Efficient Desalination plants: efficiency and future prospects

Though the earth is covered with 71% of water, not every form is safe for use since most of the water is saline seawater. To tackle this issue, efficient desalination plants came into existence. Various industries have started employing this technique in order to extract usable drinking water. If you are wondering what it is exactly, let us guide you on that front.

What are desalination and efficient desalination plants?

Desalination is the process of extracting potable water from saline water. Primarily, a desalination plant is an industrial-level setup where various physical and chemical methods are employed to recover or reduce the water’s saline content. The setup is such that it will remove all the impurities such as salts and other minerals from the brackish or seawater. Today, most industries rely on these plants due to the increased demand for safe and clean water. Now, let us shed some light on the various benefits of using efficient desalination plants.

Benefits of efficient desalination plants

The demand for efficient desalination plants has increased in the last few years, especially in industrial areas. Let us find out what contributes towards its demand:

  • Freshwater supply to the industries

Even today, there are many places that face scarcity of fresh and clean water, thus increasing its demand significantly. It is especially important if an industry is being set up on a large scale. With desalination plants in place, purifying the brackish or saltwater and making it industry-ready is quite easy. The plants are equipped with modern technology, thus meeting all the industry’s requirements. Apart from making it industry-ready, the water becomes potable too as the desalination process gets rid of minerals and salt.

  • Improvement in water quality

Today, there is sufficient availability of seawater and brackish water. Since they can’t be directly used for industrial purposes, the water should undergo some of the purification processes, thus making it ideal for manufacturing applications. With efficient desalination plants in place, the purification process becomes hassle-free. The application of advanced technologies in the setup contributes to effective purification, thereby improving the water quality.

  • Elimination of water scarcity nuisance

For efficient running of factories, it is paramount to have access to clean and fresh water all the time for all the manufacturing processes. However, it is not always possible to find a freshwater source near the industry setup. Thus, industries rely on efficient desalination plants. These plants help in combating water scarcity issues. In addition, it helps the factory in the manufacturing process and the community to get access to clean drinking water.

  • Safe application of water

An efficient desalination plant is employed to extract water free from minerals and salt concentration; thus, it makes it ideal water for various industrial applications. The application of cutting-edge technology and innovation in the plant setups helps get rid of the time-taking process. Moreover, the desalination process is not all about meeting all the emergency manufacturing or production requirements. The process also helps businesses grow.

These were some of the amazing advantages of using efficient desalination plants. However, there are different desalination methods; therefore, it is best to consider all the requirements and make an informed decision.

Different methods of desalination plants

One of the key factors of a desalination plant is the kind of desalination process the plant employs. If you are looking for efficient desalination plants, the first thing to consider is the kind of method used and then employ the method that works best for your industry. They are:

  • Direct Osmosis Plants

In this process, an osmotic pressure gradient is used for water diffusion through a semipermeable membrane. This is a natural process as the process of diffusion takes place from a low concentration solution to a high concentration solution. It is extensively used for desalination, water purification, and wastewater treatment.

  • Membrane Distillation plants

In this process, a vapor pressure gradient develops inside the membrane, thereby differentiating the volatile and non-volatile substances from each other. This process results in the production of good-quality water. With a proper desalination plant supplier, it is considered a quite effective method.

  • Reverse Osmosis and Nanofiltration

In this setup, the membrane is used as a selectively permeable barrier. The barrier filters out everything other than water, so when saline water or brackish pass through it, all the salts and minerals are filtered out, resulting in a water-free of other substances. Most industries prefer this process due to the ease of application and convenience it offers.

  • Multi-effect evaporation and multistage flash evaporation

The method is based on evaporating water in different stages by exposing it to multiple pressure conditions and temperatures. Though it is considered as one of the technologically advanced and effective desalination processes, it comes at quite the cost.

These are the various desalination processes commonly used in industries based on their conditions, cost, and resources available. Now, if you are still in a dilemma due to its energy consumption, let us shed some light on it in brief:

Energy used inefficient desalination plants

The energy consumption of different desalination plants is dependent on numerous factors and is not just limited to the desalination method employed. It can be TDS concentration, plant capacity, concentrate discharge, the temperature of source water, and the plant’s location with respect to the water source. However, if we look at it from a water-energy nexus perspective, there are three approaches that offer energy-saving options in desalination plants. They are cogeneration plants, colocated plants, and hybrid plants.


Water scarcity has become a major problem, and it is not specific to just some parts; it is happening globally due to the shortage of freshwater sources. Also, the transportation cost of bringing water to demanding areas can be a big hassle. This situation has led to a renewed focus on using efficient desalination plants to derive suitable water from seawater or brackish water.


Are you in need of fresh and clean water for large-scale industrial applications? Then, choose Keiken Engineering and take your first step towards it. It is a young, dynamic, and agile company offering an extensive range of products and advanced solutions for water treatment, desalination, energy efficiency, and industrial project management. Get in touch today at info@keiken.es.