NINGBO INNO PHARMCHEM CO.,LTD. understands that selecting the right filtration media is critical for achieving optimal water treatment results. Anthracite filter media comes in various grades and sizes, each suited for different applications. This guide will help you navigate the choices when you need to buy anthracite filter media for your industrial water purification or drinking water needs.

The most significant differentiating factors for anthracite filter media are its particle size distribution and uniformity coefficient (UC). Particle size is typically measured by mesh size, with smaller mesh numbers indicating larger particles. Common sizes include #1 Anthracite (0.6-0.8 mm), #1-1/2 Anthracite (0.85-0.95 mm), and #2 Anthracite (1.7-2.0 mm). The choice of size depends on the filtration system's design and the nature of the contaminants being removed.

For multi-media filters, #1 and #1-1/2 anthracite are most commonly used as the top layer. Their coarser size allows for effective capture of larger suspended solids and debris, protecting the finer media layers below. The angular shape of these particles, as discussed previously, enhances solids retention and extends filter run times. Smaller particle sizes are generally not preferred for the top layer as they can lead to faster clogging and increased head loss.

The uniformity coefficient (UC) is another critical parameter. It is a ratio that describes the consistency of particle sizes within a sample. A lower UC indicates a more uniform particle size distribution, which is desirable for several reasons. Low UC anthracite exhibits less variation in particle size, leading to a more even distribution in the filter bed. This promotes better flow dynamics, reduces the risk of preferential flow paths, and maximizes the effective surface area for filtration. A UC of less than 1.7 is generally considered good for anthracite filter media.

When considering anthracite coal for water purification, it's essential to match the media's specifications to your specific application. For general turbidity removal in raw water, a coarser anthracite with a good uniformity coefficient is ideal. For more demanding applications requiring finer particulate removal, a slightly smaller particle size might be considered, but always in conjunction with a low UC and appropriate multi-media configuration.

To buy anthracite filter media that best suits your needs, consult with filtration experts. At NINGBO INNO PHARMCHEM CO.,LTD., we can guide you through the specifications, helping you select the right grade of calcined anthracite filter media for your industrial water purification system. Proper selection ensures efficient operation, extended media life, and superior water quality.