Factory-direct activated carbon from our production base in Shizuishan, Ningxia
Municipal & Industrial Liquid Phase
Select GAC or PAC by water source, target contaminant, contact time, filtration equipment and required quality documentation.
Recommended carbon
Coal based or coconut shell GAC for fixed beds; PAC for dosing and emergency treatment
Granular · GAC
Hard coconut shell GAC for water, air and precious-metal recovery systems, supplied in common mesh ranges with batch-specific quality confirmation.
Selected coconut shell · steam activated
8x30, 12x40, 20x50 mesh
Granular · GAC
Coal based GAC with configurable mesh, iodine value, CTC, hardness and washing options for industrial filtration and adsorption beds.
Anthracite, bituminous coal or a selected blend
8x30, 12x40 mesh
Powdered · PAC
Wood based PAC with configurable fineness, methylene blue, pH, ash and filtration properties for liquid-phase dosing and decolorization.
Wood chips, sawdust or wood charcoal
200 or 325 meshGrade matching
Review the target contaminants, carbon grade, sizing and test requirements together.
Reference grades are comparison directions, not a guarantee of interchangeability. Confirm the required specification and application testing before substitution.
Specification
The reference ranges most RFQs start from, before process conditions narrow them down.
| Primary sourcing direction | Coal based or coconut shell GAC for fixed beds; PAC for dosing and emergency treatment |
|---|---|
| Common GAC mesh | 8x30, 12x40 or 20x40 mesh are common directions; vessel design controls the final range |
| Iodine value | Coconut shell GAC: typically 950-1,100 mg/g; coal based GAC: typically 800-1,050 mg/g |
| Hardness | Typically >=90%; higher-hardness directions can be reviewed for backwash and repeated handling |
| Moisture | Typically <=5% |
| pH | Typically 8-11; washed or acid-washed grades are specified separately |
| Application-specific checks | Target-contaminant testing, dechlorination, acid-soluble matter, iron and leachables as required |
Drinking-water suitability and compliance documents are grade- and destination-specific. They must be confirmed for the actual product rather than inferred from a general water-treatment label.
Water-treatment system reference. Final media and vessel suitability depend on the water analysis and operating conditions.
Activated carbon selection for water treatment starts with the water chemistry and treatment objective. GAC is normally reviewed for fixed beds and polishing, while PAC suits batch dosing or temporary treatment. Mesh, contact time, backwash conditions, leachables and required documents must be confirmed together.
Match GAC mesh, hardness and pressure drop to the vessel internals, empty-bed contact time and backwash conditions.
Review the source-water analysis, target compounds, dechlorination duty and destination-specific documents.
Qualify carbon against residual organics, competing contaminants, discharge targets and the planned replacement strategy.
Select PAC through representative-water tests that compare dose, contact time, separation method and treatment target.
System design
Confirm these reference conditions against the actual process and equipment.
Empty Bed Contact Time (EBCT)
3–20 min
Superficial Filtration Velocity
8 – 25 m/hr
Typical Carbon Bed Depth
1.0 – 3.0 meters
Backwash Bed Expansion
20% – 35%
Influent Suspended Solids Limit
< 5 mg/L TSS
Wash & Purity Options
Standard water-washed
Published design practice for sourcing reference, not a guarantee for a specific system.
Grade review
Water source and analysis, target contaminant, flow rate, vessel size, empty-bed contact time, backwash condition, target mesh, replacement cycle, quantity and destination.
Process factors to specify
Recommended qualification path
FAQ
Coal based GAC offers a broad pore structure for many industrial water applications. Coconut shell GAC is often selected when hardness, micropore adsorption and clean handling are priorities. Water analysis and system design should decide the grade.
No. Mesh, hardness, ash, pH, contact time, target contaminant, dechlorination behavior and application testing can be equally important.
Yes. Standard samples are normally free, with international courier paid by the buyer. Share the intended test method and required quantity first.
Technical library
· Water Treatment Engineering
Compare bituminous coal vs. coconut shell granular activated carbon (GAC) across IUPAC pore distribution, humic DOC fouling resistance, 8x30 vs. 12x40 mesh backwash hydraulics, and ASTM/AWWA specifications for municipal PFAS and TOC control.
· Water Treatment
For B2B buyers specifying an activated carbon water filter, the media is only one part of the system. This guide connects water source, GAC/PAC/carbon block fit, EBCT, pressure drop, QC indexes, and RFQ details so inquiries are clearer.
· Product Selection
A PAC-focused selection resource for buyers evaluating powdered activated carbon by dosing method, particle behavior, downstream separation, handling, SDS, packaging, and quote inputs.
Related sectors
Pellet activated carbon for controlled pressure drop in VOC and odor beds; granular carbon where the equipment and vapor duty favor GAC
Pellet or granular carbon for physical adsorption; selected impregnated grades for contaminant-specific chemisorption
High-hardness coconut shell GAC in a mesh range matched to the circuit screens and carbon-transfer equipment
Wood based PAC, commonly 200 or 325 mesh, qualified by actual-liquid decolorization and filtration testing
Quick factory inquiry
Share the product, target index, quantity and application. Standard inquiries normally receive a reply within 24 hours on business days.
Enter your business email to open the printable technical sheet and illustrative test values. Request a dated, batch-specific COA separately for order acceptance.
