Activated Carbon (Coconut, Coal, Wood and Lignite based)

Air & Water Treatment using Activated Carbon

Below is a quick reference table summarizing a subset of available Activated Carbon products and common application scenarios for each

Water Treatment (Liquid Phase)
Model	Buy Now	Activated Carbon Type	Common Usage Scenarios
LGAC8x16		Virgin Coal Base GAC 8x16 Mesh	Liquid phase applications requiring quick adsorption times
LGAC8x30		Virgin Coal Base GAC 8x30 Mesh	Liquid phase applications requiring quick adsorption times
LGAC8x16AW		Acid Washed Coal Base GAC 8x16 Mesh	Liquid phase applications requiring quick adsorption times
LGAC8x30AW		Acid Washed Coal Base GAC 8x30 Mesh	Liquid phase applications requiring quick adsorption times
LGAC12x30		Virgin Coal Base GAC 12x30 Mesh	Wastewater treatment, groundwater remediation, chemical purification, food grade applications, pharmaceutical, and potable water treatment
LGAC12x40		Virgin Coal Base GAC 12x40 Mesh	Wastewater treatment, groundwater remediation, chemical purification, food grade applications, pharmaceutical, and potable water treatment
LGAC12x30AW		Acid Washed Coal Base GAC 12x30 Mesh	Applications where superior kinetic properties are required including removal of low concentrations of normally poorly adsorbed organics from groundwater and wastewaters
LGAC12x40AW		Acid Washed Coal Base GAC 12x40 Mesh	Applications where superior kinetic properties are required including removal of low concentrations of normally poorly adsorbed organics from groundwater and wastewaters
LCGAC8x16		Virgin Coconut Shell GAC 8x16 Mesh	Applications where superior kinetic properties are required including removal of low concentrations of normally poorly adsorbed organics from groundwater and wastewaters
LCGAC8x30		Virgin Coconut Shell GAC 8x30 Mesh	Applications where superior kinetic properties are required including removal of low concentrations of normally poorly adsorbed organics from groundwater and wastewaters
LCGAC8x16AW		Acid Washed Coconut Shell GAC 8x16 Mesh	Ideal for many liquid phase applications including the removal of organics from water streams, cleaner then most other carbons
LCGAC8x30AW		Acid Washed Coconut Shell GAC 8x30 Mesh	Ideal for many liquid phase applications including the removal of organics from water streams, cleaner then most other carbons
LCGAC12x30		Virgin Coconut Shell GAC 12x30 Mesh	Wastewater treatment, groundwater remediation, chemical purification, food grade applications, pharmaceutical, and potable water treatment
LCGAC12x40		Virgin Coconut Shell GAC 12x40 Mesh	Wastewater treatment, groundwater remediation, chemical purification, food grade applications, pharmaceutical, and potable water treatment
LCGAC12x30AW		Acid Washed Coconut Shell GAC 12x30 Mesh	Ideal for many liquid phase applications including the removal of organics from water streams, cleaner then most other carbons
LCGAC12x40AW		Acid Washed Coconut Shell GAC 12x40 Mesh	Ideal for many liquid phase applications including the removal of organics from water streams, cleaner then most other carbons
Air Treatment (Vapor Phase)
Model	Buy Now	Activated Carbon Type	Common Usage Scenarios
VGAC4x8		Virgin Coal Base GAC 4 x 8 Mesh	Solvent recovery, odor control, tank vent absorbers, HVAC, VOC control, Soil Vapor Extraction, Air Stripper
VGAC4x8AW		Acid Washed Granular Coal Base Activated Carbon 4x8 Mesh	Solvent recovery, odor control, tank vent absorbers, HVAC, VOC control, Soil Vapor Extraction, Air Stripper
VGAC6x12		Virgin Coal Base GAC 6 x 12 Mesh	High activity and surface area make it ideal for most vapor phase applications including general odor removal and the adsorption of organic contaminants from vapor streams
VPAC3		Virgin Coal Base PAC 3.0mm Mesh	Perfect for solvent recovery or other vapor phase projects wherein pressure drop may be a concern
VPAC4		Virgin Coal Base PAC 4.0mm Mesh	Perfect for solvent recovery or other vapor phase projects wherein pressure drop may be a concern
VKOH		Potassium Hydroxide Impregnated 4mm Pelletized Coal Base Activated Carbon	Specially impregnated for the desulphurization of gases and the removal of all acidic contaminants such as hydrogen sulfide, hydrogen chloride, and mercaptans
V-Sulphur		Sulfur Impregnated 4mm Pelletized Coal Base Activated Carbon	Designed to remove mercury vapor steams
VCGAC		Virgin Coconut Shell GAC 4 x 8 Mesh	Ideal for HVAC and Odor Control applications
VCGAC4x8AW		4x8 Acid Washed Coconut Shell Activated Carbon	Ideal for HVAC and Odor Control applications

Adsorption parameters of Activated Carbon

Pore Size
Correct pore size distribution is necessary to facilitate the adsorption process by providing adsorption sites and the appropriate channels to transport the adsorbate. Activated Carbon Pores can be divided into three general sizes:

• Micro-pores (diameter in the range of less than 2nm)
• Meso-pores (diameter in the range of 2 – 25 nm)
• Macro-pores (diameter in the range of above 25 nm)

Hardness / Abrasion Number
Measure of activated carbon's resistance to attrition. This is an important indicator of activated carbon to maintain its physical integrity and withstand frictional forces imposed by backwashing etc.

Ash Content
Reduces overall activity of activated carbon. Reduces efficiency of reactivation. Metals (Fe203) can leach out of activated carbon resulting in discoloration. Acid/water soluble ash content is more significant than total ash content.

Apparent Density
Higher density provides greater volume activity and normally indicates better quality activated carbon.

Iodine Number
The Iodine number is the most fundamental parameter used to characterize activated carbon performance, measure activity level (higher number indicates higher degree of activation) and measure the micropore (0-20 Å) content. This number is equivalent to the surface area of activated carbon in sq m/g between 900 - 1100. The iodine number is also the standard measure for liquid phase applications

Activated Carbon properties at a glance
Property	Coconut	Coal	Lignite	Wood (Powder)
Micro-pores (diameter range less than 2nm)	High	High	Medium	Low
Macro-pores (diameter range above 25 nm)	Low	Medium	High	High
Hardness	High	High	Low	n/a
Ash	5%	10%	20%	5%
Water Soluble Ash	High	Low	High	Medium
Dust Reactivation	Good	Good	Poor	None
Apparent Density	0.48 g/cc	0.48 g/cc	0.4 g/cc	0.35 g/cc
Iodine No.	1100	1000	600	1000

Activated Carbon | Aeration | Air Treatment | Bag Filters & Housings| Chemicals | Dissolved Air Flotation | Dust Collection | Evaporators | Filter Presses | Flocculation | Inline Filter Vessels | Membrane Filtration | Odor Control |Ozone | Oil Water Separators | Sewage Systems | Liquid and Vapor Phase Vessels | Wet Scrubbers