One Stage Reverse Osmosis 500LPH Ro Pure Water Filtration System Purification Plant

Low pressure membrane:

Due to the advantages of saving energy consumption and reducing the pressure level of related mechanical parts, which leads to the decrease of material cost, the application proportion of ultra-low pressure membrane has been increasing since 1996, which is most prominent in the use of small devices mainly using 4 inch membrane. Take the largest domestic reverse osmosis membrane supplier, American Hedeneng Company, for example, 80% of the 4-inch film sold in the past two years is ultra-low pressure film. The application of ultra-low pressure film in large devices has also shown a significant upward trend. At present, the largest device using ultra-low pressure film in China has a water yield of 650 tons/hour.

Reverse osmosis usually uses asymmetric membranes and composite membranes. The equipment used for reverse osmosis is mainly hollow fiber type or roll type membrane separation equipment.

Reverse osmosis membrane can intercept all kinds of inorganic ions, colloidal substances and macromolecular solutes in water, so as to obtain clean water. It can also be used for preconcentration of macromolecular organic matter solution. Reverse osmosis has been developed rapidly in the past 20 years because of its simple process and low energy consumption. Has been widely used in seawater and brackish water desalination, boiler water softening and wastewater treatment, and combined with ion exchange to produce high purity water, its application range is expanding, has begun to be used in dairy, fruit juice concentration and biochemical and biological agents separation and concentration.

Technical Specifications of RO Water Treatment System

Adsorption - adsorption method is the use of porous solid material, adsorption of some pollution substances in the water on its surface, so as to achieve the purification of water. Adsorption can remove pollutants including: organic matter, colloid, residual chlorine, but also remove chroma and smell.

Activated carbon adsorption - activated carbon is made of bituminous coal, anthracite, fruit shell or wood chips and other raw materials by carbonization and activation of black porous particles. The physical characteristics of activated carbon mainly refers to the pore structure and distribution, the formation of various shapes and sizes of pores in the activation process, thus forming a huge specific surface area, and water contact surface is very large, so the adsorption capacity is very strong. Activated carbon can not only absorb all kinds of pollutants in water, but also can absorb pollutants such as SO2 in waste gas, so it has a wide range of uses in environmental protection, water treatment and other fields.

A positively charged reverse osmosis membrane

Now widely used low pressure, ultra-low pressure composite film material are aromatic polyamide, the membrane surface are negative charge, there are membrane manufacturers have developed a surface with positive charge low pressure composite film, this film is mainly used in the preparation of high resistivity high pure water system, in Japan, The positive charge film ES10C produced by Nitto Denko has achieved high pure water resistivity of 10 ~ 15 megohm in the three-stage reverse osmosis system in the semiconductor industry, and the final water resistivity of the three-stage reverse osmosis system produced by Hyundai Electronics in Korea is 8 ~ 9 megohm. A 170 t/h three-stage reverse osmosis system in a semiconductor factory in Shanghai also reached the above targets. In addition, the resistivity of water produced by reverse osmosis is 1 ~ 4 megohm in the two-stage reverse osmosis system of the scale of 5 ~ 20 tons/hour in some domestic pharmaceutical factories. In 2000, the domestic pharmaceutical industry will put into production 20 sets of such reverse osmosis systems.

Process flow of RO Water Treatment System

Raw water → Raw water tank → Raw water pump → Multi-media filter (quartz sand filter) → Activated carbon filter → Soft water processor → Precision filter → High pressure pump → Primary reverse osmosis (RO) device → Purified water tank → High pressure pump → Two Stage reverse osmosis → ultraviolet sterilization device → water point.

Photos of reverse osmosis water treatment system

FAQ:

1. What is the design water yield of ro membrane element? (except anti-pollution membrane and seawater desalination membrane)

Model 4040 is designed by 0.25m3/h

Model 8040 is designed by 1-1.2m3/h

2. What is the material of mechanical filter?

Carbon steel, stainless steel, fiberglass

3.What are the multi-way control valves?

Manual control valve, automatic control valve

Multi - way control valve is divided into: filter valve and softening valve

Automatic control valve is divided into: time type and flow type.

Multi-way control valve brands are: FLECK, AUTOTROL, Runxin, clean source, etc.