Activated carbon is the most important requirement of water media to use in water treatment plants. activated carbon is designed for the reduction of tastes, odors, and dissolved organic chemicals from municipal and industrial water supplies. PureLife is the leading position activated carbon importer and supplier in Bangladesh.
Table of Contents
- What Is Activated Carbon?
- 1. Thermal Activation
- 2. Chemical Activation
- Activated Carbon Name
- Classifying Activated Carbon
- Uses of Activated Carbon
- Adsorption Principles:
- Applications of Activated Carbon:
- Best activated carbon importer and supplier in Bangladesh
What Is Activated Carbon?
Activated carbon is a form of carbon that has been used to have an incredibly large face area. actually, low-volume pores give a field for either adsorption or chemical responses.
One gram of actuated carbon has over square bases ( square measures) of the face area and one small spoon has roughly the area of a football field. This enormous area alone makes activated carbon extremely useful for a wide range of operations, but activated carbon can suffer further chemical treatment to increase its adsorption parcels.
Activated carbon is produced from the carbonaceous source material. Exemplifications include wood, bamboo, sawdust, willow peat, coconut shell, peach recesses, coir, petroleum pitch, and a variety of coal. But regular carbon isn’t the same as actuated carbon. To form millions of bitsy pores across its face, carbon must first be activated.
This is produced by one of two styles thermal or chemical activation.
1. Thermal Activation
In thermal activation, the source material is formed into actuated carbon process hot gases. After being explored to heat, brume is generally introduced to help open the pores.
Thermal activation is generally done through a process involving reduction of humidity, reduction of volatiles, carbonization, and a brume treatment. This process is carried out in an inert atmosphere using feasts similar to carbon dioxide, nitrogen, or argon.
2. Chemical Activation
In chemical activation, chemicals are added to the raw source material before the carbonization process. Generally, the chemical used is a strong base, acid, or swab. The material is also exposed to heat, and it activates snappily.
Activated Carbon Name
- Granular Activated Carbon (GAC)
- Powdered Activated Carbon (PAC)
- Extruded Activated Carbon (EAC)
- Blob Actuated Carbon (BAC)
- Woven Carbon
- Polymer Actuated Carbon
Classifying Activated Carbon
Granular Activated Carbon (GAC) Granular activated carbon atoms are large, but they have a lower external face area than other types of activated carbon. GAC atoms are well suited for the adsorption of vapors and feasts because they diffuse snappily, and they’re frequently used in water treatment.
Powdered Activated Carbon (PAC) Powdered activated carbon has incredibly fine patches made up of ground or persecuted carbon. Genpowdered patches are added directly to other process units, including rapid-fire blend basins, raw water inputs, and pollutants.
Extruded Activated Carbon (EAC) Extruded Activated Carbon patches dissolve PAC with a binding agent, producing a tough, spherical, or round flyspeck. Due to its low-pressure drop, low dust content, and good mechanical strength, EAC is primarily used in gas phase operation. EAC patches are used in CTO pollutants, which remove chlorine, taste, and odor.
Blob Actuated Carbon (BAC) is formed from petroleum pitches. Analogous to EAC patches, BAC is valued for its low dust content and mechanical strength. Its globular shape makes it ideal for operations similar to water treatment.
Woven Carbon Actuated carbon can be woven into specialized rayon fiber to produce actuated carbon cloth. The finished material has carbon filtering parcels and is used in numerous operations similar to odor immersion and defense.
Polymer Actuated Carbon With polymer activated carbon, the previous carbon flyspeck is carpeted with a biocompatible polymer. This gives the finished carbon a smooth, passable external shell that doesn’t block its pores. Polymer actuated carbon is largely used in hemoperfusion, a kind of medical treatment.
Uses of Activated Carbon
Water Purification Water sanctification is a major use of activated carbon. Activated carbon pollutants are used in both large-and small-scale products. They can remove contaminations from large-scale, community-wide water systems as well as lower-scale, domestic operations.
Medical Operations Activated carbon is extensively used in the medical community to treat overdoses and poisoning. Also, activated carbon capsules or tablets can be bought around the world to palliate problems like indigestion and diarrhea.
Adsorption Principles:
Adsorption is one of the most constantly used but least understood terms in conversations about filtration. Adsorption refers to the junking of contamination from a liquid to the face of a solid. A water-born, suspended flyspeck adheres to a solid face when adsorption occurs.
Adsorption is the adhesion of tittles, ions, or motes from a gas, liquid, or solid to a face. In the case of water filtration, the suspended solid patches present in the liquid will cleave to the media solid face.
Adsorption differs from occlusion in that clotted patches are removed from a process inflow because they are, whereas occlusion is the result of patches being too large to pass through a physical restriction in the media. In utmost cases, adsorbed patches are affected by weak chemical relations that allow them to cleave to the face of a solid. Adsorbed patches come attached to the face of a given media, getting a film of weakly held part of the solid.
Granular Actuated Carbon (GAC) is substantially used in fixed sludge beds. Some of the important aspects that need to be considered are needed contact time, sludge vessel sizing, filling and evacuating installations, and safety measures.
It’s a myth that Actuated Carbon can be regenerated by the bare outcome. Backwash only removes the trapped material & reclassifies the Filter Bed. Actuated Carbon has a certain life after which it can not remove contaminations & hence needs to be removed and replaced.
Actuated carbon is a carbonaceous adsorbent with high internal porosity, and hence a large internal face area. Marketable actuated carbon grades have an internal face area of 500 up to 1500 m2/g. Related to the type of operation, three major groups live
Applications of Activated Carbon:
There are many applications for Activated Carbon Filters. Only some of them which are most important & common are listed below.
- Free Chlorine Removal
- Organic Matter removal
- Odour Removal
- Bromate Removal (After Ozonation of SWRO Permeate)
- De-colourisation of Sugar Melt (White Sugar Manufacturing)
- De-colourisation of Molasses
- Air Purification
- Catalyst Carrier
- Flue gas purification (Dioxin & Mercury Removal)
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