Preparation of space water, purified water, distilled water, etc .; alcohol blending; preliminary preparation of water for the pharmaceutical and electronics industries; concentration, separation, purification, and preparation of water distribution for chemical processes; desalination of boiler make-up water; brackish water desalination; papermaking, electroplating Water for printing, dyeing and other industries.
Principle of reverse osmosis
RO (Reverse Osmosis) reverse osmosis technology is a membrane separation and filtration technology that uses pressure difference as the driving force. It originated from the research of aerospace technology in the United States in the 1960s and has gradually been converted into civilian use. It has been widely used in scientific research, medicine, and food. , Beverage, chemical, power, electronics, papermaking and other fields.
The RO reverse osmosis membrane has a pore size as small as 1 nanometer (1 nanometer = 10-9 meters). Under a certain pressure, H2O molecules can pass through the RO membrane, and inorganic salts, heavy metal ions, organic substances, colloids, bacteria, viruses, etc. in the source water. Impurities cannot pass through the RO membrane, so that pure water that is permeable and concentrated water that is permeable are strictly distinguished.
Reverse Osmosis Schematic
Generally includes pre-treatment system, reverse osmosis device, post-treatment system, cleaning system and electrical control system.
The pretreatment system generally includes raw water pump, dosing device, quartz sand filter, activated carbon filter, precision filter and so on. Its main function is to reduce the pollution index of raw water and other impurities such as residual chlorine, to meet the requirements of reverse osmosis. The equipment configuration of the pretreatment system should be determined according to the specific conditions of the raw water.
The reverse osmosis device mainly includes a multi-stage high-pressure pump, a reverse osmosis membrane element, a membrane shell (pressure vessel), and a bracket. Its main role is to remove impurities in the water and make the effluent meet the requirements for use.