What are the characteristics of Activated Carbon?
Activated carbon adsorption is a combination of physical and chemical adsorption. The pore structure and chemical make-up of activated carbon influences its adsorption. It contains not just carbon, but also a small amount of chemically coupled oxygen and hydrogen, as well as functional groups such as carbonyl groups, carboxyl groups, phenols, lactones, quinones, and ethers.
Catalytic activation of carbon
In many adsorption processes, activated carbon is followed by catalytic reactions, demonstrating the activity of the catalyst. For example, activated carbon adsorbs sulphur dioxide and catalytically oxidizes it to sulphur trioxide. Because of the presence of particular oxygen-containing molecules or complexes on the surface of activated carbon, it can act as a catalyst in a variety of processes. Due to its developed pore structure, large internal surface area, and strong heat, acid, and alkali resistance, activated carbon can be utilized as a catalyst carrier.
Mechanical properties of activated carbon
1: Particle size: The weight of the activated carbon remaining in and passing through each sieve is computed using a standard sieving method to indicate the particle size distribution.
2: Static density:It is also known as bulk density, and it is the weight of activated carbon per unit volume of the diet's pore volume and void volume between particles.
Treatment with Activated Carbon
Treatment with activated carbon is essentially based on the process of adsorption, which occurs when molecules of a liquid or gas cling to an external or internal surface of a solid substance. Activated carbon has a huge internal surface area (up to 1,500 m2/g), making it ideal for adsorption. It can be treated with specific chemicals to improve its characteristics for specific purposes.
characteristics of Activated Carbon
Water and liqu?id applications include
1: treatment of domestic water (in-line and cartridge filters),
2: purified water (de-chlorination and de-ozonation),
3: remediation of groundwater,
4: tertiary wastewater treatment (trace organics and COD removal, de-odorization and de-colourization, powdered as bio-flock enhancement in an aerobic or anaerobic biological wastewater treatment plant, as an additive for physical-chemical treatments),
5: raw material purification (purification of oils and fats, alcoholic and soft drinks, dyestuffs, decolourization of sugar and glucose, food, chemicals, pharmaceuticals),
6: catalytic procedures, etc.
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