may include sand, anthracite, and activated carbon. Sand and anthracite are used to intercept the larger particles to be removed and activated carbon is used as the adsorbent for smaller particles, such as colloids, bacteria and viruses, in the filtering process.
Sand is the most commonly used media in the less developed countries. The depth is usually 60-70 cm and the effective size ranges from 0.6 to 0.8, but both depth and size can vary widely. Dual media, of materials of different specific weight, is used throughout the industrialised countries; it usually consists of a layer of anthracite coal over sand. The combination can take a much higher load - four or more times the old conventional load.
Material that comprises the filter element. Glass fibres and polyester fibers are examples of filter media. ("media" is the plural of "Medium." Common practice allows it to be used as the singular form and "medias" as the plural.)
materials used to remove dirt and debris from water. Common media include: diatomaceous earth, sand and zeolites. D.E is used only with specific filters. Sand and zeolites are used, interchangeably, in all sand filters.
Various materials used in a Filter which remove particles and impurities from the water by mechanical, biological, and/or chemical means.
a fine pleated paper and cheaply made media can suffer cracks at the folds that reduce actual efficiency
The material through which wastewater is passed for the purpose of treatment.
Material for removing airborne contaminants. An assembly of fibers that are randomly laid perpendicular to the airflow.
The selected materials in a filter that form the barrier to the passage of filterable suspended solids or dissolved molecules. Filter media are used to remove undesirable materials, tastes, and odors from a water supply and to adjust the pH in a water supply.