Activated carbon (or charcoal) is a porous form of carbon commonly used for adsorption and in chemical reactions. The microposority increases its surface area significantly. Adsorption properties are usually enhanced by chemical treatment. Alternatives that work in the same manner are activated coal and coke. There are a number of things relating to activated carbon Philippines residents need to know.
A number of raw materials are available to be used as a source of carbon. They include, among others, coconut husks, nutshells, petroleum pitch, wood and peat among others. There are two main options of activation: a physical process and a chemical one. During physical activation, the raw materials are burned with hot gases in air. The temperature needed for this is anything between 600 and 1200 degree Celsius.
Chemical activation is achieved by first ensuring that the raw material is impregnated with special chemicals. These include, for example, acids, alkalis and salts such as phosphoric acid, calcium chloride, sodium hydroxide and zinc chloride among others. After the addition of these chemicals the materials are taken through a second process known as carbonization. This is done at a temperature of 450 to 900 degrees Celsius. Generally, most the chemical process is more preferred due to the lower temperature needed.
Active charcoal is widely used in the medical field. One of the commonest uses is in managing drug poisoning and overdose resulting from oral intake of certain chemicals. Examples of chemicals for which the charcoal has been effective include arsenic, lithium, ethanol, methanol, cyanide and acids among others. It is available in many places as an over the counter tablet. Caution should be taken to avoid aspiration as it may lead to aspiration pneumonitis.
There are a number of environmental and industrial applications that exist. Here, it is mainly used in processes concerned with the removal of pollutants from water and air. They include, for instance, spill clean ups, drinking water filtration, remediation of ground water and the capture of volatile organic compounds (VOCs) derived from petroleum products. As it purifies air it also determines the radon concentration.
Active charcoal is classified in a number of ways depending on physical attributes and uses. Some of the physical properties that may be used include the iodine number, the surface area, the density, ash level and the mesh size among others. Powdered activated charcoal is made of granules less than 1 millimeter in diameter and is mainly used in process units such as clarifiers and gravity filters among others. Granular charcoal has larger particles and us mainly used in water treatment and deodorization.
Mercury scrubbing is another important application. This is important in coal power stations and medical incinerators. For the charcoal to be effective for this use, it is first mixed with iodine or sulfur. The mercury binds irreversibly to the charcoal which helps clean the equipment involved. The reluctant compound is usually disposed of in a land fill as long as the concentration of the mercury is less than 260 parts per million.
Activated charcoal is a compound with numerous applications that range from industrial to agricultural to medical. The list has been growing by the day as more uses are discovered. If you have plans of using the charcoal, ensure that you get in touch with an expert. This is because, there are different types all with different physical properties.
A number of raw materials are available to be used as a source of carbon. They include, among others, coconut husks, nutshells, petroleum pitch, wood and peat among others. There are two main options of activation: a physical process and a chemical one. During physical activation, the raw materials are burned with hot gases in air. The temperature needed for this is anything between 600 and 1200 degree Celsius.
Chemical activation is achieved by first ensuring that the raw material is impregnated with special chemicals. These include, for example, acids, alkalis and salts such as phosphoric acid, calcium chloride, sodium hydroxide and zinc chloride among others. After the addition of these chemicals the materials are taken through a second process known as carbonization. This is done at a temperature of 450 to 900 degrees Celsius. Generally, most the chemical process is more preferred due to the lower temperature needed.
Active charcoal is widely used in the medical field. One of the commonest uses is in managing drug poisoning and overdose resulting from oral intake of certain chemicals. Examples of chemicals for which the charcoal has been effective include arsenic, lithium, ethanol, methanol, cyanide and acids among others. It is available in many places as an over the counter tablet. Caution should be taken to avoid aspiration as it may lead to aspiration pneumonitis.
There are a number of environmental and industrial applications that exist. Here, it is mainly used in processes concerned with the removal of pollutants from water and air. They include, for instance, spill clean ups, drinking water filtration, remediation of ground water and the capture of volatile organic compounds (VOCs) derived from petroleum products. As it purifies air it also determines the radon concentration.
Active charcoal is classified in a number of ways depending on physical attributes and uses. Some of the physical properties that may be used include the iodine number, the surface area, the density, ash level and the mesh size among others. Powdered activated charcoal is made of granules less than 1 millimeter in diameter and is mainly used in process units such as clarifiers and gravity filters among others. Granular charcoal has larger particles and us mainly used in water treatment and deodorization.
Mercury scrubbing is another important application. This is important in coal power stations and medical incinerators. For the charcoal to be effective for this use, it is first mixed with iodine or sulfur. The mercury binds irreversibly to the charcoal which helps clean the equipment involved. The reluctant compound is usually disposed of in a land fill as long as the concentration of the mercury is less than 260 parts per million.
Activated charcoal is a compound with numerous applications that range from industrial to agricultural to medical. The list has been growing by the day as more uses are discovered. If you have plans of using the charcoal, ensure that you get in touch with an expert. This is because, there are different types all with different physical properties.
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