Factory-direct activated carbon from our production base in Shizuishan, Ningxia
Technical library
Practical engineering guides, ASTM parameter comparisons, brand cross-reference tables, and sourcing checklists for bulk activated carbon buyers.
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Latest
Recent engineering and buying references from the DXD Carbon library.
Latest guide
· Water Treatment Engineering · 10 min read
Engineering comparison of HCl acid-washed versus standard unwashed coconut shell granular activated carbon (GAC) for controlling initial pH 9.5–11.0 excursions, carbonate scaling, trace arsenic elution, and startup flush volumes.
· ASTM Lab Standards & QC
Engineering crosswalk comparing Chinese GB/T 7702 (coal) and GB/T 12496 (wood and coconut shell) activated carbon test methods against ASTM D4607, D3802, D3467, and D2866 for B2B COA audits.
· Brand Cross-Reference & Sourcing
Technical specification crosswalk translating AquaSorb 1000/2000/CS water GAC, EcoSorb GX and AddSorb Sulfox pellets, GoldSorb 5500/6000 gold carbon, and ColorSorb 620/G5 decolorization PAC into ASTM and AWWA COA limits.
· Brand Cross-Reference & Sourcing
Engineering crosswalk translating Filtrasorb 300/400 bituminous coal GAC, OLC 12x40 acid-washed coconut GAC, AP4-60 extruded pellets, GRC-22 gold carbon, and WPH/Cane Cal PAC into ASTM COA limits for direct-kiln FCL sourcing.
All guides
Newest first within each topic. Each topic links to the application guide or tool it supports.
GAC and PAC for drinking, surface and process water: raw material, mesh, contact time and filter fit.
Pellet diameter, CTC activity and pressure drop for VOC, odor and process-gas beds.
Hardness, mesh retention and adsorption kinetics for CIL, CIP and CIC circuits.
Powdered carbon for food, fine-chemical and other process liquids: color indexes, dosing and filtration.
How activated carbon works, how GAC, PAC and pellets differ, and what each COA test measures.
Cross-reference named grades, shortlist suppliers and prepare bulk RFQs.
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Review the application, compare product data, then prepare the documents for your RFQ.
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Enter your business email to open the printable technical sheet and illustrative test values. Request a dated, batch-specific COA separately for order acceptance.
