Seek guidance on circulating water quality
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Total alkalinity: 453 mg/L, Hardness: 500, Chlorides: 59, Total phosphorus: 0.74
The total alkalinity is still on the high side； If the total phosphorus level is low, does that mean more scale inhibitor is needed?
What type of scale inhibitor is it? If it’s not a phosphonate-based one, then it shouldn’t be used
The water quality is quite good, especially regarding chlorides; the concentration of circulating water is less than 100 ppm. Additionally, it would be best for the poster to provide the water quality report for the water used for replenishment, so as to gain a better understanding of the system’s operation. Do you have any control standards for total phosphorus in your daily operations? Since the chemical is a phosphonate-based formula, if it isn’t a low-phosphorus formula, then the total phosphorus content is indeed low; therefore, the amount of chemical added is likely insufficient.
The water used for rehydration is tap water with a total alkalinity of 224, hardness of 210, chloride content of 26, and a pH level of 5
What kind of water is used for rehydration? Is the PH that low? Logically, this water should have a slight negative hardness, and with a total alkalinity as high as 224 ppm, the pH shouldn’t be so low. For such water, it is recommended to further reduce the discharge volume and increase the concentration factor. The current concentration ratio is around 2.3, and I think it can be increased to around 4 times. This can reduce it by over 50%.
In chemical plants, a high concentration ratio can cause clogging of the condenser；
The concentration ratio provided by the manufacturer is 2.3