How To Remove Bacteria From Drinking Water

Water is a rich source of essential minerals for the healthy and expected growth of the body and also it makes up 70 % of the body, that’s why it is essential for the proper functioning of tissues. 

How To Remove Bacteria From Drinking Water

Drinking 8 to 9 glasses of water is ideal because it aids in eliminating harmful wastes from the body and maintains the water balance in the body. It helps in losing weight as well as keeps the skin hydrated and glowing.

However, drinking water contains many pathogens that cause serious health issues like diarrhea, cholera, and jaundice. These contaminants affect the oxygen-carrying capacity of the cells as well.

The drinking water must be used after purification and bacteria present in the water should be removed by using various techniques like boiling, filtration, and reverse osmosis.

These methods kill the bacteria or filter it and make the water safe for drinking purposes and for making food. Purified water is also crucial for infants and children to keep them strong and healthy.

Top 5 Methods to Remove the Bacteria From Drinking Water

1: Boiling

Boiling is the change of state of water at high temperature and it purifies the water by removing the pathogens like bacteria and viruses that cause serious health issues such as cholera and diarrhea.

Boiling the water for one minute kills the microorganisms present in it and preserves the essential minerals required by the body for normal growth. Drinking boiled water keeps the children strong and healthy as well.

2: Filtration

Filtration is when the contaminants present in the water are filtered with the help of a semi-permeable membrane. The filtration process greatly depends upon the pore size of filters that don’t allow the bacteria to pass through it.

These filters work with electricity however, once installed they minimize the efforts of boiling the water and also provide ease. These filters also add minerals to water by the mineralization process.

3: Using Chemicals

You can also remove bacteria from water using chemicals like chlorine. It is one of the most common methods of destroying the bacteria in water. It is a widely used disinfectant, and also it is not expensive and effective.

The two different types of chlorine are hypochlorous acid and chlorite ion. These work in the range pH 3 – 9. Still, they have slightly different effects when dissolved into the water at higher or lower levels than this optimal zone for activity and partial pressure (density). They kill the bacteria and purify the water.

However, in high amounts, chlorine is harmful as it causes irritation of the nose & eyes and can cause skin problems.

4: Reverse Osmosis

Reverse osmosis filters work with high water pressure as these filters contain semi-permeable membranes and remove the bacteria from the water. However, these filters require three times more water than ordinary water filters.

These filters don’t need electricity, and also they are eco-friendly as they reduce the pollution of plastic water bottles. Moreover, these filters conserve the vital nutrients that are essential for the body.

5: Using Ultraviolet Sterilization

One of the most influential and convenient methods of killing bacteria in the water is ultraviolet sterilization in which ultraviolet light is used as a disinfectant and purifies the water.

This method works at shallow water pressure and it is safe and eco-friendly. However high amounts of ultraviolet radiation can harm the oxygen-carrying cell by mutation.


Drinking water must be purified because the contaminants present in the water can cause severe disorders like jaundice and cholera, leading to chronic infections.

Water can be purified by various means and the easiest way is boiling, which kills the bacteria and preserves the essential minerals.

Filtration, reverse osmosis, and ultraviolet sterilization also kill microorganisms like bacteria. However, the vital nutrients lost during this method and can be re-added by a process called remineralization.

These are the top 5 techniques of removing bacteria from the water and I hope this article will help you to understand these methods easily. Thanks!

Also Read: How To Remove Chlorine From Water

About Carissa Taylor

Carissa is the founder and creator of the Gliving. With an emphasis on healthy eating and living, Carissa's recipes and food photography have been featured in various publications including the Food Network Blog, Huffington Post, TODAY Food, and more.