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3 Pillars (Private) Limited
Sri Lanka is renowned for its high-quality coconut shell activated carbon compared to other regions in the world.
Specialty of Sri Lanka coconut shells and the quality features of the resultant activated carbon are:
- High carbon content – Ensures large surface area for absorption.
- Low impurity levels (such as Sulphur, phosphorus and heavy metals) – Contribute to the purity and effectiveness.
- Hardness and durability - Well-suited for activation process without breaking down excessively
We focus only on coconut shell based activated carbon products:
3 Pillars (Private) Limited
Granulated activated carbon
Granulated Activated Carbon (GAC) is a highly effective form of activated carbon derived from coconut shells. This type of activated carbon is widely used due to its superior hardness, high surface area, and porosity, which make it suitable for a variety of applications. GAC consists of larger granules or particles, offering a balance between surface area and flow rate. It is widely used in water treatment, air purification, and gas-phase applications due to its versatility and effectiveness in adsorbing a wide range of contaminants.
3 Pillars (Private) Limited
Powdered activated carbon
Powdered activated carbon (PAC) is a fine, powdered form of activated carbon produced from coconut shells. Similar to granulated activated carbon (GAC), PAC is known for its high surface area, porosity, and adsorption capacity. The primary difference lies in its particle size, which is much smaller, typically less than 0.18 mm in diameter. This small particle size provides a larger surface area per unit volume, making it highly effective for certain applications. PAC is often used in water and wastewater treatment for its rapid absorption kinetics and effective removal of organic contaminants, taste, and odor.
3 Pillars (Private) Limited
Impregnated activated carbon (Acid)
Impregnated (acid) activated carbon is a specialized form of activated carbon that has been treated with certain chemicals, typically acids, to enhance its adsorption properties for specific contaminants. This type of activated carbon retains the high surface area and porosity characteristic of coconut shell-based activated carbon but includes additional chemical properties due to the impregnation process. Its ability to target specific contaminants, particularly acidic gases and heavy metals makes it valuable in industrial, environmental, medical, and chemical processing applications.
3 Pillars (Private) Limited
Catalytic activated carbon
Catalytic activated carbon is a specialized form of activated carbon that is treated or impregnated with catalysts to enhance its ability to promote chemical reactions. This type of activated carbon retains the high surface area and porosity of coconut shell-based activated carbon but is optimized for catalytic applications. Its ability to promote specific chemical reactions makes it valuable in industrial processes, energy production, environmental protection, and advanced water and air treatment technologies.
3 Pillars (Private) Limited
Available standard mesh sizes
| 4 x 8 | 8 x 16 | 30 x 60 |
| 4 x 10 | 8 x 30 | -200 |
| 6 x 12 | 12 x 40 | 80 x 325 |
Activity range: 40 – 100 CTC
* Custom sizes can be produced on request