Seawater desalination is an important and crucial water treatment method in many areas, where only seawater can be the only water resource. It helps to keep productivity and normal daily life in an arid region. Have you ever thought about, except the usable water, what else we can get from seawater desalination?

sea water desalination

To know more advantages of seawater desalination, we will introduce the basics of seawater desalination reverse osmosis system and everything you need to know about seawater desalination.

What are seawater desalination and SWRO?

Before we talk about the benefits of a seawater desalination system, we need to know some basics about seawater desalination and SWRO.

Reverse osmosis technology is used in desalination to extract water molecules from seawater. Under extremely high pressure, water from the ocean is driven through hundreds of tightly wrapped semipermeable membranes. Smaller water molecules can pass through the membranes, leaving salt and other contaminants behind.

ro system

A quick summary of the various SWRO plant sections is provided below.

Three different kinds of intakes exist:

Deep Sea Intake: As the name implies, seawater is drawn up from the bottom of the deep ocean so that membranes are fed with consistently high-quality water. Large plants typically employ this type.

Open Channel: To provide seawater to the plant site, an open Channel is constructed from the sea. Although it is the least expensive option, this water frequently contains a lot of silt and colloids.

Wells: At the seaside, water is taken out of the phreatic water-table level. Well, intakes offer the benefit of having higher-quality water, making them a desirable choice for desalination facilities. A pump draws water from the wells, and it is then put through various filtration processes to remove sand and other contaminants.

The drawback of this form of seawater intake structure is that due to silting (clogging with tiny particles), which prevents the intake of the required flow volume, the hydraulic capacity will frequently be lowered.

working principle

Depth filters or high-flow filters are typically used in pretreatment to remove colloids and suspended debris. To guarantee consistent feed water quality, few plants also incorporate UF as a pre-treatment.

What benefits we can get from desalination?

Desalination can solve more than water resources problems. It brings not only pure and clean water but also normal and sustainable life.

desalination plant

The most well-known and obvious benefit is having access to clean drinking water in urban areas where water shortages are causing widespread unrest and, worse, fatalities. An ordinary metropolitan metropolis may effectively solve its water shortage issues using this technique.

Even in the most isolated regions, desalination can guarantee that there is access to water for irrigation. This can be done by creating a network through pipes that will benefit agricultural growers. The main issues facing many nations can be resolved all at once when more food becomes available because increasing output will spur economic expansion.

Where there are no other water options at all, water can be made available in drought-stricken areas. This can save a lot of lives as well as a lot of agricultural land.

Water that has been desalinated will be made available to a variety of sectors where it is employed as a base solvent in manufacturing. These enterprises can also construct a desalination facility and utilize it as necessary.

The water quality obtained through the desalination process is superior to that obtained through other filtration methods.

Desalination is not the most cutting-edge technology, but it has been tried and tested over the past ten years, making its adoption even more dependable. Although this technique has several drawbacks, with the correct study and development, it may show to be a viable replacement for finite freshwater resources.

Does the desalination process only remove the salt?

Due to the fact that the procedure can remove more than simply salt from the water source, the word “desalination” might be a little misleading. In reality, the procedure can get rid of dangerous chemicals, metals, or microorganisms that might have gotten into anything through a number of industrial operations or unavoidable natural events. Therefore, desalination is quite important even if you do not live close to the ocean.

sea water

Due to the brackish water found in many desert regions and low flat lands–which were once sea beds millions of years ago–and the high concentration of soluble salts and minerals in the soils. Desalination is a practical technology that can meet the demands of many people, regardless of location.

Does desalination help to protect the environment?

Since fresh water sources are already under so much stress, desalination is becoming more and more popular as an environmentally friendly alternative to further depleting them.

Many rivers’ ecosystems cannot be further depleted without suffering permanent damage. Communities can safeguard their remaining freshwater supplies as vital components of the greater ecosystem by converting salt water into usable water by eliminating salt.

marine life

Also, for the organism and fish in seawater, we can choose to draw water from wells, which can be seen as a prefiltration process for the raw water. And it can help to reduce the stuck problem of marine life. This is a win-win solution for both organisms in the sea and the expensive desalination system.

How to obtain a reliable and useful desalination system?

Systems for treating water are extremely dependable when they are properly built and maintained. Your equipment can last for many years if it is maintained dry and clean, receives regular maintenance, and was built appropriately.


Systems for reverse osmosis can operate continuously without interruption and would actually like to do so. Theoretically, a RO plant would only need to shut down for normal mechanical maintenance like motor bearings, seals, or similar concerns if your source water was absolutely pure (just salty), and free of suspended particles, organics, or other foulants. In fact, membranes shouldn’t be kept in standing water for an extended period of time because they don’t require a break to cool down or renew. So feel free to run them as long as you like at full speed!


Desalination helps people in arid areas to get more usable water to sustain their life and lives. This is a huge water treatment technology progress, which helps millions and thousands of people in the world. The RO technology nowadays has been widely applied to whole-housing water purifying systems, which help more people to get purer and tasty water.

Brother Filtration has been involved in the filtration industry for more than ten years and has done many projects from worldwide seawater desalination plants. You can find more information about our project in a middle east desalination plant, or you can contact us directly. Brother Filtration is always there and ready to help more people solve filtration problems.

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