Microbiological Control

Microbiological fouling in cooling systems is the result of abundant growth of algae, fungi, and bacteria on surfaces. Once-through and open or closed recirculating water systems may support microbial growth, but fouling problems usually develop more quickly and are more extensive in open recirculating systems.

Open recirculating systems scrub microbes from the air and, through evaporation, concentrate nutrients present in makeup water. As a result, microbe growth is more rapid. Process leaks may contribute further to the nutrient load of the cooling water.

The uncontrolled growth of microorganisms can lead to deposit formation i.e. microbial slimes. These are masses of microscopic organisms and their waste products. These slime layers are usually sticky and effective in trapping foulants present in the bulk water, also they can promote scale growth. Some bacteria can indirectly increase corrosion risk by metabolizing sulfate to produce H2S which in turn increases the acidity of the system.

AquaNile Chemical Industries available treatment programs (MBtrol XXXX Series)

  • Oxidizing Biocides: Stabilized Hypochlorite or Bromine precursors
  • Non-Oxidizing Biocides: QUAT, Isothiazoline, Glutraldehyde, etc...
  • Biodispersants and Biopenetrants

Custom designed programs are available upon customer request, after completing a site survey by one of our field experts. For more information, contact ANCI sales team.