Which (water quality) parameters need to be monitored for circulating cooling water?
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Which water quality parameters need to be monitored for circulating cooling water?； For example: what are the appropriate values for indicators such as pH or hardness? What additives are needed, etc ；
The testing parameters generally include the following: 1. pH value, with a range of 7.8 to 8.3. 2. Conductivity (Cond.), with a range of 3000 to 4500 – this depends mainly on the concentration factor used. 3. Redox potential (ORP), with a range of 400 to 550; this is related to the amount of bleach added. 4. Residual chlorine, with a range of 0.5 to 1 ppm. 5. Bacterial count (BAC.), with a range of
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pH, Turbidity, mg/L; Oil, mg/L; COD Mn, mg/L; Total Phosphorus, mg/L; Fem, mg/L; Silt, mL/m3. Parameters: 8.0~9.0, ≤20, ≤10, ≤10, ≤1.0, ≤5.0. Requirements for the formula: Number of heterotrophic bacteria, per mL; Calcium hardness + Alkalinity, mg/L; Cl- + SO42-, mg/L; Residual chlorine, mg/L; Adhesion rate, mcm; Corrosion rate, mm/a. Parameters: ≤1.0*105. Requirements for the formula: 0.5~1.0, ≤20, ≤0.1
You can find manufacturers specialized in circulating water treatment; they will be able to do a better job for you. We used the ones from Changzhou Seagull, and the results are pretty good