Reverse osmosis water treatment equipment uses advanced reverse osmosis desalination technology internationally to prepare deionized water, which is a purely physical process preparation technology. The reverse osmosis pure water unit has the advantages of long-term uninterrupted operation, high degree of automation, easy operation, long-term stable effluent quality, no pollutant discharge, and low cost of producing pure water. Reverse osmosis membrane technology has been widely used in domestic fields such as medicine, biology, electronics, chemical engineering, power plants, and sewage treatment.

Application scope:

Preparation of pure water and ultrapure water in industries such as electronics, pharmaceuticals, and food;

Purification and preparation of water for textile and chemical industries;

Purification and preparation of water for food and beverage, as well as water for brewing processes;

Concentrate and recover useful substances from aqueous solutions in industrial production;

Pre desalination treatment of high-pressure boiler feedwater for power plants and other enterprises;

◆ Desalination of brackish water and seawater;

As a primary desalination equipment for high-purity water production.

Reverse osmosis principle

Reverse osmosis is the process of separating a solvent (usually water) from a solution through a reverse osmosis membrane (a semi permeable membrane) under sufficient pressure, with the direction opposite to the direction of permeation. It can be used to separate, purify, and concentrate solutions using reverse osmosis methods with pressures greater than the osmotic pressure. The main separation target of reverse osmosis membrane is the range of ions in the solution. The reverse osmosis pure water system adopts different processes according to the quality of different source water. Generally, municipal tap water (with a conductivity of less than 500 μ S/cm) is treated by a primary reverse osmosis system to produce water with a conductivity of less than 10 μ S/cm, and by a secondary reverse osmosis system to produce water with a conductivity of less than 5 μ S/cm or even lower. After the reverse osmosis system is supplemented with ion exchange equipment or EDI equipment, ultra pure water can be prepared, with a resistivity of up to 18 μ S/cm

M Ω· CM). After aging or contamination of the reverse osmosis membrane, the quality of the produced water will decrease.

Typical process of reverse osmosis pure water preparation

Raw water → sand filter → carbon filter → water softener (dosing and scale inhibition device) → security filter → reverse osmosis system → pure water tank → pure water pump → water user (single-stage reverse osmosis, conductivity ≤ 10 μ s/cm)

Raw water → sand filter → carbon filter → water softener (dosing and scale inhibition device) → security filter → primary reverse osmosis system → pH regulating device → intermediate water tank → secondary reverse osmosis system → pure water tank → pure water pump → water user (dual stage reverse osmosis, conductivity ≤ 5 μ s/cm)

Application scope of deionized water

Laboratory: chemical analysis, fluorescence analysis, detection analysis, genetic research, biological experiments, tissue culture, etc.

Pharmaceutical industry: water for medical infusion, injection preparations, pharmaceuticals, biochemical products, medical sterile water and artificial kidney dialysis water, and water for disinfection supply room ultrasonic cleaning.

Chemical industry: water for chemical reaction cooling, chemical reagents, fertilizers and fine chemicals, and cosmetics manufacturing processes.

Electronic industry: water systems for manufacturing semiconductors, LCD displays, computer hard drives, printed circuit boards, integrated circuit blocks, and cathode ray tubes.

Photovoltaic and solar energy industry: production, processing, cleaning of crystalline materials, as well as production and cleaning water for batteries, dry cells, and solar cells

Power industry: thermal and thermal power generation boilers, medium and low pressure boiler power feedwater systems.

Electroplating and coating industry: surface coating, coated glass, and battery water systems for products such as automobiles, household appliances, and building materials.

Beverage industry: mineral water, purified water, packaged drinking water, fruit juice concentration, alcohol production, pure draft beer filtration, etc.

　　application area

Water used in the pharmaceutical industry

　　Large infusion, injections, tablets, biochemical products, equipment cleaning, etc

Process water for chemical industry

　　Chemical circulating water, chemical product manufacturing, etc

Power industry

　　Boiler feedwater power generation boiler, medium and low pressure boiler power system in factories and mines

Water used in the food industry

　　Drinking purified water, beverages, beer, Baijiu, health products, etc

Desalination of seawater and brackish water

　　Islands, ships, offshore drilling platforms, brackish water areas

purified drinking water

　　Real estate, communities, enterprises and institutions, etc

Ultrasonic cleaning water

　　Ultrasonic cleaning line for special materials, precision machinery, etc. that require high cleanliness

Water usage in the electroplating industry

　　Water for cleaning workpieces, water for tank solution

Other process water

Automotive, home appliance coating, coated glass, cosmetics, fine chemicals, etc

Reverse osmosis devices generally consist of reverse osmosis membrane elements, membrane shells (stainless steel or fiberglass), high-pressure pumps, flow meters, conductivity meters, pressure protection, control boxes, and brackets (stainless steel or carbon steel).

Characteristics of reverse osmosis equipment:

1. The desalination rate can reach up to 98%;

2. Can operate continuously for 24 hours;

3. No need to use acidic or alkaline substances that pollute the environment;

4. Small footprint and large water processing capacity;

5. High degree of automation, almost without manual operation;

6. Low investment cost, low operating expenses, and convenient equipment installation;