Product introduction and principle

Reverse osmosis, referred to as RO, is a practical technology to selectively permeate certain components in the solution under the action of external pressure, so as to achieve the purpose of desalination, purification or concentration and separation. The reverse osmosis device is used in water treatment projects, it can remove most of the ions in the water, and can also remove impurities such as fine particles, bacteria and organic matter in the water. The reverse osmosis device is an advanced and economical means in the current water treatment equipment. The reverse osmosis process is to use a high-pressure pump to continuously pressurize the water with high salt content to the RO device. The RO device includes reverse osmosis membrane elements and membrane shells. The influent water is divided into low-salt permeate and high-salt concentrate, and the proportion of the water supply into the concentrate and permeate is controlled by a regulating valve.

Reverse osmosis device is suitable for desalination of brackish water, removal of high hardness of water, food, beverage, canned purified water and other fields.

The reverse osmosis device relies on the static pressure difference on both sides of the membrane as the power, only allows the solvent (usually water) to pass through, and the membrane separation device that intercepts ionic substances, the removal rate of various ions in water is shown in the following table< /p>

Technical Features

1. The parts and components are imported or domestic high-quality products with advanced technology;

2. High degree of integration and reliable quality;

3. High degree of automation, stop immediately in case of failure, with automatic protection function;

4. High desalination rate, up to more than 97%;

5. High-efficiency, low-noise imported high-pressure pumps are used to reduce operating noise;

6. Reduce energy consumption, thereby reducing operating costs;

7. Reasonable structure, less floor space, more than 30% space saving compared with conventional methods;

8. The advanced membrane protection system is adopted. When the equipment is stopped, the demineralized water will automatically flush the pollutants on the membrane surface to prevent scaling and prolong the life of the membrane;

9. The system does not need a lot of maintenance and can run continuously for a long time;

10. The water quantity and water quality of the equipment can be designed with professional software according to the requirements of use to achieve the best cost performance.

System Components

Preprocessing part

The pretreatment of reverse osmosis water treatment system is often composed of quartz sand filter, activated carbon filter, security filter, etc. The main purpose is to remove sediment, rust, colloidal substances, suspended solids, pigments, and odors contained in raw water. , biochemical organic matter, reduce the residual ammonia value of water and harmful substances such as pesticide pollution. If the content of calcium and magnesium ions in the raw water is high, it is necessary to add a soft water device, the main purpose is to protect the reverse osmosis membrane of the latter stage from being damaged by large particles, thereby prolonging the service life of the reverse osmosis membrane.

Reverse osmosis host

It is mainly composed of high-pressure pump, membrane shell, reverse osmosis membrane, control circuit, etc. It is the core part of the entire water treatment system. The quality of the produced water also depends on this part. As long as the model of the membrane and the model of the high-pressure pump are properly selected, the filtration capacity of the reverse osmosis host to the salt in the water can reach more than 97%, and the conductivity of the effluent can be guaranteed to be within 15µs/cm.

Post-processing section

Mainly to further process the pure water obtained by the reverse osmosis main mechanism. If the subsequent process is connected to ion exchange or electrodeionization (EDI) equipment, industrial ultrapure water can be produced. If it is used in civilian direct In the drinking water process, a post sterilization device is often connected, for example, an ultraviolet sterilizer can be connected, so that the water can be directly drunk.

Cleaning section

In order to ensure the normal operation of the reverse osmosis water treatment system and prolong the service life of the reverse osmosis membrane elements, when the reverse osmosis system runs for a period of time, it is necessary to remove calcium carbonate scale, metal oxide scale in water, biological growth (bacteria, fungi, mold, etc.) and other substances, the system needs to be cleaned.