1.1 Raw Materials and Process Characteristics

• 1.2 Core Physical and Performance Characteristics

  • Well-developed pore structure: The ratio of micropores to mesopores is reasonable, with a specific surface area as high as 900-1500㎡/g. The unit adsorption area is far larger than that of ordinary activated carbon, resulting in a large adsorption capacity and fast adsorption speed, which can complete the adsorption of pollutants in a short time.
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  • High mechanical strength: The particles are wear-resistant, anti-extrusion, not easy to pulverize, and have a long service life. During operation, it will not produce a large amount of carbon powder to block pipelines and filter elements, reducing the frequency of equipment maintenance, and is suitable for various adsorption devices such as fixed beds and fluidized beds.
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  • Strong adsorption selectivity: It has a strong adsorption effect on residual chlorine, organic matter, off-colors and off-odors, and heavy metal ions in water; formaldehyde, benzene series, sulfides, and odorous gases in the air; as well as pigments and impurities in food liquids. At the same time, it can retain the beneficial components in water and gas.
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  • Renewable and reusable: After adsorption saturation, it can be regenerated through processes such as high-temperature steam and acid washing to restore its adsorption performance, significantly reducing the use cost. It is economical and environmentally friendly, meeting the requirements of circular economy.
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  • Stable physical and chemical properties: Odorless and tasteless, insoluble in water and organic solvents, resistant to acids, alkalis and high temperatures, with stable chemical properties. It will not release harmful substances during use and is suitable for working environments with different pH levels and temperatures.
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  • Low ash content and low impurities: The refining process removes ash and impurities from raw materials, resulting in an extremely low content of water-soluble substances, avoiding secondary pollution. It is especially suitable for scenarios with high purity requirements such as drinking water, food, and pharmaceuticals.

  1.3 Advantages compared with other types of activated carbon

  Types of activated carbon	Raw materials	Core Advantages	Core shortcomings	Applicable scenarios
  coconut shell activated carbon	Natural coconut shell	High strength, well-developed micropores, high adsorption value, low ash content, and recyclability	Raw material cost is slightly higher	Drinking water purification, food refining, air purification, high-end water treatment
  coal-based activated carbon	raw coal	Low cost and large output	High ash content, easy to pulverize, low adsorption value, and risk of heavy metal residues	Industrial sewage treatment, low-end waste gas treatment
  wood-based activated carbon	wood chips, fruit wood	Well-developed mesopores and good decolorization effect	Low strength, easy to break, short service life	Food decolorization, low-end water purification

  II. Product Specification Parameters (Regular Model + Customized Model)

  The specifications of coconut shell activated carbon are divided by particle size, adsorption performance, and application. They can be customized according to the actual working conditions of customers. The following are the general conventional parameters in the industry, covering most application scenarios:

  2.1 Particle Size Specification (Mesh Size/Particle Diameter)

  • Coarse particles: 4-8 mesh (2.36-4.75mm), 6-12 mesh (1.4-2.36mm), suitable for large water treatment filter tanks, industrial fixed beds, and gold extraction
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  • Medium particles: 8-16 mesh (1.0-2.0mm), 10-20 mesh (0.8-1.8mm), 12-20 mesh (0.9-1.7mm), suitable for household water purifiers, central water purifiers, and small water treatment equipment
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  • Fine particles: 20-40 mesh (0.42-0.85mm), 20-50 mesh (0.3-0.85mm), suitable for air purification, solvent recovery, and food refinement
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  • Special particle sizes: Ultra-fine particles such as 30-60 mesh and 40-80 mesh can be customized on demand, suitable for special catalytic carriers and high-precision filtration scenarios
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  2.2 Core Physicochemical Technical Parameters

  Testing Items	Regular water purification grade	High-end drinking water grade	Gas phase adsorption grade	Food and pharmaceutical grade
  Iodine adsorption value (mg/g)	≥900	≥1050-1250	≥950	≥1100
  Methylene blue adsorption value (mg/g)	≥135	≥160-190	≥150	≥180
  Carbon tetrachloride adsorption rate (%)	≥55	≥65	≥60-75	≥60
  Strength (%)	≥95	≥96	≥95	≥97
  Apparent density (g/mL)	0.45-0.55	0.43-0.52	0.42-0.53	0.44-0.54
  Moisture (%)	≤5.0	≤4.0	≤5.0	≤3.0
  Ash content (%)	≤5.0	≤3.0	≤4.0	≤2.5
  pH value	6.0-9.0	6.5-7.5	7.0-9.0	6.5-8.0
  Floating rate (%)	≤5.0	≤3.0	≤4.0	≤2.0
  Water-soluble substances (%)	≤0.5	≤0.3	≤0.4	≤0.2
  Specific surface area (㎡/g)	900-1100	1100-1300	1000-1200	1200-1500

  2.3 Heavy Metal Limit Indicators (Exclusive to Food/Drinking Water Grade)

  Suitable for scenarios with high safety requirements such as drinking water, food, and pharmaceuticals, with strict control over heavy metal content, complying with national and industry hygiene standards:

  
  

  • Arsenic（As）≤10ppb
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  • Lead（Pb）≤20ppb
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  • Iron（Fe）≤200ppb
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  • Manganese（Mn）（Mn）≤50ppb
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  • Cadmium（Cd）（Cd）≤1ppb
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  • Mercury（Hg）≤0.1ppb

  • III. Product Quality Standards and Inspection Specifications

    3.1 Implementation Standards

    • Group Standard: T/CI 338-2024 "Coconut Shell Activated Carbon"
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    • National Standard: GB/T 12496 Series "Test Methods for Wooden Activated Carbon"
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    • Drinking water hygiene standards: GB 5749-2022 "Standards for Drinking Water Quality"
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    • Food additive standards: GB 2760-2014 "National Food Safety Standard for the Use of Food Additives"

    • 3.2 Classification of Quality Grades

      According to the group standard T/CI 338-2024, coconut shell activated carbon is divided into two major categories based on its use: those for liquid phase adsorption and those for gas phase adsorption. Each category is further divided into Grade 1 and Grade 2 products. The specific grade indicators are as follows:

      3.2.1 Grade Standards for Coconut Shell Activated Carbon for Liquid Phase Adsorption

      Testing items	Grade 1 product	Grade 2 product
      Iodine adsorption value (mg/g)	≥900	≥800
      Methylene blue adsorption value (mg/g)	≥135	≥105
      Strength (%)	≥95	≥90
      Ash content (%)	≤5.0	≤6.0

      3.2.2 Grade Standards for Coconut Shell Activated Carbon for Gas Phase Adsorption

      Testing items	Grade 1 product	Grade 2 product
      Toluene adsorption rate (mg/g)	≥300	≥220
      Carbon tetrachloride adsorption rate (%)	≥60	≥50
      Iodine adsorption value (mg/g)	≥900	≥800
      Strength (%)	≥95	≥90

      3.3 Inspection Rules

      • Factory inspection: Before leaving the factory, each batch of products must undergo tests on appearance, odor, iodine adsorption value, strength, moisture content, particle size, and apparent density. Only qualified products can leave the factory.
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      • Type inspection: For normal production, it should be carried out no less than twice a year. A full inspection must be conducted when raw materials or processes change, or after production resumes following a shutdown, to ensure stable product quality.
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      • Sampling and Judgment: Products of the same batch and same process form an inspection lot, and sampling is conducted according to standards; if one indicator is unqualified, double sampling for re-inspection shall be carried out, and if the re-inspection is still unqualified, the batch shall be judged as unqualified products.

      3.4 Appearance and Sensory Standards

      • Appearance: Black irregular broken particles, uniform color, no obvious impurities, agglomerates, or foreign objects
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      • Odor: Odorless, tasteless, no pungent chemical odor
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      • Particle size: The particles are uniform, the content of broken powder meets the requirements of the corresponding specifications, and there is no large amount of fine powder.

      • IV. Core Uses and Applicable Scenarios of the Product

        Coconut shell activated carbon, with its excellent performance, covers multiple fields such as water treatment, air purification, food and medicine, chemical engineering and environmental protection, and gold extraction. The specific subdivided scenarios are as follows:

        4.1 Water Treatment Field (The Core Application)

        • Drinking water purification: household water purifiers, central water purifiers, production of barreled/bottled water, advanced treatment in waterworks, removing residual chlorine, off-colors and off-odors, organic substances, heavy metals, and pesticide residues, improving water quality and taste.
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        • Industrial water treatment: preparation of ultrapure water in the electronics industry, purified water in the pharmaceutical industry, treatment of heavy metals in electroplating wastewater, decolorization and deodorization of chemical wastewater, purification of printing and dyeing wastewater, and descaling and deodorization of circulating cooling water.
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        • Special water treatment: swimming pool water purification, aquarium water quality maintenance, fluorine removal and arsenic removal from groundwater, meeting high-standard water quality requirements.
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        4.2 Air Purification and Gas Phase Adsorption

        • Indoor air purification: removal of formaldehyde and benzene series in new houses, elimination of decoration odors, cooking fumes, pet odors, and smoke odors, suitable for air purifiers, activated carbon packs, and fresh air system filters.
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        • Industrial waste gas treatment: adsorption of VOCs waste gas from chemical plants, printing plants, leather factories, and painting booths; desulfurization and denitrification; removal of odorous gases such as hydrogen sulfide and ammonia.
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        • Special gas phase applications: gas mask canisters, cigarette filters, refrigerator deodorization, automobile interior deodorization, solvent recovery (gasoline, acetone, ethanol, toluene, etc.).
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        4.3 Food and Pharmaceutical Industry

        • Food refinement: decolorization and deodorization of alcoholic beverages, purification of beverages, decolorization of sugars, refinement of monosodium glutamate, purification of citric acid, removal of impurities from edible oils, improving food purity and taste.
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        • Pharmaceutical field: decolorization of pharmaceuticals, purification of injections, purification of pharmaceutical intermediates, removal of impurities and pyrogens, in line with pharmaceutical and health standards.
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        4.4 Other High-end Application Scenarios

        • Gold extraction: Gold extraction by carbon-in-pulp method and heap leaching method, which can adsorb gold ions, with large adsorption capacity, easy desorption and high strength, improving gold recovery rate.
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        • Catalyst carrier: Catalyst carrier in the chemical industry, used in vinylon production and vinyl acetate synthesis. Its pore structure is suitable for catalyst loading, and the catalytic efficiency is high.
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        • Soil improvement: Adsorb heavy metals and harmful substances in the soil, improve soil permeability, and contribute to ecological restoration.
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        • V. Multi-dimensional Real-shot Display Description of the Product

          To intuitively present the overall picture of the product, supporting multi-dimensional real-shot pictures are provided to comprehensively display product details, packaging, and usage scenarios, facilitating customers in product selection and acceptance:

          5.1 Real-shot pictures of product details

          • Close-up image of particles: showing the morphology of black irregular particles, particle size, and uniformity of color and luster, clearly presenting the pore structure on the particle surface, and distinguishing the particle differences between products of different mesh sizes.
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          • Enlarged detail image: Macro photography of the particle surface, showing the dense fiber structure, high-quality state with no impurities and no crumbs, in contrast to the rough texture of ordinary activated carbon.
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          • Dry-wet comparison chart: showing the states of dry carbon and wet carbon, reflecting the product's characteristics of not pulverizing, not caking when exposed to water, and having a fast sedimentation speed, suitable for water treatment scenarios.
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          5.2 Actual Photos of Product Packaging

          • Regular packaging: 25kg woven bags (with inner waterproof PE film), ton bags. It shows the sealing performance of the packaging and the labeling information (product name, specification, grade, production date, batch number, execution standard, manufacturer).
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          • Small packaging: 1kg/5kg small household bags, vacuum packaging, suitable for retail and household scenarios, demonstrating the moisture-proof and portable characteristics of the packaging.
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          • Custom packaging: Food-grade and pharmaceutical-grade special packaging can be customized according to needs, demonstrating the compliance and professionalism of the packaging.
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          • 5.3 Actual Comparison Photos of Products

          
          

          Comparison chart of coconut shell activated carbon with coal-based and wood-based activated carbons, which intuitively shows the differences in particle hardness, color, and impurity content, highlighting the high-quality characteristics of coconut shell activated carbon.

          
          

          

          VI. Packaging, Transportation and Storage Specifications

          6.1 Packaging Specifications

          The inner layer is made of food-grade PE sealing film, which is moisture-proof and waterproof; the outer layer is made of woven bags, container bags, or wooden barrels, which are strong and wear-resistant to prevent breakage and carbon leakage during transportation; product information is clearly marked on the outside of the packaging, and exclusive packaging can be customized according to needs.

          6.2 Transportation Specifications

          During transportation, avoid exposure to rain and sunlight, handle with care during loading and unloading, strictly prohibit dragging with iron hooks, and forbid mixing with hard substances, toxic and harmful substances, and odorous substances to prevent particle breakage, moisture, and contamination.

          6.3 Storage Specifications

          Store in a dry, ventilated, and cool warehouse, away from fire sources and heat sources, and avoid moisture; for temporary outdoor storage, it is necessary to lay a backing plate and cover with a rainproof awning cloth. It is strictly prohibited to store together with chemical reagents and odorous substances to prevent absorption of odors, moisture, and loss of effectiveness.

          VII. Usage Precautions

          • No need to clean before use. If pre-treatment is required, rinse quickly with clean water. Avoid prolonged soaking to prevent clogging of the pores.
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          • It is strictly prohibited to come into contact with tar-like and sticky substances to avoid clogging the pores of activated carbon and losing its adsorption performance.
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          • Replace or regenerate in a timely manner after adsorption saturation. Regeneration must be operated by professionals to ensure that the adsorption performance after regeneration meets the standards.
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          • Fire prevention during storage and use. Activated carbon is a flammable substance, so avoid contact with high temperatures and open flames.