Category: Raw Materials
Activated Carbon Black
Activated carbon is also known as activated carbon black. It is black powdery or lumpy, granular, honeycomb amorphous carbon, and also has well-arranged crystalline carbon. In addition to carbon elements in activated carbon, it also contains two types of adulterants: the class is chemically bonded elements, mainly oxygen and hydrogen, which are left in the carbon due to unfinished carbonization, or in the activation process, foreign non-carbon elements are chemically bonded to the surface of activated carbon, such as activation with water vapor, the surface of the activated carbon is oxidized or oxidized by water vapor; the other type of adulterants is the ash, which is the inorganic portion of the activated carbon; the ash in the activated carbon is easy to cause secondary pollution.
In terms of elemental composition of activated carbon, more than 80%-90% is composed of carbon, which is the reason why activated carbon is a hydrophobic adsorbent. In addition to the carbon elements in activated carbon, it also contains two types of adulterants: the class is the chemical combination of elements, mainly oxygen and hydrogen, these elements are due to the unfinished carbonization and residual in the carbon, or in the activation process, foreign non-carbon elements and the surface of the chemical combination of activated carbon, such as the activation of the activated carbon with water vapor, the surface of the activated carbon is oxidized or the oxidation of the water vapor; the other type of adulterants is the ash, which is the inorganic part of the activated carbon, several kinds of elements that make up activated carbon. With the continuous development of the activated carbon industry, more and more industries and enterprises utilize activated carbon, and some enterprises have entered the activated carbon industry.
1. High adsorption capacity:
The porous structure and large surface area of activated carbon give it excellent adsorption capacity. This means that it can effectively adsorb a variety of gases, liquids and dissolved substances, including organic pollutants, odors, harmful gases and heavy metals.
2. Water and air purification:
Activated carbon is widely used in water and air purification. In water treatment, it can remove pigment, odor, organic pollutants, chlorine and heavy metals. In air purification, it can adsorb harmful gases such as sulfur dioxide, carbon monoxide and volatile organic compounds.
3. Antidote:
Activated carbon can be used in medical applications as an antidote for poisonings. It adsorbs toxins, reduces the symptoms of poisoning and provides valuable time for other treatments.
4. Improvement of water quality:
Activated carbon can improve the taste and odor of drinking water, making it fresher. It also removes drug residues, organic matter and microorganisms to improve water quality.
5. Environmental protection:
Activated carbon is a natural material that does not pollute the environment. It can reduce the generation of waste through regeneration and recycling, which helps to protect the environment.
1. Limited saturation:
Activated carbon has a limited adsorption capacity. Once its adsorption sites are saturated, it needs to be replaced or regenerated. This may lead to a decrease in efficiency, especially in highly polluted environments.
2. Selective adsorption:
Activated carbon has selective adsorption properties, which means that it can only adsorb specific types of pollutants and may not be effective for other substances. Therefore, consideration needs to be given to selecting the right type of activated carbon when designing a treatment system.
3. Higher cost:
The preparation of high quality activated carbon requires special treatment and activation, which makes its production relatively expensive. In addition, periodic replacement or regeneration can also increase operating costs.
4. Space Occupancy:
Activated carbon typically requires a large amount of space to provide sufficient surface area for effective adsorption. This may limit its use in some applications.
5. Non-renewability:
While activated carbon can be regenerated and recycled, the process is usually costly and cannot be repeated indefinitely. Therefore, not a fully sustainable solution.
