food grade product line by Water Services Ltd

Algae require sunlight and use chlorophyll to convert carbon dioxide into biomass. While different types of algae flourish under different optimum conditions, those which are most predominant in recirculating cooling systems are found on the wet, exposed, aerated surface such as the open distribution decks of the cooling tower. Algae biomass are found attached to the tower structural members and in the plenum and drift eliminator. Algae attach themselves to structural surfaces in the area where they grow. Consequently, algae normally have little direct effect on heat exchanger surface. If dislodged, algae may interfere with proper water distribution on the tower deck and/or they may be transported to heat exchangers where they may cause plugging.

Algae biomass can provide a nutrient source for bacteria, thereby enhancing bacterial growth. If attached to, and/or deposited on metal surface, algae can contribute to localized corrosion processes, especially microbiologically induced corrosion (MIC.)