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Iodine Value: Generally ranging from 700 to 1000mg/g. The iodine value is an important indicator for measuring the adsorption ability of activated carbon for small molecules. A higher iodine value indicates that this wood-based powdered activated carbon has a stronger adsorption capacity for small molecular substances, such as some small organic molecular pollutants and iodine element.
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Particle Size: The particle size is relatively fine, and most of it can pass through an 80 - 200 mesh sieve (with a particle diameter less than 0.18 - 0.075mm). This fine particle size helps to increase the contact area between the activated carbon and the adsorbate, enabling it to have more sufficient contact with the target substances during the adsorption process and thus improving the adsorption efficiency.
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Specific Surface Area: The specific surface area is usually around 800 - 1500m²/g. The relatively large specific surface area provides abundant sites for adsorption, allowing the activated carbon to accommodate more adsorbates and has a good adsorption effect on impurities, pigments, odors, and other substances in solutions or gases.
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pH Value: The pH value ranges roughly from 4 to 10. This range ensures that it will not have a significant impact on the acidity and alkalinity of the adsorption system in most application scenarios and can stably play its adsorption role.
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Ash Content: The ash content is relatively low, generally between 3% and 8%. Ash mainly consists of inorganic mineral components in wood. A lower ash content means higher purity of the activated carbon, which is beneficial for improving the adsorption performance.
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Drinking Water Purification: It can effectively remove residual chlorine, odors, and chromaticity in water, and also adsorb some heavy metal ions (such as mercury, lead, cadmium, etc.) and organic pollutants (such as pesticide residues, polycyclic aromatic hydrocarbons, etc.), improving the quality and taste of drinking water.
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Sewage Treatment: It is used for treating industrial wastewater and domestic sewage, capable of adsorbing harmful substances such as chemical oxygen demand (COD)-related substances, biochemical oxygen demand (BOD) components, organic dyes, phenols, and cyanides in sewage, helping sewage to meet the emission standards or realize the reuse of reclaimed water.
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Food and Beverage Industry: In processes such as sugar production, winemaking, and fruit juice processing, it is used for decolorization, deodorization, and impurity removal. For example, in the sugar production process, it can adsorb pigments and impurities in sugar liquid to improve the quality of sugar. In winemaking and fruit juice processing, it can remove unpleasant odors and impurities to improve the flavor of products.
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Air Purification: It is used in indoor air purifiers and ventilation systems to adsorb harmful components in the air such as formaldehyde, benzene, TVOC (total volatile organic compounds), odors, and smoke, improving indoor air quality. It can also be applied to industrial waste gas treatment to adsorb and purify harmful gases such as volatile organic compounds (VOCs), hydrogen sulfide, and ammonia in waste gas.
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Gas Masks and Respiratory Protection Equipment: As an adsorbent filled in gas masks and respiratory protection equipment, it effectively adsorbs toxic and harmful gases to ensure the respiratory safety of users.
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Good Adsorption Performance: Thanks to its developed pore structure and large specific surface area, it has high adsorption efficiency and large adsorption capacity for a variety of substances. Whether the adsorbate is in low or high concentration, it can be adsorbed quickly and effectively, achieving a good purification effect in a short time.
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Excellent Dispersibility: Due to its powdery form, it can quickly disperse in liquids or gases and fully contact with the adsorbate. This good dispersibility makes the adsorption process more uniform and efficient, ensuring that the adsorption effect covers the entire adsorption system.
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Renewable and Reusable: After adsorption saturation, through appropriate regeneration methods such as thermal regeneration and chemical regeneration, part of its adsorption performance can be restored and reused cyclically. This not only reduces costs but also reduces resource waste and waste discharge.
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Renewable Raw Material: Using wood as a raw material, and wood is a renewable resource. Compared with some non-renewable raw materials (such as some minerals), it has more sustainability in terms of raw material sources.
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Appearance and Morphology: It appears as a black powder, is fine in texture, and has no fixed shape. This form enables it to be filled in containers or equipment of various shapes and sizes, and it can closely contact with the adsorbate to fully play its adsorption role.
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Pore Structure: It has abundant pores, including micropores, mesopores, and macropores. Micropores (with a pore diameter less than 2nm) are mainly used for adsorbing small molecular substances, such as some small organic molecular pollutants and gas molecules. Mesopores (with a pore diameter between 2 - 50nm) are helpful for the adsorption and diffusion of large molecular substances, such as some large molecular organic dyes. Macropores (with a pore diameter greater than 50nm) play a role in providing channels and reducing fluid resistance, enabling adsorbates to smoothly enter the internal pore network of the activated carbon to form a synergistic adsorption effect.
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Density Characteristics: The bulk density is relatively small, generally ranging from 0.3 to 0.6g/cm³. The small bulk density makes it occupy relatively less space during storage and transportation, and it is also easier to mix evenly with other substances when in use.
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Chemical Stability: Under general chemical environments, it has stable chemical properties and does not react with most common adsorbates. However, under the action of high temperature, strong oxidants (such as potassium permanganate, hydrogen peroxide, etc.), or strong acids and alkalis (such as concentrated sulfuric acid, concentrated sodium hydroxide, etc.), chemical reactions may occur, resulting in a decline in adsorption performance.
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Surface Functional Groups: Its surface has a certain number of functional groups, such as carboxyl groups (-COOH), hydroxyl groups (-OH), lactone groups, etc. These functional groups can form chemical bonds or hydrogen bonds with certain adsorbates, enhancing the adsorption effect. Meanwhile, the adsorption performance and selectivity of the activated carbon can also be adjusted by modifying these functional groups.
FAQ
What particle sizes do you offer for your wood based powdered activated carbon?
We provide wood based powdered activated carbon with a fine particle size range of 80–200 mesh (approximately 0.18–0.075 mm) to maximize surface area and adsorption efficiency across various applications.
Can your powdered activated carbon be regenerated and reused after adsorption?
Yes, our powdered activated carbon suppliers offer products that can be regenerated using thermal or chemical methods, restoring part of their adsorption capability and extending their service life.
Is your wood based activated carbon suitable for removing contaminants in drinking water?
Our wood-based activated carbon is effective in removing residual chlorine, odors, heavy metals, and organic pollutants, making it an ideal choice for drinking water purification and improving water quality.
Do you provide tailored production services for industrial adsorption needs?
We offer customized manufacturing plans for wood based powdered activated carbon to meet specific industry requirements. Contact us to discuss your project specifications and receive expert recommendations.
