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GAC-P S Acid-washed High Capacity Coal Granular Carbon – Premium Water Treatment

Drinking water treatment Use High Quality Coal-Granular GAC Type Activated Carbon

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GAC-P S Acid-washed High Capacity Coal Granular Carbon – Premium Water Treatment

GAC-P S is a high-performance acid-washed coal-based granular activated carbon, which combines the high adsorption capacity of high-iodine coal carbon and the low impurity advantage of acid washing process. It is produced from premium bituminous coal through optimized steam activation and precision acid washing treatment, specially designed for high-standard ultra pure water, food processing water and POU/POE drinking water treatment systems.

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Model:
GAC-P S
Brand:
purestar

Product Overview

Manufactured through optimized steam activation and deep acid washing process, GAC-P S granular activated carbon features both high adsorption capacity and ultra-low soluble impurity content. It has a methylene blue adsorption value of over 160 mg/g, showing excellent removal effect on medium molecular organic matter and chroma. The acid washing process effectively reduces soluble ash and mineral impurities, keeps effluent pH stable at 5–8, and avoids secondary pollution to water quality. With high mechanical strength and uniform particle gradation, it is suitable for high-standard fixed-bed filtration systems requiring long-term stable operation.

Specifications

Parameter	GAC-P 830S	GAC-P 1240S	Unit
Iodine adsorption value	> 950	> 950	mg/g
Moisture content	< 10	< 10	%-wt
Methylene blue adsorption value	> 160	> 160	mg/g
pH	5 ~ 8	5 ~ 8	-
Average particle size	1.4 ~ 1.7	1.2 ~ 1.4	mm
Hardness (Strength)	> 90	> 90	%
Specific surface area	> 900	> 900	m²/g
Particle size > 8 mesh (1.70 mm)	< 10	-	%-wt
Particle size > 12 mesh (1.70 mm)	-	< 5	%-wt
Particle size < 30 mesh (0.6 mm)	< 5	-	%-wt
Particle size < 40 mesh (0.43 mm)	-	< 5	%-wt

Available particle size

8×30 Mesh ( 0.6 ~ 2.36 mm)
12×40 Mesh ( 0.43 ~ 1.7 mm)

Packaging

20 kg/bag、500 kg/bag

Key Features

Acid-Washed Purity for Sensitive Water Systems
Multi-stage acid washing removes soluble minerals and residual ash, achieving a stable neutral pH of 5–8. This prevents secondary ionic contamination in ultrapure water loops and beverage production lines where extractable impurities must be strictly controlled.
Enhanced Organic & Color Removal
The developed micro-mesopore structure targets trace organic pollutants, residual chlorine, and color compounds. It ensures stable effluent quality in municipal drinking water plants and beer processing facilities.
High Mechanical Durability
Resists particle attrition under continuous backwashing and hydraulic shock. Low fines generation protects downstream reverse osmosis membranes and mixed-bed ion exchange resins from particulate fouling.
Low Extractable Ash & Mineral Content
Acid-washed processing reduces residual ash compared to standard coal GAC, minimizing conductivity spikes and ionic contamination in semiconductor UPW and pharmaceutical water pretreatment stages.
Food & Beverage Process Water Compatibility
Controlled impurity profile and neutral pH output make it suitable for beer, soft drink, and bottled water treatment applications where taste consistency and product clarity are critical.

Applications

Ultrapure Water Advanced Treatment: Semiconductor, pharmaceutical and laboratory UPW systems cannot tolerate metallic impurities or pH fluctuation. GAC-P S combines high adsorption capacity with acid-washed purity, removing trace organics while maintaining neutral effluent pH — eliminating the trade-off between performance and purity that standard grades force.
POU & POE Drinking Water Purification: Point-of-use and point-of-entry systems for residential and commercial buildings require both high contaminant removal and safety assurance. GAC-P S's neutral pH and low impurity content improve water taste without introducing secondary contamination.
Food & Beverage High-Standard Water: High-end food and beverage production demands water that meets strict taste and safety compliance. GAC-P S's balanced high capacity + low impurity profile ensures product quality stability without the premium cost of coconut shell grades.
Critical Process Water for Sensitive Industries: Precision manufacturing and electronics cleaning processes need water with minimal TOC and extractable metals. GAC-P S's acid-washed formula supports these stringent requirements at a lower total cost than specialty coconut carbons.