With the increase in population and the increase in daily human activities, we are utilizing more and more water. Municipal water treatment systems are among our society’s huge heroes.

Without them, those of us who live in cities wouldn’t have access to clean water that was delivered right to our home’s faucets.

Municipal water is the tap water that is distributed to different businesses and residences via subterranean pipes. The bulk of contaminants are eliminated before the water is used for drinking or taking showers because it has undergone complete treatment and processing before being delivered to these locations.

The process of treating municipal water

municipal water


Coagulation is one of the initial steps in the municipal water treatment process. For this phase, a substance with a positive electrical charge, such as alum, is necessary.

The negative charges that water contaminants have are balanced by this substance, which is also referred to as a coagulant. Thus, the coagulant works to aggregate smaller groups of individual contaminating particles together.


The water is carefully blended once the coagulant has been added. The coagulant spreads more evenly in the water when mixed. The coagulant gathers the contaminant-neutralizing particles into bigger flocs.


To separate the floc from the water, the water and floc mixture is placed in a sedimentation tank, sometimes referred to as a clarifier.

Because the floc is heavier than the water, gravity causes it to fall to the bottom of the tank. Sediment can now be removed from the bottom of the tank from the particles there.

Instead of using gravity, filters may be used to remove the floc from the sedimentation tank.


The water is filtered multiple times once the sediment has been removed. Because the components of the filters come in varying sizes, so do the pores—the spaces between the materials—that separate them.

Different-sized pollutants, such as dust or chemicals, are removed from the water by the variation in pore size.


The filtered water is treated with an ultraviolet light or a chlorine-based disinfectant. Additionally, disinfection eliminates microorganisms like viruses and bacteria.

The majority of the pollutants in the water should have been removed by this phase, making it safe to drink. To eliminate impurities while still allowing the water to be safely drunk, the quantity and concentration of disinfectants added to the water are carefully regulated.

Different filtration systems for municipal water treatment

water treatment

Depth filtration

Depth filters are a type of filter that retain particles across the entire medium rather than simply on its surface. They use a porous filtration medium.

Because they can hold a lot more particles than other types of filters before clogging, these filters are frequently utilized when the fluid to be filtered includes a high load of particles.

Membrane filtration

Membranes are thin, porous sheets of material that, when a driving force is applied, can separate pollutants from water.

Membrane processes, once thought to be only useful for desalination, are now being used more and more in the treatment of both drinking water and wastewater to get rid of bacteria and other microorganisms, particulate matter, micropollutants, and natural organic material, which can give watercolor, flavor, and odor, as well as react with disinfectants to create disinfection byproducts (DBP).


Though municipal water is not drinking water, it still plays an extremely important role in our daily lives. We can not imagine if we turn on the tap, and there was no water coming out.

Brother Filtration takes part in municipal water treatment every second, and due to that our filtration solutions served clients all over the world.

They use our product to run their water filtration system and guarantee the supply of municipal water. Our high-flow filter cartridges, depth filter cartridges, and depth pleated filter cartridges are suitable for municipal water treatment.


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