At NINGBO INNO PHARMCHEM CO.,LTD., we understand that selecting the right activated carbon is crucial for achieving optimal purification results. A key factor in this selection is the mesh size, which dictates the particle size and, consequently, the carbon's performance characteristics in different applications.

Activated carbon is typically available in granular form, with mesh sizes ranging from very fine to coarser particles. The mesh size refers to the number of openings per linear inch in a sieve. A larger mesh number indicates smaller particles, while a smaller mesh number indicates larger particles.

For liquid phase applications, such as water purification, common mesh sizes include 8x30, 12x40, and 20x50. Let's break down what these mean and where they are best applied:

  • 8x30 Mesh Activated Carbon: These are relatively larger granules. Their coarser structure allows for good flow rates and minimal pressure drop in filtration systems. They are often used in larger industrial water treatment applications where high flow rates are important, and where the contaminants are generally larger molecules or particles. They are also suitable for some air phase applications.
  • 12x40 Mesh Activated Carbon: This is a very popular and versatile mesh size, particularly for liquid phase applications. The granules offer a good balance between surface area and flow rate. They are widely used in drinking water filters, aquarium filters, and various industrial liquid purification processes. The smaller pores associated with this mesh size are effective at capturing a broad spectrum of contaminants, including chlorine, VOCs, and organic impurities.
  • 20x50 Mesh Activated Carbon: These are finer granules. Their smaller size means they have a larger surface area relative to their volume, offering a higher adsorption capacity. However, they can also lead to a higher pressure drop in filtration systems. They are often used in applications where maximum contaminant removal efficiency is critical and flow rates can be managed, such as in some specialized air purification systems or fine liquid filtration where particulate shedding is a concern.

Powdered Activated Carbon (PAC) consists of very fine particles, typically less than 80 mesh, and is often used in batch treatment processes or for applications where high contact time is needed, like in food and beverage processing or some wastewater treatment scenarios.

The choice of mesh size also depends on the specific filtration system design. For instance, in-line filters may require finer grades for efficient contaminant capture, while large-scale industrial towers might utilize coarser grades to optimize throughput. The material source also plays a role; coconut shell activated carbon, known for its hardness, can maintain its granular integrity across various mesh sizes.

At NINGBO INNO PHARMCHEM CO.,LTD., we offer a comprehensive range of coconut shell activated carbon in various mesh sizes, tailored to meet the specific requirements of your purification needs. Consulting with our experts can help you determine the ideal mesh size and activated carbon product for your unique application, ensuring you achieve the best possible results in water, air, or chemical purification.