Food and shelter are great essentials for living and as good as they are, you may still survive for quite a good period of time but that’s not the case with water. That’s why in the previous events and historical times, civilizations have always thrived in areas of abundant water supply. However, water is needed in large quantities, it is actually not enough to have it in abundance because as it can give life, so can it cause sickness in people or even kill them if it harbors disease-causing microbes. As a result, purification and treatment of water have set in for years. In ancient times, the Egyptians made use of alum to filter sediments and particles out of their water used for drinking. However, not until late of the 1800s and early 1900s that discovery was made as to the fact that microbes which are most times present in water are responsible for illness and that chlorine or ozone can be used to eradicate them.
Direct Contact Membrane Distillation (DCMD) system
We could tap into the ocean water and make it available for use for everyone but that means a technology for removing the salt is very much needed, but recent technologies have been efficient. However, a good process is available and this was developed by the New Jersey institute of Technology termed Direct Contact Membrane Distillation (DCMD) system. This system is efficient in the sense that it can produce a maximum of 80 liters of drinking water from 100 liters of seawater. This yield is twice the amount the previously existing technologies can yield. One major shortcoming of this system is that it needs a constant and steady heat source so as to reduce or probably prevent water temperature on the membrane sides from matching up.
This device makes use of copper nanoparticles or silver to eliminate bacteria by killing them. Nanotechnology, which is based on the engineering of very small objects and particles has a great deal of ability to aid cleaning up the global drinking water. From research findings, it was discovered that fashioned filters from carbon nanotubes and fibers of alumina could perhaps be able to eliminate not only bacteria and sediments but also arsenic among other toxic elements.
Using nanofilters has a good advantage because they are very efficient than the normal purification and filtration systems and them, of course, don’t need much water pressure.
Reverse Osmosis System
The reverse osmosis system is one water purification system widely used because is only this system that has the ability to eliminate biological impurities and microbes. This system also improves the taste and odour of water. Although this system has a great tendency of getting rid of essential minerals from purified water but there are of course other systems that are equipped with more advanced technology thereby ensuring a greater retaining ability of essential minerals. When looking out to buy this system, it is best you base your judgement not on its beautiful to look and it’s several stage mechanism of purification but you should buy one only if your water contains high-level total dissolved solids. The major part of this system is the RO membrane. This system’s lifespan in actual use is enhanced by filters which would need replacement in after a period of use.