Drinking water

Today it is known worldwide what drinking water is , however, many have not been in charge of delving into the subject because just by having the glass of drinking water that they will drink at home they satisfy themselves, however, it should be of general knowledge of where it lies, what is the process for it to be consumed, what is treated with that water and how it is treated, various topics regarding drinking water that will be discussed below.

Which is the potable water?

Is called potable water to the water that has been previously treated to make it suitable for human consumption , this water should not retain substances or microbiological organisms that cause diseases or likely to impair the health of humans.

  • Definition
  • History
  • Drinking water consumption
  • features
  • What is it for
  • Where does the drinking water come from?
  • Treatment
  • Filters
  • Distribution
  • Shortage of drinking water
  • Contamination
  • Ph of drinking water
  • Profits
  • Importance


Drinking water, in this framework, is water suitable for human consumption.


Since the beginning of time people have stored water in containers and vessels, in the past when man was a hunter and gatherer the water that was used to drink was that of the river, approximately 7000 years ago in Jericho, Israel the water that It was stored in the wells, which began to be used as a source of the resource, then the water began to be distributed, through simple and practical channels dug in the sand or rocks, later hollow tubes were increased and then ceramics were used. wood or metal.

Drinking water consumption

Drinking water can be consumed in many ways , it is mostly used to treat supplies before cooking and it is used in the kitchen in the same way when preparing food, in addition to this, people drink it alone.


The main characteristics of drinking water are:

  • It is filtered.
  • It goes through a series of processes to become drinkable.
  • It is suitable for human consumption.
  • It is used mainly in agricultural plants, thus protecting the plants from bacteria and diseases.
  • It is tasteless.
  • It is colorless.

What is it for

This water goes through an extremely exhaustive sanitary treatment, which frees it of bacteria , toxins and radioactivity that could very well be detrimental to the health of a population ; The function of this is not only that it can be ingested by people, but with this drinking water crops are also irrigated in agricultural fields , in order to avoid and prevent contamination in crops.      

Where does the drinking water come from?

  • Wells.
  • Springs.


The water that is in the wells or springs generally to be ingested must be treated, however, this does not mean that the population of some cultures needs to do so, since by tradition and custom, they take it directly from wells , springs or streams.

This process or treatment that is given to the water is carried out in purification plants , in which the spring or well water goes through various changes and stages , in order to become the final product that would be to convert it into drinking water .

  • Pre-chlorination and flocculation: After the water is processed by a filter, thus eliminating any trace of minerals or solid fragments of large objects, chlorine is added, thus eliminating microorganisms from the water, and other various chemicals that They will also benefit the process, favoring in the same way the agglomeration of what would be defined as foci, whose name are flocs .
  • Decantation: In this phase or stage, the flocs and other molecules and particles belonging to the water are eliminated.
  • Filtration: The water is made to pass simultaneously through filters that will gradually remove the traces of sand and particles or molecules that still exist in it, in turn this process removes the turbidity from the water.
  • Chlorination and delivery to the network: In this phase , the microorganisms that resisted the previous processes are eliminated .

When the water is odorless, colorless and insipid, it can be distinguished that it is already suitable to be ingested, therefore, at this point the water is already drinkable.


  • Filtration through a deep bed: This is a filter that has gravel and sand inside. As the water passes through these layers, all the molecules are retained, purifying the water a little more.
  • Filtration through activated carbon: After the water passes through the mechanical filters, it passes through the granular carbon purifier, many people tend to make the mistake of calling it the activated carbon filter, however, that is not its true Name. In this filter, a chemical absorption process is generated , which generates that the particles of microorganisms that are still in the water stick to the walls of the coal ; In this stage, pesticides, toxins, pesticides and other organic pollutants that are natural in the water settle .
  • Cartridge filtration: This is the last stage of filtration in the water, this goes through a device which has a role that has a filter function, which retains any residue that is still in the water, it manages to retain up to a residue of 0.22 microns, although the common in filters is 5 microns.


All water distribution requires a highly organized infrastructure, in order to get the vital liquid to the users, these infrastructures are diverse and range from a complex system of pipes that facilitate the mobilization of the resource , to containers or water tanks , therefore, the way in which this is distributed will cause a certain price, the more complex the system, the greater the cost, however, since drinking water cannot be stored in common containers as it can be contaminated.

Shortage of drinking water

The shortage of drinking water has been proliferating throughout the world, thanks to the improper use of it, the irrational use of the vital liquid is costing many countries their existence, for which reason they have begun to ration; the demand for water in recent years has risen greatly due to population growth and a single person consumes approximately 300 liters of drinking water per day, which makes the situation more complex.

And although the shortage of drinking water may be due to natural circumstances, the human being has cooperated so that its existence decreases, not being aware of when it comes to using it.

  • This problem is affecting around 2.8 billion people on all continents .
  • More than 1.3 billion people do not have access to safe water.
  • It is estimated that approximately 70% of fresh water is used for agriculture .
  • The problem of water scarcity is intensifying in countries such as China , India and sub-Saharan Africa.
  • The African continent has the largest number of countries affected by water scarcity.
  • Only 0.007% of the existing water on Earth is drinkable.
  • Millions of people have to walk more than 12 kilometers a day to get clean water.
  • Lack of clean water kills 4,500 children every day.
  • In China, more than 538 million people live in water stress.
  • The economic scarcity of water is usually the main cause in most countries for scarcity of this resource.
  • One in five developing countries will have water scarcity problems before 2030
  • By 2025, 26 African countries are expected to suffer from water shortages.
  • 844 million people in the world lack basic drinking water service .
  • 2.3 billion people in the world do not have access to basic sanitation facilities.


Polluting the environment is simple, and apparently it is the hobby of most of the people, some wells and springs had to be treated, cleaned and closed for the population , since there were plastic residues or waste that should not have been there , and that obviously are factors that contaminate fresh water, for which measures were taken, grating the wells and springs , so that unconsciousness does not affect the little reserve of fresh water that remains in existence.

Ph of drinking water

The pH of drinking water must be between 6.5 and 9.5, to be considered safe.


  • It helps to preserve the health of the human being.
  • Avoid diseases.
  • Its pH is controlled, which is why it is regulated and adapted specifically for consumption.


The drinking water is one of the vital resources most needed in the world, not so much for coexistence, but also for the health of people, many people year die from infections because of the lack of the vital liquid, however, not many value having such an important resource at their disposal; The importance of drinking water is not only in these areas, it also lies in what it means for the agricultural field , since it is the one used in these so that the harvests are optimal and in this way suffer less risk when it comes to consume them.

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