1000LPH Industrial RO Plant Reverse Osmosis System Water Treatment Equipment

Large Scale RO Water Treatment System Water Filtration Purifying Machine

Definition of RO Water Treatment System

Ro water treatment system usually uses asymmetric and composite membranes. The equipment used for reverse osmosis is mainly hollow fiber type or coil type membrane separation equipment.

Ro water treatment system membrane can intercept all kinds of inorganic ions, colloid substances and macromolecular solutes in water, so as to obtain clean water. It can also be used for pre-concentration of large molecular organic matter solution. Reverse osmosis process is simple, low energy consumption, has been developed rapidly in recent 20 years. It has been widely used in desalination of seawater and brackish water, softening of boiler water and wastewater treatment, and producing high-purity water combined with ion exchange. Its application scope is expanding, and it has begun to be used in the concentration of dairy products, fruit juice and separation and concentration of biochemical and biological agents.

Application of RO Water Treatment System

Reverse osmosis technology is usually used in seawater, brackish water fresh water; Water softening treatment; Waste water treatment and food, pharmaceutical industry, chemical industry purification, concentration, separation and other aspects. In addition, the application of reverse osmosis technology in pre-desalting treatment also achieved good results, can make the ion exchange resin load reduction more than 90%, resin regenerating agent dosage can also be reduced by 90%. Therefore, it is not only cost saving, but also beneficial to environmental protection. Reverse osmosis technology can also be used to remove particles, organic substances, colloids in water, to reduce the pollution of ion exchange resin, prolong the service life has a good role.

Technical details of RO Water Treatment System

What is the basic principle of RO Water Treatment System?

The same volume of dilute solution (e.g., water) and thick liquid (such as sea water or salt water), respectively, on both sides of the container, separated by a semipermeable membrane, dilute solution of the solvent nature through a semipermeable membrane, flowing the concentrated solution side, the side of the strong solution liquid level than the dilute solution of liquid level above a certain height, and form a pressure difference, achieve osmotic balance state, this pressure difference is the osmotic pressure, The osmotic pressure depends on the type, concentration and temperature of the concentrated solution, and is independent of the properties of the semi-permeable membrane. If a pressure greater than osmotic pressure is applied on the side of the concentrated solution, the solvent in the concentrated solution will flow to the dilute solution, and the flow direction of the solvent is opposite to the direction of the original infiltration. This process is called reverse osmosis.

Unique advantages of RO Water Treatment System

(1) Pressure is the main driving force of the reverse osmosis separation process. It does not go through the phase change of energy-intensive exchange and has low energy consumption;

(2) Reverse osmosis does not need a lot of precipitant and adsorbent, low operating cost;

(3) The reverse osmosis separation engineering is simple in design and operation and short in construction period;

(4) Reverse osmosis purification efficiency is high, environmental friendly.

Therefore, reverse osmosis technology has been widely used in domestic and industrial water treatment, such as seawater and brackish water desalination, medical and industrial water production, pure water and ultrapure water preparation, industrial wastewater treatment, food processing concentration, gas separation, etc..

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Process flow of RO Water Treatment System

Conventional reverse osmosis water treatment system process is: raw water → pretreatment system → high-pressure pump → reverse osmosis membrane assembly → purified water.

The pretreatment system according to the condition of raw water quality and water requirements Can take the coarse filter, activated carbon adsorption, fine filtration, precision filtration is necessary, in order to protect the reverse osmosis membrane, prolong the service life of, in addition, the composite film is sensitive to the free chlorine in the water, and thus are usually equipped with activated carbon adsorption pretreatment system.

Characteristics of RO Water Treatment System

Reverse osmosis water treatment system can remove more than 90 % of soluble salts and 99 % of colloidal microorganisms and organic matter from water. Reverse osmosis water treatment system is suitable not only for seawater desalination, but also for brackish water desalination. Of the existing desalination methods, reverse osmosis desalination is the most economical, it has even exceeded the electrodialysis desalination. As the driving force of reverse osmosis process is pressure, there is no phase change in the process, and the membrane only plays the role of "screening", so the energy consumption of reverse osmosis separation process is low. In existing seawater and brackish water desalination, reverse osmosis is the most energy saving. Reverse osmosis membrane separation is characterized by its "broad spectrum" separation, that is, it can not only remove all kinds of ions in the water, but also can remove particles larger than the ions, such as most of the organic matter, colloid, virus, bacteria, suspended matter, so reverse osmosis separation method is also known as broad spectrum separation.

RO Water Treatment System consumables:

1. Original water pump: to provide pressure to quartz sand filter/activated carbon filter/water softener;

2. Quartz sand filter: glass fiber as the shell, filled with quartz sand, can filter large particle impurities, suspended matter, colloid, etc.. It is important to remove sediment; (Optional shell and stainless steel, carbon steel)

Activated carbon filter: glass fiber as shell, filled with activated carbon, remove color, odor, residual chlorine and organic matter; (Optional shell and stainless steel, carbon steel)

4. Safety filter: prevent large particles, bacteria and viruses from entering RO film, accuracy is 5μm;

5. Reverse osmosis system: can remove particles, colloid, organic impurities, heavy metal ions, bacteria, virus, heat source, etc. Hazardous substances and 99% dissolved salt;

6. High pressure pump: provide high pressure to reverse osmosis membrane;

7. Polypropylene filter cartridge: interception of large particles, bacteria and viruses with accuracy greater than 5μm. (Optional);

8. Folding filter cartridge: intercept large particles, bacteria and viruses with accuracy > 0.22μm. (optional).

There are several consumables that you need to replace regularly.

A. Quartz sand: replaced approximately every 36 months. 50kg/bag

B. Activated carbon: Replace it approximately every 15 months. 25kg/bag

C. Resin: Replaced approximately every 15 months. 25 l/bag

D. Polypropylene cartridge: approximately every 3-6 months to replace

FAQ:

1. What is the material of ro water treatment system membrane?

Acetate membrane (CA) : mainly because of its resistance to chlorine, so it is still durable. But its suitable pH range is small, easy hydrolysis

Aromatic polyamide membrane (PA) : water almost can not have chlorine, only through a variety of pretreatment chlorine.

2. RO water treatment system configuration:

First-stage multi-stage process: if the recovery rate is not achieved in the first stage (50-65% in the first stage and 65-75% in the second stage), the multi-stage tandem filtration can be used. The effective cross-sectional area of each segment decreases. 2:2 and 2:3 and 4:2:1

Multi-stage process: when the first stage process cannot meet the effluent quality requirements (the first stage is generally ≤20μs/cm), the product water of the first stage process is sent to another reverse osmosis unit.

The arrangement of membrane components can be divided into series and parallel.

3. What is the shell film material and specification of ro water treatment system?

Material of membrane case: stainless steel and fiberglass (FRP)

Specification of membrane shell: four inch membrane shell 4040 (one core to four core)

8 inch membrane case 8040 (one to seven cores)

Water inlet: end water inlet, side water inlet

4. 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

5. What is the material of mechanical filter?

Carbon steel, stainless steel, fiberglass

6. 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.