Granular Activated Carbon
What Is Granular Activated Carbon?
Granular activated carbon (GAC) is an activated carbon that has a wide variety of applications and has an uneven or even grain diameter, usually between 0.2 and 5 mm. It is made from a wide variety of raw materials—including coal, coconut shells, timber, and other carbon-rich feedstocks—by means of controlled carbonation and vapor or chemical activation processes that create an extensive web of micropores, mesopores, and macropores in every carbon grain.
Contrary to PAC, which is injected directly into the process stream, PAC is mainly used in fixed-bed sorption containers, filtration towers, and packaged-bed systems in which the water or gas to be handled is constantly moved across a fixed carbon bed. Such a structure permits prolonged, continuous contact with the carbon surface, which can be maintained at high efficiency for long operating periods. Granular activated carbon beds are usually capable of thermal or chemical regeneration and are reused several times prior to the need for replacement, thus providing a highly cost-effective long-term solution for continuing therapy.
Why Choose Granular Activated Carbon?
- Continuous, Long-Cycle Treatment Performance — Granular activated carbon fixed-bed systems run uninterrupted for a prolonged period of time, providing a uniform level of pollutant elimination over a high volume flow rate—thus becoming a first choice for urban wastewater treatment facilities, industrial wastewater systems, and large-scale air cleaning facilities.
- Regenerable and Cost-Efficient Over Time — Spent GAC is capable of thermal reactivation and reuse several times, substantially cutting down on the long-term CO₂ emissions and minimizing the production of waste as opposed to single-use sorbent substitutes.
- Low Pressure Drop for High-Flow Applications — Granular Grain Architecture permits the passage of a treated liquid with minimum resistance across the Carbon Bed, which can support a high throughput rate while not consuming too much power or pumping in a large scale system.
- Versatile Raw Material and Grade Options — Available in coal, cod-shell, and wood-based variations over a variety of grid sizes and iodine levels, GAC can be accurately defined to meet the desired pollutant distribution, the flow conditions, and the industry's specific regulation.
- Proven Across the Most Demanding Applications — GAC is one of the most widely verified active carbon forms currently available in industry, with a wide range of worldwide achievements in the field of drinking water removal, ground water remediation, VOC pollution control, food and drink handling, as well as drug cleaning.
Industry Challenges About Granular Activated Carbon
Gradual Adsorption Capacity Decline
Biological Fouling in Water Treatment
Limited Effectiveness Against Certain Contaminants
Channeling Risk in Fixed-Bed Systems
Why Use Our Granular Activated Carbon
High Mechanical Hardness & Attrition Resistance
GAC's hard grain architecture can withstand the physical pressures of running continuously, back washing, and repeatedly regenerating cycles – to minimise the production of carbon dioxide and to preserve the integrity of the bed for prolonged use.
Excellent Regeneration Capability
Different from PAC, Granular activated carbon is capable of thermal regeneration and reutilization several times, greatly cutting down on the long term material consumption and the overall property cost of high volume processing.
Broad-Spectrum Contaminant Removal
GAC is effective in adsorption of organic matter, residual chlorine, VOCs, odour, taste - inducing materials, and many other industrial micro-pollutants in liquid and gas phase.
Related Applications
Industry Solutions
Packaging & Logistics Services
Secure & Customizable Packaging
The products shall be enclosed in a durable, moistureproof pouch or bulk container, so as to guarantee the cleanliness and completeness of transportation. Customized packing options for special size and handling needs.
Reliable & Flexible Global Shipping
Working with reliable logistic partners, we provide a flexible delivery system for maritime, aerial and land-based cargo. Prompt delivery and safe transport to worldwide destinations.
Dedicated Order & Support Coordination
We offer special support for tracking and documenting from the order validation to the last shipment. Availability of technical and logistical support to guarantee the success of the supply chain experience.
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