What is Reverse Osmosis in seawater treatment?

What is Reverse Osmosis in seawater treatment?

There are three main seawater treatment methods, among them, RO is the most popular one. Due to its characteristics, it consumes less energy and has a hThere are three main seawater treatment methods, among them, RO is the most popular one. Due to its characteristics, which consumes less energy and has a high desalination rate, RO has been widely used in many seawater desalination plants.

Systems for seawater reverse osmosis are made to eliminate more than 99% of saline contamination in the feed water. For the purpose of removing sodium chloride, preventing scaling, and maintaining system performance, these systems also include a washing, and chemical purification device. Reverse osmosis membranes and high pressure feed pumps are the two essential parts of every seawater reverse osmosis system. Any reverse osmosis system's core components require specific application and thought to function properly.

In SWRO(seawater reverse osmosis), one thing that should be noticed and can not be ignored is prefiltration for SWRO. Compared to surface water and groundwater resources, seawater resources often have a higher tendency for membrane fouling and require more thorough prefiltration procedures.

Process of seawater desalination


Every day Bother Filtration?helps?thousands of desalination plants?to reduce their water footprint, increase productivity, and lower operating expenses. We are helping millions of people live healthier lives by developing better ways to purify the world’s water sources, improve food processes, and more.?Below is a brief introduction to seawater desalination.

The first step:?Sea?water prefiltration

Many particles such as sand, clay, and natural organic matter can be removed by prefiltration for SWRO.

The second step:?Debrine?&?Reverse Osmosis

In this stage, debrine is accomplished through RO. At the same time, 50% water can be output. Water passes through the RO membrane to remove the tiniest particles and contaminants.

The third step:? Stabilization

During this step,?the pH level is adjusted and 50% water output,?then we get purified water.

Filtration?system?of seawater desalination

Now?we?already have a good knowledge of filtration for?seawater desalination. We will simplify it into?three main filtration steps.

Protection filtration for RO system

We use different micron ratings of filter cartridges to eliminate various sizes of contaminants. By removing those particles, we can protect our RO system, and improve the efficiency of the RO system. There are mainly three different micron ratings, which are micron filtration(to filter germs between0.1~1um), Ultrafiltration (to filter protein?and virus between0.01~0.1um),?and Nanofiltration (to filter salt between?0.001~0.01um).


If you have any problem with sea water filter cartridges and RO systems, or you want to have professional suggestions, please feel free to contact us at [email protected].

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