Water treatment is a process that is mandatory for ensuring a clean supply of water for domestic as well as industrial and commercial purposes. However, the industrial water treatment plants that are being used for this purpose all over the world utilize a lot of energy which is usually equal to 1.5 kilowatts per hour which is needed to remove one kilogram of pollutants from the water.
However, a much advanced technology has been developed for the process of treatment of water on an industrial scale. This method makes use of bacteria in order to treat the water in a plant. In this process, the bacteria are infused into the water at the treatment plants. These bacteria consume the organic pollutants that are present in the water, which makes the process of their reproduction very fast. As the bacteria start to multiply rapidly, the process of purification of the water becomes faster. By the end of it, around one third of the total weight of the water settles down in the form of a lump of bacteria. This is then sterilized by heating and dumped in a landfill, where it can not longer multiply and harm the environment in any way.
Besides purifying the water, the bacteria also give out electrons as a part of a larger system. These electrons can be harnessed within the water treatment system and the entire unit can be used as a battery. This battery can be, in turn, used to produce electricity. Further developments in the process are being done with an attempt to identify the microbes that can also help in the decomposition of other types of inorganic pollutants that contaminate the water. The entire system has proved to be very promising for the future, both for the treatment of water and generation of electricity.