Introduction to Reverse Osmosis Water Plant

Reverse Osmosis Water Plant is a cutting-edge water purification technology that uses a semi-permeable membrane (RO membrane) to remove dissolved substances such as salt, bacteria, viruses and other impurities from water. During operation, water is pressurized by a high-pressure pump. When the pressure exceeds the natural osmotic pressure, it is forced to pass through the RO membrane; the pore size of this membrane is extremely small, allowing only water molecules to pass through, while most pollutants are blocked. This process is called "reverse osmosis". Reverse osmosis water purification equipment usually includes key parts such as pretreatment, membrane separation, high-pressure pumps and post-treatment. Its effluent quality is extremely high and can meet strict water quality standards. It is widely used in drinking water purification, medicine, laboratories, and industrial water. Although a certain amount of wastewater containing concentrated pollutants will be generated, its efficient purification capacity and relatively low energy consumption make it one of the important technologies for water resource management and protection.

Reverse Osmosis Pure Water Plant Composition

The reverse osmosis pure water system is generally composed of pretreatment devices (including quartz sand filters, activated carbon filters, precision filters), softening devices (if necessary), booster pumps, high-pressure pumps, membrane shells, reverse osmosis membrane elements, field instruments, dosing systems, fully automatic control systems, rack platforms and other components.
1. Pretreatment system: usually includes steps such as filtration, softening or chemical agent addition, which are used to remove suspended matter, chlorine, organic matter and prevent membrane scaling.
2. High-pressure pump: Increase the water pressure to a level sufficient to overcome the osmotic pressure, so that water molecules pass through the RO membrane in reverse.
3. RO membrane element: As a core component, it only allows water molecules to pass through, while preventing most dissolved salts, bacteria and macromolecules from penetrating.
4. Flow controller: adjusts the flow rate of produced water and concentrated water to ensure the efficiency of the system.
5. Storage and post-treatment system: includes water storage tanks and possible post-treatment equipment, such as ultraviolet disinfection or carbon filtration.

Features of Reverse Osmosis Pure Water Plant

Efficient decontamination ability: It can remove a variety of pollutants, including dissolved salts, particles, bacteria and pyrogens.
High water quality: Water treated by RO can achieve extremely high purity and is suitable for multiple purposes, including drinking and industrial water.
Low energy consumption: Compared with other separation processes, the energy required by RO systems during operation is relatively low.
High degree of automation: Modern RO systems can achieve highly automated control, reducing the need for manual operation and the error rate.
Less wastewater is generated: Although a certain amount of concentrated water will be generated, the amount of wastewater is acceptable relative to its treatment capacity and effect.

Application areas of reverse osmosis pure water plant

1. Seawater desalination: With its efficient desalination ability, RO technology occupies an important position in the global seawater desalination field. This technology can remove dissolved salts in water and convert seawater into drinkable fresh water.
2. Industrial pure water preparation: In industrial production that requires high-purity water quality, such as electronic ultrapure water preparation, RO technology also plays a key role. It can ensure that the water quality used in the production process meets strict standards.
3. Wastewater reuse: RO technology is also applicable to industrial and municipal wastewater, which helps reduce environmental pollution and improve the recycling rate of water resources.

RO water treatment system is a method of using semi-automatic membrane technology for the application of water purification based on the principle of osmosis phenomenon and osmosis pressure of yes of solution. In a natural condition, water molecules absorb semi-seepage from low concentration solution to high concentration solution, A process is to reduce the difference of concentration between the two sides until balancing is achieved. Ro is a artificial reverse of this process, which means by applying higher pressure than the external osmosis pressure, tying water molecules from high-concentration solution to low-concentration solution, thereby reaching the purpose of purification.

In RO water treatment system, rough water after pre-treated to eliminate suspension, chlorine and some organic substances, filled with high pressure which is higher than its osmosis pressure. High pressure water is then sent to RO membrane element with micro aperture and select transmission ability, only allows water molecules to pass through and prevent majority of soluble substances such as salt and bacteria. Therefore, when water contact RO membrane, the water molecules enter back through the membrane under the action of pressure to the pure water, while the solubility are trapped at the rough water side, producing two parts of the water flow: One side is pure water (water production) that removes contaminants and the other side is sewage (concentrated water) that contain concentrated pollution.

RO membrane is the core of the whole system and its performance affect directly the separation efficiency and operation efficiency of the system. Film selection must consider the listed ability, water flux, and its anti-pollution to different electrolytes. To maintain ro performance and extend life, the system should be regularly washed in physical or chemical to eliminate accumulated dirt and grow of creatures.

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