Power plant water treatment - New application case
Published on by Giovanni Pavanello, Director at ALVIM Biofilm Monitoring Technologies
In a heat exchanger , a major component of any power plant , a 20-micron thick bacterial layer ( biofilm ) can cause a 30% decrease in thermal efficiency : biofilm, indeed, is up to 4 times more insulating than calcium carbonate scale. Moreover, biofilm can increase inorganic fouling, producing sticky substances that increase particles adhesion. For these reasons, large amounts of chemical substances ( biocides ) are used to limit microbiological growth in such systems.
Read more: http://www.alvimcleantech.com/cms/en/news/74-2018-04-24-new-application-case-for-power-plants
Taxonomy
- Bacteria Control
- Biofilm Sensors
1 Comment
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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