Our company designs the system based on the raw water quality and production water quality requirements provided by the companies under the Weigao Group

Our company designs the system based on the raw water quality and production water quality requirements provided by the companies under the Weigao Group. The system configuration and settings can fully meet the requirements under the water inlet conditions. It is based on the principles of automatic, energy-saving, simple operation, environmental protection and safety, and ensures that the system can operate stably for a long time. According to the raw water (inlet) water quality parameters and outlet water requirements provided by the demander, our company's design department adopted a 10T/H two-stage reverse osmosis purified water system. The following process is adopted: raw water tank → raw water pump → multi-media filter → activated carbon filter → 5μm precision filter → high-pressure pump 1 → (dosing device) reverse osmosis unit 1 (cleaning system) → high-pressure pump 2 (dosing device) → reverse osmosis unit 2 (cleaning system) → purified water storage tank → water point. The system adopts fully automatic human-machine interface control and monitoring to ensure the normal operation of the reverse osmosis system, and is also equipped with a series of online test instruments, including conductivity meter, flow meter, pressure gauge, etc. All instrument joint blind pipes in contact with product water are in compliance with 3D requirements to ensure no secondary pollution of purified water quality, thus ensuring long-term stable operation of the system. In this project system:

（1） The pretreatment system uses multi-media filters and activated carbon filters. Their operation, exit, water backwash, air scrubbing, and commissioning are all automatically controlled. Its exit operation mechanism is controlled by the set operation time. The disinfection and sterilization of the quartz sand filter and the activated carbon filter are automatically completed through the operation of the control system.

（2） The use of reverse osmosis system is due to its extremely high desalination capacity. To ensure the safety and flexibility of system operation, the reverse osmosis system is configured in a single column. Reverse osmosis system 2 includes three parts: high-pressure pump, reverse osmosis membrane group, and control instrument. It is also equipped with an online pH adjustment system, which aims to adjust the pH value of water and reduce the conductivity of product water. Due to the zero removal rate of CO2 by the reverse osmosis membrane and the presence of CO2 in the product water, the product water contains HCO3- and CO32-, resulting in a high electrical conductivity. As the reverse osmosis membrane has a high desalination rate for HCO3- and CO32-, the pH adjustment device increases the pH value of the raw water, reduces the concentration of CO2 in the water, and converts it into HCO3- and CO32-, thereby reducing the composition of CO2 in the product water and lowering the electrical conductivity of the effluent.

（3） In addition, the system is equipped with a terminal pure water tank to ensure that the purified water produced by the reverse osmosis system enters the pure water tank and is then pumped to each water consumption point through the purified water delivery pump, ensuring the stability and continuity of water supply to each water consumption point. To meet the verification requirements, an air respirator is installed in the pure water tank to prevent dust and microorganisms from entering and leaving the air due to water level fluctuations, ensuring that the purified water is not contaminated and preventing box deformation. The pure water tank is equipped with a cleaning spray head that can automatically clean the water tank. And equipped with a liquid level sensor, controlled by PLC and able to display the liquid level of the water tank on the touch screen. The liquid level of the pure water tank is interlocked with high-pressure pump 2. When the liquid level of the pure water tank exceeds the set value, high-pressure pump 2 stops operating. To achieve fully automatic control of the entire system.

Now, through the actual operation of the customer, the purpose and requirements designed by the customer at that time have been achieved.