline sorbents to reduce or eliminate sulfur dioxide. FGD has several different systems or methods. Some of the methods are producing FGD wastewater while some produce dust and sulfuric acid. These components are slightly more natural to contain and clean. Making FGD one of the revolutionary techniques to rid of harmful compounds from the air.