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Closed recirculation system, open recirculation system, DC water system comparison:
DC water system
Fouling
1.1 a surfactant, such as
control
polyphosphate
1.2. Increase in acidity
1.3. Increase in pH
1.4.Other issues to consider:
surface temperature,
temperature, cleaning system,
etc.
Corrosion
1.1.low
control
corrosion inhibitors
1.2.anti-calcium
scale coating
1.3, pH control
1.4.Suitable
materials
Mud algae
1.1, chlorinated phenol
control
1.2. Other chemicals
1.3.
Chlorine
hypochlorite or liquid chlorine
1.1.Emissions
1.2.surfactants, such as polyphosphate
1.3. Increase in acidity
1.4 pH adjustment
1.5 softening (other issues to consider:
water
surface temperature, water temperature,
cleaning system, etc.)
concentration
of
1.1.High
corrosion inhibitor
carbonate
1.2.Low
corrosion inhibitor
1.3, pH control
manufacturing
1.4. Suitable manufacturing materials
1.1, chlorinated phenol
1.2. Other chemical drugs
formed
by
1.3. Chlorine formed by hypochlorite or
liquid chlorine
Open recirculation system
concentration(200~500ppm)
concentration(20~30ppm)
32
Closed recycling system
No need to control
1.1, high concentration of
corrosion inhibitors
1.2.Suitable
manufacturing
materials
No need to control
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