Utmost for improper bacterial or microorganisms control will have to conducted slime mass biofouling which retarded heat transfer process. My experiences in power plant there are two kind of cooling system, 1. Once Through Cooling water 2. Open Recirculating Cooling Water. For once through, must be treated with intermittent dosage combine oxidizing and non oxidizing biocides in the morning and afternoon or every 12 hours, during the time 1-2 hours. Before is dose 5 ppm with bio dispersant. 2. In the open Cooling Water system, if the pH in alkaline 8,5-9,5, use Bromine base be more effective than Chlorine base. Maintained frer halogen in 0.3-0.5 ppm. And slug dose with two combines non oxidizing biocides, Isothiazoline and DGH based, its will made TPC count/ml always

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Utmost for improper bacterial or microorganisms control will have to conducted slime mass biofouling which retarded heat transfer process. My experiences in power plant there are two kind of cooling system,

1. Once Through Cooling water

2. Open Recirculating Cooling Water.

For once through, must be treated with intermittent dosage combine oxidizing and non oxidizing biocides in the morning and afternoon or every 12 hours, during the time 1-2 hours. Before is dose 5 ppm with bio dispersant.

2. In the open Cooling Water system, if the pH in alkaline 8,5-9,5, use Bromine base be more effective than Chlorine base. Maintained frer halogen in 0.3-0.5 ppm.

And slug dose with two combines non oxidizing biocides, Isothiazoline and DGH based, its will made TPC count/ml always