Coconut shell charcoal for drinking water treatment

Product Introduction

Coconut shell activated carbon is a high-performance adsorbent made from coconut shells as the main raw material through a series of complex physical and chemical processing techniques. It usually appears as black granules or powder externally, and internally it has a highly developed pore structure. These pores are intertwined with each other, forming a huge specific surface area, enabling it to effectively adsorb various substances and play a crucial adsorptive role in numerous fields.

Microporous Adsorption Architecture For Precision Filtration
Our product is manufactured using high-quality coconut shells from Southeast Asia as raw material, processed through advanced carbonization and steam activation techniques. The resulting coconut shell activated carbon features a highly developed microporous structure, which is the primary driver behind its superior adsorption capabilities. Unlike standard filtration media, the internal surface area of our carbon is maximized to capture low-molecular-weight organic compounds effectively. The material presents as black, amorphous particles, available in specific mesh sizes such as 6x12, 8x30, and 12x40 to suit various reactor dynamics. This structural integrity ensures that whether the application requires static bed filtration or fluidized bed operations, the media maintains consistent performance. For clients seeking reliable coconut shell activated carbon suppliers, our technical specifications confirm iodine values ranging from 900 to over 1100 mg/g, indicating a high density of activation sites ready to trap contaminants at a microscopic level.

Mechanical Strength And Durability In Harsh Environments
A critical specification for industrial users, particularly in the precious metal recovery sector, is the hardness of the filtration media. Our granular activated carbon is engineered to withstand significant mechanical stress. The datasheet confirms a hardness rating exceeding 98% for our premium gold-recovery grades and over 95% for standard water treatment grades. This high abrasion resistance is vital for preventing the breakdown of carbon particles during rigorous agitation processes, such as Carbon-in-Pulp (CIP) or Carbon-in-Leach (CIL) circuits. Low attrition rates mean less dust generation and, more importantly, reduced loss of adsorbed gold or other valuable metals. By maintaining a particle size uniformity with effective sizes between 0.45mm and 0.55mm, we ensure optimal flow rates and prevent channeling within filtration vessels, establishing our factory as a top-tier choice among coconut activated carbon manufacturers.

Chemical Purity And Operational Versatility
The purity of the activated carbon directly influences the quality of the final filtrate. Our production process ensures minimal impurity levels, with ash content strictly controlled between 3% and 5% depending on the specific grade (e.g., Gold Special Carbon vs. Water Purification Carbon). Low ash content prevents the leaching of unwanted minerals back into the process stream, which is essential for high-purity applications like drinking water treatment and food and beverage decolorization. Furthermore, the moisture content is kept below 5-8% to maximize the active weight of the product delivered. This balance of chemical purity and physical robustness allows the material to serve as an effective carbon activado (activated carbon) for diverse sectors, ranging from industrial wastewater treatment to air purification systems where removing Volatile Organic Compounds (VOCs) is mandatory.

Specific Parameters

• Iodine Value: Coconut shell activated carbon has a relatively high iodine value, generally ranging from 800 - 1200mg/g. The iodine value is an important indicator for measuring the adsorption ability of activated carbon for small molecules. A high iodine value indicates that coconut shell activated carbon has a strong adsorption capacity for small molecular organic compounds such as benzene, toluene, xylene, and substances like iodine element.

• Particle Size: If it is in granular form, its particle size is usually around 0.5 - 2.0mm, with uniform particles, which is convenient for filling and use in adsorption equipment. If it is in powder form, most of it can pass through an 80 - 200 mesh sieve (i.e., the particle diameter is less than 0.18 - 0.075mm). The fine particle size helps it to disperse better in liquids or gases, increase the contact area with the adsorbate, and improve the adsorption efficiency.

• Specific Surface Area: It has a large specific surface area, usually ranging from 1000 - 1500m²/g. The vast specific surface area provides abundant sites for adsorption, enabling it to adsorb a large number of impurities, pigments, odor substances, and harmful gases, playing a crucial role in the adsorption process.

• pH Value: The pH value ranges roughly from 4 to 10, which enables coconut shell activated carbon not to cause severe interference to the acid-base environment of the substances to be adsorbed in most adsorption application scenarios and allows it to stably play its adsorption function.

• Strength (Applicable to Granular Form): For granular coconut shell activated carbon, it has good mechanical strength, and the compressive strength can generally reach more than 80% - 95%. During the use process, such as when being impacted by air or liquid flows in an adsorption tower, it is not easy to break and can maintain a good granular form, ensuring the stability of the adsorption process.

Applications

Liquid-phase Adsorption

• Drinking Water Purification: In drinking water treatment, coconut shell activated carbon can effectively remove residual chlorine, odors, and chromaticity in water, and also adsorb some heavy metal ions (such as mercury, lead) and organic pollutants (such as pesticide residues, polycyclic aromatic hydrocarbons, etc.), improving the safety and taste of drinking water.

• Sewage Treatment: It is used for the advanced treatment of industrial wastewater and domestic sewage, 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.

• 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, when making sugar, 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.

Gas-phase Adsorption

• 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 used for industrial waste gas treatment to adsorb and purify harmful gases such as volatile organic compounds (VOCs), hydrogen sulfide, and ammonia in waste gas.

• 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.
  
  Use Scenarios
  
  Gold Mining And Precious Metal Recovery Operations
  In the context of a gold mine using the Carbon-in-Leach (CIL) process, the site metallurgist requires a filtration medium that can survive intense agitation tanks without disintegrating. Our product serves as the "Gold Special Carbon" in this scenario. The operator introduces the granular activated carbon into the cyanide slurry where it adsorbs dissolved gold complexes. Thanks to the >98% hardness, the carbon particles remain intact despite the abrasive environment of the slurry pumps and agitators. Once loaded, the carbon is screened out and stripped of gold. The high adsorption rate reduces the residence time required in the tanks, allowing for faster processing of ore tonnage. For mining procurement managers looking for reliable coconut shell activated carbon suppliers, our product provides the assurance of high recovery rates and minimal gold loss due to carbon attrition.
  
  Municipal And Industrial Water Treatment Facilities
  For a water treatment plant engineer responsible for providing potable water, removing taste, odor, and micropollutants is the daily objective. Our coconut shell carbon is deployed in deep bed filters to act as a polishing step after sand filtration. The high iodine value (>1000 mg/g) indicates a vast network of micropores ideal for trapping small organic molecules, chlorine, and disinfection byproducts. In industrial scenarios, such as beverage production or boiler feed water preparation, the low ash content ensures that the carbon does not introduce silica or other salts into the water. By partnering with us as their coconut activated carbon manufacturers, facilities ensure a consistent supply of clean media that meets strict hygiene standards, effectively safeguarding public health and equipment integrity.
  
  Air Purification And Solvent Recovery Systems
  In an industrial coating facility or a chemical processing plant, environmental engineers face the challenge of controlling Volatile Organic Compound (VOC) emissions. Our coconut shell activated carbon is utilized in packed tower scrubbers to strip hazardous gases from the exhaust stream. The large specific surface area provides ample contact zones for gas-phase adsorption. Additionally, this media is critical for solvent recovery units where expensive solvents like acetone or toluene are captured for reuse. The uniform particle size of our carbon ensures low air resistance (pressure drop) across the filter bed, reducing energy consumption for the ventilation fans. In regions where the term carbon activado is standard for procurement specifications, our product fits the requirement for a high-performance, natural filtration solution for improving air quality and regulatory compliance.
  

Advantages

• Outstanding Adsorption Performance: Thanks to its developed pore structure and high specific surface area, coconut shell activated carbon 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.

• High-quality and Renewable Raw Material: Coconut shells are a high-quality renewable resource with wide sources and relatively low costs. Using coconut shells to produce activated carbon conforms to the concept of sustainable development, and the structural characteristics of coconut shells themselves make the produced activated carbon have good adsorption performance.

• Good Chemical Stability: During normal use, coconut shell activated carbon has stable chemical properties and does not cause secondary pollution. For example, in the applications in the drinking water and food industries, it will not introduce harmful substances, and the safety is guaranteed.

• Strong Selective Adsorption Ability: It can conduct selective adsorption according to the molecular structure and properties of the adsorbate. By adjusting the pore structure and surface functional groups, it can achieve efficient adsorption of specific substances while reducing the adsorption of other substances, improving the pertinence and efficiency of adsorption.

Characteristics

Physical Characteristics

• Appearance and Morphology: It appears as black granules or powder. Granular coconut shell activated carbon has a regular shape and a smooth surface, which is convenient for filling and operation. Powdered coconut shell activated carbon is fine in texture and can be better dispersed in liquids or gases to fully contact with the adsorbate.

• 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.

• Density Characteristics: The bulk density varies depending on the particle size and shape. The bulk density of granular coconut shell activated carbon is generally between 0.4 - 0.6g/cm³, and that of powdered coconut shell activated carbon is relatively small, ranging from 0.3 - 0.6g/cm³. The small bulk density makes it occupy less space during storage and transportation, and it is also easier to mix evenly with other substances when in use.

Chemical Characteristics

• 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.

• 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.

Product Parameters

Product Name Coconut Shell Activated Carbon

Moisture ≤5%

Raw Materials of the Product Imported Indonesian Coconut Shell Carbonization Materials

Ash Content ≤10%

Specific Surface Area 600 - 1500m²/g

Strength >98%

Packaging Forms 25 kg, Jumbo Bag, Customizable

pH 5 - 7

Specifications 4 - 8 mesh, 5 - 10 mesh, 6 - 12 mesh, 10 - 20 mesh, Customizable

About Us
Chengde Tianyuan Activated Carbon Co., Ltd. was established in 2003 and has grown into a premier manufacturer dedicated to the research, development, and production of filtration media. Located in Pingquan, Hebei Province, our factory spans a significant area and boasts an annual output of nearly 8,800 tons. As a source enterprise, we integrate raw material acquisition with advanced manufacturing, specializing in coconut shell, coal-based, and wood-based activated carbons. Our commitment to quality is validated by our ISO9001 management system certification, facilitating our export operations to over 40 countries and regions worldwide. We serve a diverse global clientele, ranging from gold mining giants to municipal water authorities, providing them with factory-direct pricing and tailored technical solutions. Our mission is to deliver high-efficiency adsorption materials that support environmental sustainability and industrial efficiency.


Call to Action
Contact our technical team to request a quote and free samples for your project today!

 FAQ
What are the available mesh sizes for your coconut shell carbon?
We offer a wide range of standard mesh sizes including 4x8, 6x12, 8x30, 12x40, and 30x60 to suit different flow rates and pressure drop requirements in your filtration system.

Is this product suitable for gold recovery processes?
Yes, we manufacture a specialized "Gold Special Carbon" with high hardness (>98%) and optimized platelet structure specifically designed for Carbon-in-Pulp (CIP) and Carbon-in-Leach (CIL) gold extraction methods.

Do you have international certifications for your products?
Our manufacturing facility is ISO9001 certified, and our products hold HALAL and KOSHER certifications, ensuring they meet the regulatory and quality standards required for global export markets.

Can I get a sample to test before placing a bulk order?
We provide free samples for testing purposes so you can verify the iodine value, hardness, and adsorption performance in your own laboratory or pilot plant before committing to a purchase.

What is the typical lead time for a container load?
As a direct manufacturer with an annual capacity of 8,800 tons, we maintain consistent stock levels and generally ship orders promptly, with specific timelines confirmed based on the order volume and destination port.