Reverse Osmosis Equipment Introduction
Reverse osmosis water treatment equipment generally consists of three parts: raw water pretreatment system, reverse osmosis purification system and ultra-purification post-treatment system. The main purpose of pretreatment is to make raw water meet the inlet water requirements of reverse osmosis membrane separation components and ensure the stable operation of the reverse osmosis purification system. The reverse osmosis membrane system is the most economical and efficient purification method to remove more than 98% of ions, organic matter and 100% of microorganisms (theoretically) in raw water at one time.
Working Principle of Reverse Osmosis Equipment
Reverse osmosis is the most precise membrane liquid separation technology. Operating pressure is applied on the inlet (concentrated solution) side to overcome the natural osmotic pressure. When the operating pressure higher than the natural osmotic pressure is applied to the concentrated solution side, the natural permeation flow direction of water molecules will be reversed. Part of the water molecules in the inlet (concentrated solution) pass through the reverse osmosis membrane to become purified product water on the dilute solution side. Reverse osmosis equipment can block all dissolved salts and organic matter with molecular weight greater than 100, while allowing water molecules to pass through. The desalination rate of reverse osmosis composite membrane is generally more than 98%. It is widely used in industrial pure water and electronic ultra-pure water preparation, drinking purified water production, boiler feed water and other processes. The use of reverse osmosis equipment before ion exchange can greatly reduce the discharge of process water and wastewater.
Advantages of Reverse Osmosis Equipment
Reverse Osmosis (RO) technology separates water and ions driven by pressure to achieve the purpose of purification and concentration. The process has no phase change, generally no heating required and low energy consumption. It has many advantages such as low operating cost, no pollution, easy operation, reliable operation and high produced water quality, making it the most energy-saving technology for seawater and brackish water desalination. It has been widely used in pharmaceutical, electronic, chemical, food, seawater desalination and many other industries. Reverse osmosis technology has become the preferred water treatment technology in modern industry and an important part of membrane separation technology.
(1) Fresh water can be extracted from seawater or brackish water;
(2) It can easily remove organic matter, bacteria, colloids and other impurities dissolved in water to obtain high-purity water;
(3) The reverse osmosis process is a physical process without phase change, thus saving energy;
(4) Simple operation, easy to realize automation and save labor;
(5) Compact structure and small footprint, thereby reducing costs;
(6) As a concentration method, it can recover valuable components dissolved in the solution.
Application Fields of Reverse Osmosis Equipment
(1) Power industry: Boiler make-up water, cooling water;
(2) Electronic industry: Ultra-pure water for semiconductor industry, cleaning water and formula water for integrated circuits;
(3) Food industry: Formula water and production water;
(4) Pharmaceutical industry: Process water, preparation water, washing water, water for injection and sterile water preparation;
(5) Beverage industry: Formula water, production water and washing water;
(6) Chemical industry: Production water and wastewater treatment;
(7) Water supply project: Ultra-pure water preparation and drinking water purification;
(8) Petrochemical industry: Oilfield injection water and advanced treatment of petrochemical wastewater;
(9) Seawater desalination: Production and domestic water for island areas, coastal water-scarce areas, ships, offshore oilfields, etc.;
(10) Environmental protection field: Recovery of precious metals and water from electroplating rinsing water to achieve zero or micro discharge.
Process Flow of Reverse Osmosis Equipment
In summary, with mature working principle, stable system advantages and complete process flow, reverse osmosis equipment has been widely used in water treatment scenarios of various industries. If you want to know more about equipment selection, customized solutions and engineering cases of reverse osmosis equipment, please visit the homepage of ourXi'an DIEN Water Treatment Official Website to get one-stop pure water preparation solutions.
