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Reverse Osmosis Equipment

SCKJ-FST-
The processing capacity is 0.5 tons/hour to 1000 cubic meters/hour, which can be customized according to user needs. The production cycle is to be determined after negotiation.

Reverse osmosis equipment is to pass raw water through fine filters, granular activated carbon filters, compressed activated carbon filters, etc., and then pressurize it through a pump, using a reverse osmosis membrane (RO membrane) with a pore size of 1/10000μm (equivalent to 1/6000 of the size of E. coli and 1/300 of the size of viruses) to turn high-concentration water into low-concentration water, while isolating all impurities such as industrial pollutants, heavy metals, bacteria, viruses, etc. that are mixed into the water in large quantities, so as to achieve the physical and chemical indicators and hygiene standards specified for drinking.

Reverse osmosis equipment uses membrane separation technology to effectively remove charged ions, inorganic substances, colloidal particles, bacteria and organic substances in water. It is a commonly used equipment in high-purity water preparation, brackish water desalination and wastewater treatment processes. It is widely used in electronics, medicine, food, textiles, chemicals, power generation and other fields.

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Features Technical Indicators Overall Dimension

Principle
Reverse osmosis is a membrane separation technology that uses pressure as a driving force by means of the power of selective permeable (semi-permeable) membranes. When the pressure applied to the system is greater than the osmotic pressure of the influent solution, water molecules continuously pass through the membrane, flow into the central tube through the water production channel, and then flow out at one end. Impurities in the water, such as ions, organic matter, bacteria, viruses, etc., are retained on the inlet side of the membrane, and then flow out at the concentrated water outlet, thereby achieving the purpose of separation and purification.
System composition

● Pretreatment system
Generally includes raw water pump, dosing device, quartz sand filter, activated carbon filter, precision filter, etc. Its main function is to reduce the pollution index of raw water and other impurities such as residual chlorine to meet the inlet requirements of reverse osmosis. The equipment configuration of the pretreatment system should be determined according to the specific conditions of the raw water.
● Reverse osmosis device
Mainly includes multi-stage high-pressure pump, reverse osmosis membrane element, membrane shell (pressure vessel), bracket, etc. Its main function is to remove impurities in water so that the outlet water meets the use requirements.
● Post-treatment system
Additional configuration when reverse osmosis cannot meet the water output requirements. Mainly includes one or more equipment such as anion bed, cation bed, mixed bed, sterilization, ultrafiltration, EDI, etc. The post-treatment system can improve the water quality of reverse osmosis water to meet the use requirements.
● Cleaning system
Mainly composed of cleaning water tank, cleaning water pump, and precision filter. When the reverse osmosis system is polluted and the water output index cannot meet the requirements, the reverse osmosis needs to be cleaned to restore its efficacy.
● Electrical control system
Used to control the normal operation of the entire reverse osmosis system. Including instrument panel, control panel, various electrical protection, electrical control cabinet, etc.

Main process flow
① Raw water tank (optional)
Store raw water for precipitation of large sediment particles and other precipitable substances in the water. At the same time, buffer the impact of unstable water pressure in the raw water pipe on the water treatment system (such as the reaction of pressure sensor caused by too low or too high water pressure).
② Raw water pump
Constant system water supply pressure and stable water supply. ③ Multi-media filter
The filter with multiple filter layers is mainly used to remove sediment, rust, colloids, suspended matter and other particles above 20um in the raw water. Manual valve control or fully automatic controller can be used for backwashing, forward flushing and other operations. Ensure the water quality of the equipment and extend the service life of the equipment.
④ Activated carbon filter
The system uses fruit shell activated carbon filter. Activated carbon can not only adsorb electrolyte ions, but also perform ion exchange adsorption. The activated carbon adsorption can also reduce the oxygen consumption (COD) of potassium permanganate from 15mg/L (O2) to 2~7mg/L (O2). In addition, due to the increase in the concentration of adsorbed and replicated surfaces due to adsorption, it also plays a catalytic role, removes pigments, odors, a large amount of biochemical organic matter in the water, reduces the residual chlorine value of the water and pesticide pollutants, and removes trihalides (THM) and other pollutants in the water. Manual valve control or fully automatic controller can be used for backwashing, forward flushing and other operations. Ensure the water quality of the equipment and extend the service life of the equipment. At the same time, the equipment has a self-maintenance system and the operating cost is very low.
⑤ Ion softening system/dosing system
In order to concentrate and discharge dissolved solids and utilize fresh water, the R/O device prevents the concentration product of CaCO3, MgCO3, MgSO4, CaSO4, BaSO4, SrSO4, SiSO4 from being greater than its equilibrium solubility constant and crystallizing at the concentrated water end, especially at the concentrated water side of the last membrane component of the RO device, which damages the proper characteristics of the membrane original. Before entering the reverse osmosis membrane component, an ion softening device or an appropriate amount of scale inhibitor should be used to prevent the crystal precipitation of carbonate, SiO2, and sulfate.
⑥ Precision filter
Precision filters are used to remove suspended solids, non-straight particles, colloids and other substances remaining in the influent, making the operation of subsequent equipment such as the RO system safer and more reliable. The filter element is a 5um melt-blown filter element, the purpose of which is to remove impurities larger than 5um that are missed by the upper filter unit. Prevent it from entering the reverse osmosis device to damage the surface of the membrane, thereby damaging the desalination performance of the membrane.
⑦ Reverse Osmosis System
The reverse osmosis device uses sufficient pressure to separate the solvent (usually water) in the solution through the reverse osmosis membrane (or semi-permeable membrane). Because this process is opposite to the direction of natural osmosis, it is called reverse osmosis. The reverse osmosis method can adapt to various types of raw water with salt content, especially in high-salt water treatment projects, it can obtain good technical and economic benefits. The reverse osmosis method has a high desalination rate, high recovery rate, stable operation, small footprint, and easy operation. While removing salt, the reverse osmosis equipment also removes most bacteria, colloids and large molecular weight organic matter.
⑧ Ozone sterilizer/ultraviolet sterilizer (optional)
Kill bacteria generated by secondary pollution to thoroughly ensure the hygienic indicators of finished water.
Equipment features
● No heating required, low energy consumption
● Stable operation, strong adaptability
● No pollution to the environment
● Advanced technology, reliable quality, strong scalability
● A good balance between water utilization and product life
● Fully automatic operation, simple operation and maintenance
Operation parameters
● Water output 0.25m³/h-150 m³/h
● Water conductivity <.10us/cm
● Recovery rate 50-75%
● Operating pressure 1-1.5Mpa
Scope of application
● Preparation of sterile, non-pyrogenic purified water for pharmaceutical and medical industries.
● Ultrapure water for electronics and power industries.
● Water for chemical ingredients.
● Solution distribution and parts rinsing water for electroplating and coating industries.
● Water for precision instruments, optoelectronic materials, and quartz products industries.
● Water for food and beverage industries.
● Drinking purified water, etc.