No, because filtering through coal only removes particles, however, a salt which is dissolved in water and is a solution can not be physically filtered through coal.
An example of filtering salt would be evaporating the salt water which leaves with salt
Activated carbon is the type of coal commonly used for water purification. It has a porous structure that helps to trap impurities and contaminants from water as it passes through, making it a popular choice for filtering out pollutants.
By washing with water
Coal is removed from deep underground through a process called underground mining. This involves digging shafts into the ground, then using machinery to extract the coal from the coal seam. Miners then transport the coal to the surface for processing and distribution.
deep mining is how coal removed
Coal is typically removed from the earth through surface mining or underground mining. In surface mining, large machines called draglines or shovels remove the coal from the surface of the earth. In underground mining, miners dig tunnels to access the coal seams and extract the coal using machinery.
Coal is removed from the earth through a process called mining. There are two main methods of coal mining: surface mining and underground mining. In surface mining, large machines remove the topsoil and rock layers to access the coal deposits, while in underground mining, tunnels are dug deep into the earth to reach the coal seams.
Coal can be purified through a process called coal washing, which involves crushing the coal and using water and gravity separation to remove impurities like sulfur and ash. Flotation can also be used to separate impurities from coal by bubbling air through a mixture of coal and water. Magnetic separation can be used to extract iron and other metal impurities from coal.
Coal can purify water through a process called adsorption. When water comes into contact with coal, impurities and contaminants are attracted to the surface of the coal particles and get trapped, resulting in cleaner water. This process helps to remove pollutants and improve water quality.
The water flows through a mixed media filter with layers of layers of gravel, sand, and charcoal or coal, which filter out fine sediment. The sediment is removed from the filter by backwashing, dewatered and disposed of in a landfill.
Digging
Children were removed from the coal mines.
Use water and coal. :D