Desalination is the process of eliminating mineral components, especially salt from seawater, thereby rendering water suitable for human consumption as well as for various other industrial and agricultural purposes. Desalination plants installed in industries provide potable water for the population surrounding the industry as well as provide high-quality water for use in industrial processes. Incorporating these desalination systems in industries is beneficial to the industry as well as the environment. With increasing water scarcity issues around the world, and availability of around 3% freshwater out of all the water in the world, directs us to move towards desalination strategies. Industries find the implementation of desalination plants as a huge advantage due to many factors.
Desalination plant- A blessing in disguise
Desalination involves two main processes: distillation and membrane filtration process. While the distillation system involves the separation of salt from water by repeated boiling and condensation of the seawater or wastewater, the water filtration system prevents the salt components from entering into the potable water, that is, it filters out the salt from the potable water. Industries use this strategy to create a desalination and water treatment plant, wherein they can use high-quality water from seawater for their industrial processes and the water obtained by treating wastewater for cooling the condensers and for other purposes.
Affordable and apt for specific locations
While large scale desalination plants may be quite expensive, small scale plants are affordable and can be used to create fresh water for specific locations and remote settlements as well as provide fresh water for industrial purposes. The industrial water purification system ensures the quality of water irrespective of the climate. It can effectively secure water supply for the growing population during climate change or even during times of drought and famine. The cost of a desalination system is reliant on various factors such as the capacity of the plant, proximity of water source, energy source, and so on.
However, it is cheaper to desalinate brackish or industrial wastewater than seawater. As a result of establishing desalination plants, the transport costs for fetching water to water-stressed areas are drastically decreased.
By-product can also be used for various purposes
Also, the by-products of desalination can be put into effective use for various purposes adding benefit to the industry. It relies on a constant water source, unlike other strategies that rely on uncontrollable factors like rain, snow, etc. Since seawater is an inexhaustible source of water, utilizing it to provide potable water that is completely safe and reliable for drinking, ensures a secure water source for the generations to come. These desalination plants are located at a long distance from residential areas, in the midst of the industrial sector, ensuring that the residential areas are not at risk.
Advancement in technology – The modern desalination system
The modern desalination plants involve the implementation of sophisticated water filtration systems such as Reverse Osmosis (RO) filtration system or even Nano-filtration systems which are found to be energy efficient and tend to lower the operating and investment costs. Data logging facility in modern plants makes the monitoring and controlling the plant easy and simple. Few industrial water purification systems are even powered by solar energy, thereby eliminating the issues related to electricity and minimizing the operating costs.