Coal-based carbon for wastewater
Activated Carbon for Wastewater Treatment: Granular Coal-Based Grade for Color and COD Reduction
Granular coal-based activated carbon helps wastewater treatment plants reduce colour, COD and dissolved organic load in packed beds and filters. Its hard, dense grains suit backwashing, while a developed pore structure adsorbs colour bodies and residual organics. Batch samples are confirmed against references such as iodine value of at least 900 mg/g before quotation. As effluent chemistry, contact time and mesh affect performance, share your water analysis, target COD and flow for a specification review.
Granular grade for color and COD reduction; review specifications with our team before quotation.
- Iodine value
- 500 – 1100 mg/g
- Methylene blue adsorption
- ≥ 90 mg/g
- Hardness
- ≥ 90 %
DESCRIPTION
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Coal-based granular activated carbon is a practical choice when wastewater treatment must reduce colour and chemical oxygen demand (COD) in a continuous or batch process. Its hard, dense grains suit packed beds and filters that face backwashing and repeated handling. It is offered for wastewater polishing, decolourisation and removal of dissolved organic matter, with batch values agreed before quotation.
How the carbon works
Activated carbon removes dissolved organic compounds by adsorption: molecules leave the water and bind to the internal pore surface. A well-developed pore structure and high surface area provide more adsorption sites, which is why these figures matter when comparing grades. Colour bodies, some surfactants, residual dyes and organic by-products are typical targets; heavy metals, salts and many inorganic ions usually need a different treatment step, so the grade should be chosen against the actual effluent analysis.
Selection considerations
Adsorption capacity: iodine value and methylene blue adsorption indicate micropore and mesopore behaviour.
Contact time and filter design: sufficient bed depth and residence time are needed; particle size affects pressure drop and backwashing.
Water chemistry: pH, suspended solids and competing organics influence service life; pre-filtration is often advisable where solids are high.
Hardness and density: these affect attrition losses and bed stability during backwashing or regeneration.
Inquiry information
To discuss a suitable grade, share the effluent source, target colour or COD value, flow rate or batch volume, available contact time, preferred particle size and quantity under consideration. This lets the application and required specification be checked together, and any documents or batch data confirmed before an order. Pricing, availability and delivery are confirmed in writing after that review.
SPECIFICATIONS
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The table lists reference ranges for this granular coal-based grade; exact batch values are confirmed before quotation.
| Iodine value | 500 – 1100 mg/g |
|---|---|
| Methylene blue adsorption | ≥ 90 mg/g |
| BET surface area | 650 – 1000 m²/g |
| CTC adsorption | 35 – 95 % |
| Ash content | 8 – 20 % |
| Moisture | ≤ 8 % |
| Hardness | ≥ 90 % |
| Bulk density | 0.5 – 0.65 g/cm³ |
| pH value | 7 – 11 |
| Particle size | 4 – 40 目 |
ADVANTAGES
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Key checks for buyers comparing granular coal-based carbon in wastewater duty.
Granular coal-based carbon for wastewater polishing
A granular coal-based grade suits fixed-bed and filtration duty, where color and COD reduction follow from adsorption contact rather than from a single headline number.
Form matched to beds
OUR COMMITMENTS
Six Reasons Industrial Buyers Trust Sanniu Carbon
The general inquiry-to-order flow, described without fixed prices, stock levels or lead times.
Application review before selection
We first confirm the treatment target, the water or process stream, the required product form and likely operating conditions before discussing a selection direction.
Scope of quoted specifications
We state which series specifications and documents apply to the product offered; batch values and available files are confirmed before the transaction is agreed.
Packing requirements confirmed with the order
Packaging size and moisture-protection needs are checked when the order is confirmed, and both sides rely on the confirmed order information.
Commercial terms verified by staff
Price, available quantity and delivery time are verified by our team and set out in a written quotation or order confirmed by both parties.
Post-delivery follow-up
Questions about use or documentation after delivery are received and followed up through the agreed contact channel.
CREDENTIALS
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ISO 9001:2015
Registrati0n No: 06524Q01338R0S
Certificate of Analysis
B-R2409C3836
Certificate of Analysis
Report No. A2260506150101001
Certificate of Analysis
No. 1621112086
Certificate of Analysis
NO.250100320443888
Certificate of Analysis
NO. 1524070087
PACKAGING
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Packing options for granular carbon, with the final choice and moisture protection confirmed at order stage.
Moisture-protective inner liner
Granular carbon is packed with a moisture-barrier inner liner so the material arrives in the condition required for adsorption duty; the exact liner and bag construction are agreed with the order.
Bag size agreed per order
Bag sizes set at order confirmation
Bag weight is chosen to suit your unloading and dosing arrangements; the confirmed order specifies the packed weight rather than a standing default for every shipment.
Weight confirmed in writing
Damp-route protection discussed at order stage
For humid routes or long transit, additional moisture protection is discussed when the order is confirmed, and any agreed measure is recorded in the order information.
On request
Labels and marks per your instruction
Bag marking and shipping marks follow the identification you provide, with the wording checked against your order details before packing begins.
Per buyer instruction
Unit loads prepared for container loading
Packed units are arranged for container loading according to the confirmed packing plan, keeping handling steps practical at both dispatch and receiving ends.
Loading plan per order
PROCESS
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Our process moves from application review to written confirmation, so the grade and documents match your wastewater duty before any order is placed.
Share the duty and treatment goal
Tell us the waste stream, flow or concentration, target color or COD reduction, and preferred mesh. We review the application before discussing a starting grade.
Agree the grade and mesh
We match the granular coal-based carbon to your duty and confirm the exact mesh screening with you, since the supplied range alone does not fix a single size.
Confirm specifications and files
We state the applicable specification and material scope, then confirm batch values and available documents before the transaction. Series reference values are not batch results.
Check packaging and moisture protection
At order confirmation we review packaging format and moisture-control needs, so the delivered carbon arrives in the condition you specified.
Recheck price, quantity and lead time
Price, available quantity and lead time are verified by our team and stated in the written quotation or order, not assumed from this page.
Follow up after delivery
Use the agreed contact channel for questions about handling or documents after delivery, and our team will follow up with you.
DIMENSIONS
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Granular coal-based activated carbon suits wastewater polishing where color, COD and dissolved organics must be reduced before discharge or reuse.
Product form
Granular activated carbon
Granular media for fixed-bed adsorption and filtration. Compare particle size, pressure drop and handling needs.
Application
Water treatment
Activated carbon selection for water polishing, colour and odour control. Share the water analysis and treatment targets.
FAQ
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Questions buyers ask before specifying granular coal-based activated carbon for wastewater color and COD reduction.
What does granular coal-based activated carbon remove from wastewater?
It is used to reduce color, COD, odor and dissolved organic load in wastewater. The iodine value of 500–1,100 mg/g and methylene blue adsorption of 90 mg/g or higher indicate the adsorption capacity range of this coal-based series. Actual performance depends on the effluent, contact time and dosing, so confirm the batch specification and test the sample before design.
How do I choose the right mesh size for my wastewater process?
Particle size affects pressure drop, backwash behavior and contact efficiency. This series is offered at 4–40 mesh, and the exact screening is agreed per order. Fixed beds usually benefit from a coarser cut, while finer grades may suit slurry or short-contact polishing. Share your vessel type, flow rate and allowable pressure drop so the grade and mesh can be matched.
What information should I send with my wastewater inquiry?
Please state the treated medium, flow rate or concentration, target figures such as color or COD, required particle size, and purchase quantity. We first check the use case and product form, then discuss a selection direction and explain the scope of the quoted specification and documents. Pricing, available quantity and delivery date are confirmed by a written quotation or order.
Which parameters should be confirmed before quotation?
The specification plan gives series reference values: iodine value 500–1,100 mg/g, methylene blue adsorption at least 90 mg/g, BET surface area 650–1,000 m²/g, CTC 35–95%, ash 8–20%, moisture at most 8%, hardness at least 90%, bulk density 0.5–0.65 g/cm³ and pH 7–11. These are reference ranges, not a batch guarantee. Batch values and available documents are confirmed before quotation.
How is the product packed for shipment?
Packaging is agreed at order confirmation, together with moisture-protection requirements. Uniform bags or bulk options can be discussed according to the handling and storage conditions at your site. Please note the discharge point and storage environment in your inquiry so the packaging specification can be confirmed with the quotation and order information.
Can the activated carbon be evaluated on my own wastewater?
Yes. Evaluate with a sample of your actual effluent rather than a synthetic solution where possible. A small trial can compare grades, mesh sizes and contact times, then the results are reviewed with our technical contact. Sample quantity, freight arrangements and the applicable documents are confirmed case by case; no fixed performance result is promised in advance.