What is Anthracite Carbon Media Filtration?
Anthracite is a form of coal that has the highest carbon concentration, with over 95% by weight. Anthracite, like other minerals, is created by a combination of accumulated plant layers, pressure, and temperature over millions of years.This black and rather gleaming mineral is the hardest of all the carbon compounds. Long used in water filtration, anthracite for water filtration is usually specially selected from deeper mines, where the carbon content is typically even higher due to higher pressures.
Why is anthracite used as a filter medium for water?
Filter media are materials that allow raw, untreated water to pass through them while keeping any impure particles, allowing cleaner water to pass through. Each filter medium has its own set of features, including size, weight, whether it is activated or not, gravity, and so on.
All of these qualities result in varying operating performance for specific filtration jobs; often, a compromise is attempted to deliver the most durable system or a system at a lower price point. Anthracite is a popular choice because of its broad contamination tolerance and ease of shaping it into a filter grade product.
Anthracite has outstanding capabilities for purifying and clarifying drinking water, wastewater filtration, and industrial water, especially when used in conjunction with other sand filters or as a component of a dual- or multi-media filtering system.Anthracite is one of the most extensively used water filter media due to its perfect qualities, relative ubiquity, and convenience of usage.
Anthracite Carbon Media Benefits
1: There are instances when a municipality's existing water treatment system begins to malfunction. Regrettably, replacing those systems with new ones can be costly. However, in the case of sand filters, the addition of Anthracite carbon media may be possible to retrofit these filters. Whether the problem is excessive back washing or head loss, inefficient treatment, or changes in the influent water quality or flux, adding anthracite to the filter bed can be a simple and economical remedy. Depending on how the bed was originally built up, some altering of the structure may be required. The best case scenario, however, is to simply add anthracite to the top of the filter system.
2: As is often the case with sand, non-uniformity can be the adversary of filtration systems, altering the flow of fluid through the bed and how particle matter is gathered inside the granular gaps. When sand is utilised in a singular media filter arrangement, it has a greater homogeneity coefficient and hence clogs more frequently.
3: Anthracite is sharp and angular, whereas sand particles are more spherical. More angular constructions result in more effective back washes, according to studies. This could be because it agitates the backwash water, causing particle debris to be dislodged from the media surfaces. By eliminating all or most of the captured suspended particles, good back washes are essential for boosting filtration run times and enhancing treatment quality.
4:During the course of their operation, filter media’s may be exposed to a variety of pollutants as well as erosion. Each of these events has the potential to degrade the media in question over time, resulting in media loss as well as changes in the gradient and stratification of multimedia filters. Degradation will also affect the rate of blockage by reducing the size of the media particles. Anthracite is a tougher type of coal that is recognised for its long life. It can withstand the presence of corrosive chemicals as well as erosion over time.
Why Is Anthracite Used for Water Filtration in Deep Beds?
Deep bed filtration is a quick and effective way to remove tiny particles from liquids, and it works especially well with water. This method of particle dispersion in liquids and water is widely used in a variety of businesses, particularly in the civic purification industries that deal with water and wastewater treatment.
Anthracite is ideal for this business because the form of the particles lends itself to deep bed filtration applications. As previously stated, their strength and other qualities make them a perfect supply for various purposes.