Humans are concerned about the availability of potable water since, clearly, humans require water to thrive. A lack of or diminishing freshwater sources is a cause for concern. Large populations can place a strain on existing resources in arid climates, which produce little or no fresh surface water. As a result, it is becoming increasingly important to manage our water resources.
Water scarcity is producing a slew of geopolitical and humanitarian issues as populations turn to the sea and formerly useless brackish sources as demand for fresh water rises. Desalination can be used to make fresh water both from seawater and brackish water, that is less saline than seawater but also too salty for ingestion.
We, Netsol Water, invent and improve technology with the goal of sustainability in mind. We want to make products that are more energy efficient, less expensive, and have fewer negative consequences on the environment, all while generating more at a faster rate. For the sake of the environment, we favour desalination technology, which is a procedure that removes dissolved minerals from saline water.
What is ocean desalination?
The process of transforming salt water into fresh water is known as ocean desalination. This is accomplished by a series of procedures that separate water and salt molecules.
To make seawater drinkable, there are two basic approaches-
1. One method is to convert water to steam. It's essentially a distillation process, because water is the only component that changes state at a specific temperature, rising and leaving behind the remaining salts and minerals. There are various methods for producing steam, each with its own set of benefits and drawbacks.
2. The other option is reverse osmosis, which is a membrane filtering procedure. Under equal pressure, water naturally flows to the side of a water permeable membrane with a larger concentration of non-water molecules, such as salt, to maintain a salt concentration equilibrium. A pressure differential must be used to drive water into an area with lower salt concentration. With lesser pressure, water would be pulled to the side, leaving the salt behind.
Desalination of Ocean in India
The rest of the globe receiving sufficient yearly rainfall, is endowed with numerous big bodies of freshwater, or has wealthy governments that supply drinkable water to its population.
There could be a link between a country's wealth and its water supply. After all, the world's earliest civilisation was built on the confluence of two rivers.
However, in a country like India, fresh water is scarce, and we must rely on our oceans and seas for drinking water, which are becoming increasingly polluted. As a result, ocean desalination is a cost-effective and water-saving alternative in India.
Ocean desalination sustainable for potable water needs
The vast expansion of potential drinking water sources is the most compelling argument in favour of ocean desalination. Under the right circumstances, however, seawater desalination meets additional sustainability criteria. The environmental impact of the seawater desalination process is mostly determined by the system's design and implementation. Intakes and brine outflow have raised worries about their influence on marine habitats, although these issues can be alleviated with careful planning.
The design of the desalination system has a significant impact on energy consumption. Distillation and reverse osmosis are the two most popular types of desalination systems. Distillation systems employ both thermal and electrical energy, whereas RO uses solely electrical energy.Both, notably heat and pressure, can be tailored to optimise power usage through energy recycling.
The cost of the system varies depending on where it is used. Thermal desalination, on the other hand, is associated with higher capital and operating expenditures. Construction and energy prices show the largest diversity.
Because reverse osmosis systems are more streamlined and modular in design, they have reduced construction costs. Alternative energy sources, such as solar or a solid waste to energy system, can further cut energy costs. Ocean desalination technologies have the potential to deliver a potentially limitless supply of safe drinking water in a sustainable manner all over the planet.When designed by people who are environmentally conscious and use sophisticated technology and an innovative process design, these systems can be deployed at a reasonably low cost with lower fuel input and little to no environmental effect.