A Comparative Analysis of Different Filtration Methods used to Purify Water for Drinking Purpose

The most important resource that is available abundantly and useful on the earth is “Water”. But in the coming years due to climatic and other environmental changes, there are chances that scarcity of water is likely to occur. Over 2 billion people in the world consume water that is contaminated with microbes and other chemicals which can cause waterborne diseases like diarrhea, cholera, dysentery, and typhoid that is harmful to the human body. As essential as water is to life, it could be dangerous if not purified, hence the need for purifying water is very important. Water purifiers are devices used to purify water or make water suitable for drinking and other essential purposes. Most water purifiers available use a blend of different kinds of carbon media to attract contaminants, but these could be hazardous to health. This paper reviews and describes the various methods used to purify water that is suitable and safe for drinking purposes. We also classify and compare these methods based on the method of filtration.