One of the things that we cannot live without is definitely water. Although we may not think about it seriously, it has become a major problem especially for the countries in the middle east. It seems that the water shortage has become so obvious that can be a big alarm for humanity to do something about it.
But let’s look at how we get the tap water or drinking water. What is the cycle or where does it come from.
Although water comprises 70% of Earth, only one percent of water is fresh and usable. This one percent of the water comes from lakes, rivers, or the ground. Your water either comes from a public source (water treatment facilities) or from a private source (wells). And this water is the result of Earth’s water cycle.
The water cycle:
It all starts from the sun, heating bodies of water and causing it to evaporate. After evaporation of water the steam goes up and higher to the sky and by cooling down with the low temperature above makes up the clouds and eventually, rain comes down. This cycle happens over and over again. From sky to the ground and vice versa.
About 20% of the world’s fresh water supply comes from groundwater. Rain and snow are collected underground in a “rock pocket” called an aquifer. Soil pore spaces in the ground become saturated with water, and this maximum depth is called the water table. Groundwater rises to the surface in the form of a spring. Groundwater may also be accessed by drilling a well into the ground.
Surface water is collected from precipitation and groundwater deposits that reach the surface. in wetlands, oceans, streams, or rivers. Most surface water is not drinkable without treatment.
Now, how this water is treated to be drinkable and be used for us is another story.
Water treatment involves the removal of impurities that make water unsafe for human consumption. This water may flow from a surface water source, or it may be pumped from an aquifer.
A private water treatment system may treat a household or a small group of homes. Chemicals and physical processes are used to filter and disinfect harmful microorganisms.
While water treatment systems filter out many different impurities, they don’t necessarily filter out impurities that cause water problems such as bitter taste, foul odor, or mineral deposits.
There are two main types of water delivery systems:
pipes and bottled water. Both deliver drinkable water from the source to your home. Through Pipes to Your Faucet Tap water travels from a public municipal water treatment system or private well to your faucet. A series of pipes transport the water to your home plumbing. If you receive your water from a public municipal water treatment system, the water usually arrives at your household via the main line from the distribution system.
Many bottled water brands are sourced from a municipal water system or a natural spring. Bottled water may undergo additional purification.
So, next time you easily open your kitchen faucet and use the water think that some kilometers away from you some people may have to walk for kilometers to get some water for their life that might not be even safe to use.