What is Reverse Osmosis?
Reverse osmosis is a technique for removing the vast majority of pollutants from water by forcing it through a semi-permeable membrane under pressure.
To comprehend the purpose and operation of RO, you must first comprehend the natural osmosis process.
Osmosis is the natural occurrence and one of the most essential natural processes. A weaker saline solution will prefer to move to a stronger saline solution throughout this process. Plant roots take water from the earth, and our kidneys absorb water from our blood, both of which are examples of osmosis.
A solution with a lower concentration will naturally migrate to a solution with a greater concentration. If you had a container full of water with a low salt concentration and another container full of water with a high salt concentration separated by a semi-permeable barrier, the lower salt concentration water would begin to migrate towards the higher salt concentration water container.
What is Single pass and Double pass Reverse Osmosis systems?
The terms "stage" and "pass" are frequently misunderstood as interchangeable. It's crucial to know the difference between a 1 and 2 stage RO, as well as a 1 and 2 pass RO.
The feed water enters the RO system as a single stream and departs as either concentrate or permeate water in a one-stage RO system.The concentrate from the first stage provides the feed water for the second stage in a two-stage RO system. The permeate water collected in the first step is blended with the permeate water obtained in the second stage. Additional steps speed up the system's recuperation.
The"pass" should be regarded as a self-contained RO system.
A double pass RO system differs from a single pass RO system in that the permeate from the first pass becomes the feed water for the second pass (or second RO), resulting in a significantly better quality permeate because it has basically gone through two RO systems.
Consider a pass to be a standalone RO system. With this in mind, the difference between a single pass RO system and a double pass RO system is that the permeate from the first pass becomes the feed water for the second pass (or second RO), resulting in a significantly better quality permeate because it has basically gone through two RO systems.
A two-pass system not only produces a higher-quality permeate, but it also allows for the removal of carbon dioxide gas from the permeate by introducing caustic between the first and second passes.
When you have mixed bed ion exchange resin beds after the RO, C02 is undesired. Increase the pH of the first pass permeate water and convert CO2 to bicarbonate (HCO3-) and carbonate (CO3-2) for improved rejection by the RO membranes in the second pass by adding caustic after the first pass. Because injecting caustic and producing carbonatein the presence of cations like calcium would induce scaling of the RO membranes, this can't be done with a single pass RO.
How can we help?
Netsol Water will develop a complete reverse osmosis water treatment system based on the quality of your input water and the products you need. When necessary, passes and stages will be implemented. We integrate RO technology with the necessary pre-treatment and post-treatment to deliver long-term and full solutions.
Benefits of using our water treatment solutions
1: Engineered and custom-designed solutions for one-of-a-kind requirements;
2: Design, engineering, manufacture, automation, installation, maintenance, and training are all included in turnkey systems;
3: Water and wastewater treatment, recycling, reuse, and disposal using cutting-edge technology.
4: On-line help and on-site service and support are at our best.
We may be reached via phone at +919650608473 or by email at enquiry@netsolwater.com
