Principle of reverse osmosis desalination technology:

    The water in nature contains many soluble impurities, which cannot be removed by methods such as filtration. The reverse osmosis desalination technology is to use the reverse osmosis membrane with selective permeability, apply a pressure higher than the solution Osmotic pressure on the raw water side of the membrane, so that when the raw water passes through the reverse osmosis membrane, only water is allowed to penetrate, and other substances cannot penetrate and are intercepted and separated.

Advantages:

    Our company has selected world-renowned brands such as DOW and GE for the key reverse osmosis membrane components on the reverse osmosis pure water treatment equipment. The device has the following advantages:

1. The equipment can operate continuously for a long time, with high and stable desalination rate of water quality, and no periodic regeneration problem.

2. The entire treatment process only consumes the power of the high-pressure pump and does not consume chemical materials such as acids and alkalis. It has low operating costs and no discharge of chemical pollutants.

3. The equipment is easy to operate and can be started and stopped at any time, making it easy to achieve automatic control together with pure water tanks and other equipment.

4. The equipment is compact in size and low in height, suitable for installation in factories of general height.

Raw water requirements:

    Water quality: Generally applicable to municipal water supply that meets the GB5749 standard, with main indicators including turbidity ≤ 1NTU, iron ≤ 0.3mg/L, and residual chlorine ≤ 0.3mg/L. For areas with unstable water supply quality and non municipal water supply

Corresponding strengthening pre-treatment measures need to be taken according to the situation for the water source.

Temperature: 10~45 ℃.

Pressure: When the equipment is operating at full load, the stable inlet pressure is 0.2~0.3MPa.

Function of pre-treatment equipment:

The raw water needs to undergo pre-treatment before entering the reverse osmosis treatment equipment. The pre-treatment process and requirements are related to factors such as the type of raw water and local environmental conditions. Typically, pre-treatment equipment and its functions are configured on pure water equipment as follows:

Sand filtration removes impurities such as suspended solids and particles from water. If necessary, it is necessary to cooperate with the addition of coagulants.

Activated carbon adsorption removes colloids and residual chlorine from water.

Precision filtration depth removes suspended solids from water.

Remove iron to prevent iron deposition on the membrane surface and form irreversible fouling.

Soften or add scale inhibitors to prevent the deposition of insoluble salts such as calcium and magnesium.

Ultrafiltration removes impurities such as suspended solids and colloids from water, and can even remove some microorganisms and pyrogens from the water.