The dual stage reverse osmosis water treatment system, as the secondary desalination equipment after the reverse osmosis equipment, consists of a pre-treatment system, a first stage reverse osmosis system, and a second stage reverse osmosis system. Generally, the effluent conductivity is between 1us/cm-5us/cm (the inlet conductivity should be less than or equal to 300us/cm).

Characteristics of dual stage reverse osmosis water treatment system:

1: Under the condition of no phase change at room temperature, solutes and water can be separated, which is suitable for the separation and concentration of thermosensitive substances. Compared with separation methods with phase changes, it has lower energy consumption.

2: The reverse osmosis membrane separation technology has a wide range of impurity removal.

3: High desalination rate and water reuse rate can intercept solutes with particle sizes of several nanometers or more.

4: By using low pressure as the membrane separation power, the separation device is simple, easy to operate, maintain, and self control, and the site is safe and hygienic.

Application fields of dual stage reverse osmosis water treatment system:

1: Electric power industry: boiler feed water, cooling water;

2: Electronic industry: semiconductor industry ultra pure water pre-treatment, integrated circuit cleaning water, formula water;

3: Food industry: formula water, production water;

4: Pharmaceutical industry: process water, formulation water, washing water, injection water, sterile water preparation;

5: Beverage industry: formula water, production water, washing water;

6: Chemical industry: production water and wastewater treatment;

7: Drinking water engineering: preparation of ultrapure water and purification of drinking water;

8: Petrochemical industry: deep treatment of oilfield injection water and petrochemical wastewater;

9: Desalination of seawater: production and domestic water use in island areas, coastal water scarce areas, ships, seawater oil fields, etc;

10: Environmental protection field: recovery of precious metals and water from electroplating and rinsing water, achieving zero or micro emissions

The dual stage reverse osmosis water treatment system adopts a multimedia filter, an activated carbon filter, and a security filter as the pre treatment, effectively removing suspended solids, mud and sand, particles, organic silicon colloids, organic matter, odors, residual chlorine and other impurities in the raw water, so that the water quality after ion exchange treatment meets industrial production requirements. After going through the backend for precision treatment system (mixed bed system), ensure that the produced water quality meets the requirements for production water.

The pre-treatment system usually includes quartz sand filters, activated carbon filters, and softener filtration systems. The main function of pre-treatment is to remove organic matter, suspended solids, colloids, residual chlorine, and calcium and magnesium ions from water, to ensure the inflow requirements, reduce the generation of scale and algae growth, microbial pollution, and oxidants during operation.

Characteristics of dual stage reverse osmosis water treatment system:

1: Efficient and energy-saving, due to the combination of reverse osmosis technology and efficient ozone disinfection method, the entire system operates at room temperature and low pressure, with low equipment investment, low operation and maintenance costs, and reliable and energy-saving. The operating cost of membrane treatment method is only 12-15% of that of distillation method, which is very economical and highly competitive.

2: Stable and reliable. Adopting membrane process and multi-media filter for pretreatment; The principle of microporous permeation in reverse osmosis membranes ensures the removal of all larger ions and molecules in water, making it easy to remove volatile organic pollutants with larger molecular diameters.

Double stage reverse osmosis water treatment system water production process:

Raw water pump, quartz sand filter, activated carbon filter, precision filter, primary reverse osmosis equipment, secondary reverse osmosis equipment, ultra pure water tank water point.

The functions of the main components of the dual stage reverse osmosis water treatment system

Raw water pump:

Solve the instability of raw water pressure, ensure constant inlet water pressure and sufficient flow rate for pre-treatment, and ensure the normal operation of the RO system.

Quartz sand filter:

Quartz sand filter is a pressure filtration container made of fiberglass material, with a pressure resistance of 6kg/cm2. It is an advanced micro flocculation filtration method. The tank is filled with high wear-resistant and refined quartz sand, which can intercept small amounts of small sediment, impurities, colloidal objects, suspended solids and other visible algae in the raw water. It plays a role in reducing the turbidity and chromaticity of the raw water, filtering out insoluble impurities (such as oxides, turbidity, particles, etc.), especially in reducing the turbidity and pollution index of the raw water. It has a good effect.

Activated carbon filter:

Activated carbon filter is a pressure filtration container made of fiberglass material, with a pressure resistance of 6kg/cm2. It is filled with special particle carbon for water purification, used to adsorb pigments, organic matter, residual chlorine, odors, and heavy metal ions deposited in water, remove iron, dechlorine, and increase the residual chlorine content to 1PPM. It is an indispensable material in deep water treatment.

Color removal: It can remove the chromaticity formed by organic pollutants such as iron, manganese, and plant decomposition in the raw water.

Removing organic matter: can remove trace pollutants in raw water, such as pesticides, insecticides, chlorinated hydrocarbons, aromatic compounds, as well as BOD and COD.

Removal of organic chlorine: It can remove the odor caused by THMS and other "three pathogenic" substances and residual chlorine produced by pre oxidants and disinfectants (such as chlorine gas) added to tap water before leaving the factory.

Removing ammonia nitrogen and nitrite: Activated carbon can effectively remove ammonia nitrogen, nitrite, residual chlorine or oxidants: protecting the reverse osmosis membrane.

Deodorization: removing trace heavy metal ions (such as mercury and chromium ions) from water, synthesizing detergents and radioactive substances, etc.

Precision filter:

The shell of the precision filter is made of stainless steel material, equipped with a solution sprayed PP cotton with a filtration accuracy of 5us, which can intercept impurities entering the pre-treatment process, prevent particles in the raw water from puncturing or scratching the desalination layer on the surface of the RO reverse osmosis membrane at high flow rates, and prevent premature blockage, ensuring that the water entering the RO membrane is dry and clear, and extending the service life of the RO membrane.

The function of high-pressure pump:

The high-pressure pump adopts a vertical multi-stage special centrifugal pump to provide constant power for the reverse osmosis system, ensuring stable pressure and sufficient flow, and ensuring the normal operation of the reverse osmosis system. A water level and pressure protection device is installed in front of the inlet of the high-pressure pump. When the inlet pressure is abnormal, the high-pressure pump stops running to avoid dry running and burning the high-pressure pump.

RO reverse osmosis system

By applying a pressure greater than osmotic pressure to the raw water through a high-pressure pump and utilizing the separation technology of RO membrane, almost all harmful substances including particles, colloids, organic impurities, microorganisms, and 99% dissolved salts exceeding 200 in the raw water are effectively separated, achieving the purpose of desalination and purification, and increasing the conductivity of pure water to 10us (original water quality to 300us).

Compared with traditional ion exchange and distillation technologies, reverse osmosis technology has the advantages of small equipment volume, low energy consumption, strong adaptability, no need for acid and alkali regenerators, simple process, easy automation, excellent water quality, stable water quality, no microorganisms, no heavy metal ions, and no organic compounds. The discharged concentrated water is harmless to the environment and is a separation technology that meets environmental requirements.

It has been widely used in electronics, power, electroplating, lighting appliances, laboratories, food, papermaking, daily chemicals, building materials, paint making, batteries, laboratory testing, biology, pharmaceuticals, petroleum, steel, glass cleaning water, semiconductor industry, fine chemicals, optics, pharmaceutical water, dialysis medical water. In other fields.

If you need to learn more about the configuration of pure water machine equipment and other water treatment equipment, please call Jiajie Pure Water Equipment Miss He 18902645258 (same WeChat account). We will design a water treatment equipment configuration plan that meets your actual water use based on your raw water quality. We cannot say that we are the best, but at the very least, we can provide you with a practical design plan. The designed plan can solve your real water use needs, which is the most crucial.

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