Healthy Water

Healthy Water Suply

Water is a substance that has a very important role for the survival of humans and other living creatures. Humans will die faster from lack of water rather than food shortage. In the human body itself consists mainly of water. Approximately 55-60% body weight of adult body consists of water, for children approximately 65% and for the baby about 80%. Water is needed by humans to drinking, cooking, bathing, washing and agriculture.

According to WHO calculations, in developed countries each person requires between 60-120 liters of water per day. While in developing countries requires 30-60 liters of water per day for each person. One of the usefulness-usability of water, which is very important, is the need to drink. Therefore, drinking water should have a special requirement, so that the water does not cause disease to humans.

Drinking water should be sterile (sterile = does not contain any substance cause disease). The sources of drinking water in general and in rural areas in particular are not protected so that it does not have health requirements, so it need to be processing first.

For drinking water treatment can be done in 2 ways:

1. Cook or boil water, so all the germs will be dead. This method requires more time and it can not be done on a large scale.

2. By using chemical substances such as chlorine, activated carbon and others. This can be done on a large scale, more faster and cheaper.

In order to drinking water does not cause disease, then the water should be fulfill the health requirements, at least cultivated close to these requirements. A healthy water should have the following requirements:

1. Physical Conditions
Physically, drinking water must be clear (colorless), no taste, temperature below the outside air temperature. It is not difficult to recognize water that have physical requirements.

2. Terms bacteriological
Drinking water must be free from all bacteria, especially pathogenic bacteria. Drinking water sample must be examined in laboratory to know whether drinking water contaminated by pathogenic bacteria or not. And if the examination 100 cc of water contained less than 4 bacteria E. coli, the water has health requirements.

3. Chemical Terms
The healthy drinking water must contain certain substances in certain quantities. Deficiency or excess certain chemicals in water will cause physiological disorders in humans.

Usually, the drinking water comes from springs and deep wells is acceptable as a healthy and have all of the requirements above as long as it is not polluted by the dirt, especially human and animal feces. Hence springs or wells in rural areas should receive supervision and protection it will not polluted by people who use the water.