Desalination – Understanding the Concept

desalination submersible pumps

Being a leading Indian manufacturer of submersible pumps, Darling Pumps has been the Chief Architect of Submersible Pump Revolution in India. Our new & innovative product line has set a benchmark for others to follow and has thus always kept us one step ahead of the market. We offer a wide range of sewage, slurry and dewatering submersible pumps in India and countries abroad. To add to our innovative product line, we have introduced pumps for desalination. A unique concept, desalination is getting a lot of attention these days.

In this blog, we will be discussing the process of desalination. Moreover, we will also be discussing the various methods that one can use to execute the process of desalination. For starters let’s take a look at what the whole process of desalination is all about.

The Process of Desalination

The process of desalination is used in order to extract mineral components from saline water. Put in simple words, desalination means the removal of minerals and salts from a target substance.

When water is to be produced for human consumption or irrigation then the saltwater is desalinated for the same. Salt is one of the by-products of desalination. When we talk about the modern interest in the process of desalination, it is majorly focused on a cost-effective way to provide fresh water for the use of humans. The process of desalination is also used on many submarines as well as seagoing ships. It becomes one of the few rainfall-independent water sources.
The water obtained after the process of desalination is generally more healthy than the water that is obtained from groundwater and rivers. Moreover, it is found that there is much less salt as well as limescale in the desalinated water.

There are various methods attached to the execution of the process of desalination. Each method has its own advantages as well as disadvantages. Let’s have a look at the list of these methods –

    • Vacuum distillation


    • Multi-stage flash distillation


    • Multiple effect distillation


    • Vapor-compression distillation


    • Reverse osmosis


    • Freeze-thaw


    • Solar evaporation


    • Electrodialysis reversal


    • Membrane distillation


    Wave-powered desalination

Every seawater desalination method consumes different amounts of energy. This includes thermal energy as well as electrical energy.

When we think about the costs that go in while executing the process of desalination, there are various factors that decide this. A few of these factors include the type of facility, capacity, feed water, and location. On top of these factors some other are energy, financing, labor, as well as concentrate disposal.

Another challenging factor in desalination is pumping process. Not all pumps & metals which are available in the market can work in sea water. Darling Pumps over the years have successfully supplied pumps for many sea water related applications & pumping. The metal used here is exclusive & very reliable.

Just for your information, for desalination, type of pumps is less relevant compared to the MOC & its reliability. Darling Pumps is proud to offer pumps for desalination. We have offered pumps for Sea water in Duplex or SS316L series. For more information on desalination, get in touch with us at +91 99819 92833.