Current Scenario of Drinking Water

The quality of drinking water is deteriorating day by day. It is no longer as pure as it was during our forefather’s time. Primary reasons why tapwater may no longer be safe for human consumption are:-

Climatic changes, draughts, rampant and uncontrolled industrialization has led to alarming levels of wastebeing disposed into our water sources such as rivers, water reservoirs and ground well water.

Ageing pipeline network and poor maintenance results in municipal water getting contaminated by the time it reaches our homes.

Due to ever increasing pollution levels, the water sources are under dire stress and are getting contaminated with dissolved impurities, bacteria, viruses and cyst.

Since the demand for municipal water is greater than the supply and due to the onset of multi-storied buildings, the practice of storing water in overhead tanks has become more common. These storage tanks are not airtight and become breeding grounds for unwarranted harmful micro-organisms like bacteria and viruses.

With increased reliance on pesticides and insecticides in our agricultural industry, these harmful chemicals, when used excessively, percolate into the ground well water as well as get washed away into the rivers.

Rivers are no longer sufficient to meet society’s ever increasing demand of drinking water and hence there is an increased reliance on ground well water, which contains excessive levels of dissolved impurities making the water hard (khaara).

These are the physical impurities which remain suspended in water such as dust, sand, dead insects and harmful micro-organisms like bacteria, viruses and cyst. They lead to discoloration of water and may also cause diseases..
These are the chemical impurities which get dissolved and mixed with water. They cannot be removed by simple filtration techniques and require advance technology for removal. These impuritiesinclude chemicals, rust, pesticides, insecticides and salts of metals like arsenic, fluoride, iron, calcium etc.
Hence, with the constant deterioration in the quality of water and rise in impurities, it is now imperativeto have a water purifier in our kitchens, irrespective of the source of water supply.
As the problems of impurities in water are increasing, thankfully so are the solutions to get rid of them. There are many technologies available in the market which can make contaminated water safe for drinking. However, each of these technologies has its inherent advantages and disadvantages. Some are simple and cost-effective, while some are state-of-the-art but expensive.
BoilingThis is the most common and widespread form of purification technology available to us. Boiling effectively kills all harmful micro-organisms but has no effect on other suspended impurities like dust, sand, etc. It is also not able to remove dissolved impurities present in the water. The logic being simple- if you boil water containing sugar or salt, the water will still remain sweet or salty.

Ultra Violet (UV) DisinfectionThis is the most common and widespread form of purification technology available to us. Boiling effectively kills all harmful micro-organisms but has no effect on other suspended impurities like dust, sand, etc. It is also not able to remove dissolved impurities present in the water. The logic being simple- if you boil water containing sugar or salt, the water will still remain sweet or salty.