Advantages of Anthracite Media for Municipal Potable Water Treatment
Based on the initial water quality, treating water to make it potable needs a significant amount of treatment.
Many people immediately think of more technologically advanced treatments, such as reverse osmosis and comparable technologies. Of course, there is a bit more involved in municipal drinking water treatment, dependent on intake water quality.
Anthracite media has been widely employed in municipal water filtration system applications in India, and around the world for simpler drinking water treatment applications.Anthracite media provides various advantages for municipal potable water treatment.
Non-uniformity can be an adversary of filtration systems, altering the flow of fluid through the bed, and how particle matter is gathered within the granular gaps.
Anthracite is often produced with a uniformity coefficient less than two. The lower the coefficient is, the smaller the variation in granule size. Tiny granules present in coarse filter medium (such as anthracite), can catch smaller suspended particles. This avoids deeper penetration into the filter bed and accelerates media clogging.
• Compatible with existing sand filters
Municipalities frequently run into problems with their existing water treatment infrastructure. Unfortunately, replacing old systems with new ones can be costly. However, in the case of sand filters, it may be viable to retrofit these filters with Anthracite carbon media.
Whether the problem is excessive back washing or head loss, inefficient treatment, or changes in the quality or flow of the influent water, adding anthracite to the filter bed can be a simple and economical remedy. Depending on how the bed was originally configured, some altering of the structure may be required. The best-case scenario, however, is just adding the anthracite to the top of the filter system.
Anthracite particles are sharp and angular. According to research, more angular shapes result in more effective backwashes. This could be because it agitates the backwash water, dislodging particle debris from the media surfaces.
Back washes that remove all or most of the captured suspended particles, are critical to extending filtration, and enhancing treatment quality.
Filter mediais exposed to a variety of pollutants, along with the issue of erosion. Each of these occurrences has the potential to degrade the media over time, resulting in media loss and changes in the gradient and stratification of multimedia filters.
Furthermore, degradation diminishes the particle size of the medium and influences the rate of blockage. Anthracite, a tougher type of coal, is well-known for its toughness. It can withstand the presence of corrosive chemicals, and can withstand erosion over time.
• Capable of transporting biofilm
Effective surface area is critical when it comes to biofilms. The more is the surface area, the more biofilm will accumulate on. Fortunately, anthracite has a high specific surface area and a high vacancy percentage.
The void percentage is the ratio of the empty volume in a filter matrix, to the volume of a solid media. A higher percentage means greater space among the anthracite granules, which is important for biofilm growth and preventing blockage.
These characteristics equate to cheaper operational and capital expenditures, for municipalities that employ anthracite media. The use of anthracite allows the use of sand filters, and the media can be integrated into existing gravity sand filters.
Of course, the physical features of anthracite ensure that a municipality's filters require less back cleaning, have reduced head loss, and produce superior treatment results. Because, of these efficiencies, communities can spend less on filter maintenance and backwash water, compared to single sand filtering systems.
How can we assist?
Netsol Water is one of the renowned water treatment plant manufacturers. We believe filtration is an important aspect of most water treatment systems, and choosing the proper system can be difficult. Therefore, we offer anthracite carbon media, which is one of the best types of filtration medium that is employed.