What is the process of water filtration? (2023)

What is the process of water filtration? (2023)

Every industry professional should be familiar with and understand the water filtration process when it comes to water and wastewater treatment. What is it exactly? How do they differ? What is the process of water and wastewater treatment

Water Filtration Definition

Solid particles are removed from liquid or gaseous fluids by filtration for safe drink water, which is the process of passing a fluid through a filter while retaining the solid particles. 

A physical barrier, a chemical barrier, or a biological barrier may be used. Particle removal occurs 

To filter, you need: a filter medium (thin or thick barriers); a fluid with suspended solids; a force to move the fluid; and a filter to contain the fluid. 

How Are They Used in the Water Industry? 

The goal of filtering in the water industry is to produce clarified water. A variety of industrial applications use this material, including storm water, wastewater, and drinking water, power plants, food and beverage production facilities, mining, and other heavy-duty uses. 

It is possible to remove or reduce the concentration of suspended particles, parasites, bacteria, algae, viruses, fungi, and other biological and chemical contaminants through the use of water filtration.

The water has to be driven through the filter medium to pass through it in order to be filtered. In order to push the Aqua pure water treatment through the filter, pumps, valves and pipes are used to produce enough pressure to drive it through gravity, centrifugation, pressure on the fluid above the filter, or other processes that use gravity, centrifugation, or pressure on the fluid above the filter.

water filtration

A brief history 

There is evidence that it was used to make dyes, wines, and beers before the Industrial Revolution.

Ancient drawings and writings illustrate simple water filtration processes from more than 6000 years ago. In particular, Sanskrit and Greek writings recommend treatment methods for water. 

In these writings, early water treatment is described as: “Impure water should be purified by boiling it over a fire, heating it in the sun, or dipping a heated iron into it and allowing it to cool, or by filtering it through sand and coarse gravel.” (Jadhav, Aasawari, 2014).).

What are the different types? 

Water filters include strainers, precoat filters, slow sand filters, rapid gravity and pressure filters, membrane filters, and granular media filters.

Using Strainers and Straining 

The process of straining involves pouring water through a cloth, and can remove some suspended silt and solids, killing some pathogens.


By using gravity, gravity filtration removes impurities from liquids by pulling them through a filter. Using granular media, this type of filtering involves interception, straining, flocculation, and sedimentation.

Molecular membranes 

As a result of membrane filters, bacteria can be eliminated by microfiltration and ultrafiltration, which serves as a pretreatment before nanofiltration or reverse osmosis takes place. 

A media outlet 

Through a prescribed filter medium, media filtration systems filter water, including:

The pressure 

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