About Pure water treatment system

As reverse osmosis and EDI technologies become more and more mature, the production speed and efficiency of pure water treatment systems have gradually increased. They are often used for laboratory and medical industry, but pure water has certain requirements for storage conditions and time; like pure water of 18.2 MΩ.cm, the longer it is left, the more serious the water quality decline will be. At the same time, the rapid growth of microorganisms will be shown due to environmental influences.

In order to ensure the water quality, below issues should be noted regard to pure water treatment system:

1. It shall be automatically flushed every time when start, to prevent the growth of bacteria

2. When the system be shut down for a long time, drain the water in the system and the water tank, to prevent the growth of bacteria

3. Prevent water leakage, which will eventually lead to the growth of bacteria

4. Regularly replace the consumables, to prevent the bacteria from growing on the reverse osmosis membrane because the filter element has not been replaced for a long time

5. Check the pure water quality regularly, and deal with it in time when it is found that the water quality declined

In addition to pure water treatment system, the storage tank should also be noted for below issues:

1. The storage tank should be equipped with an air filter to prevent air from penetrating through the water intake and causing water pollution

2. The storage tank should try to avoid the direct sunlight when be placed

3. If the pure water be stored in the tank for a long time, then should not use it any more

What is the resistivity and the conductivity of water:

The higher the purity of the water, the lower the salt content, and the greater the resistivity of the water (the smaller the conductivity); the unit of resistivity is Ω.cm or MΩ.cm; the conductivity is the reciprocal of the resistivity, the unit is S/cm (Or μs/cm); such as conductivity=0.1us/cm, resistivity=1/0.1=10Ω.cm

When measuring resistivity or conductivity, connect the conductivity electrode or measuring device to the water system, and pass water to drive out the bubbles in the pipeline measuring device and the conductivity cell, and adjust the water flow rate (generally not less than 0.3m/s), Operate the conductivity meter (preheat, zero, calibrate and measure) according to the instrument manual, and record the value after the instrument reading is stable

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