Eliminate the biofilm threat and ensure the safety of your staff and visitors.
The hidden dangers of biofilms
Did you know that large cooling towers can accumulate over 275kg of suspended matter in a year? Cooling towers are essentially air scrubbers: large amounts of air are drawn in to facilitate the cooling of system water circulating through. During this process, dust, leaves, pollen, insects, etc. sucked into the tower settle in low flow areas to become both nutrient and habitat for microbiological growth.
During summer months, when cooling systems are operating at maximum capacity, the amount of accumulated debris and bacteria can be particularly significant. Some bacteria attach to surfaces and secrete a sticky slime to form a “biofilm”. Transparent and jelly like; biofilms can be less than the thickness of a human hair and tend to form in hard to reach areas. They are extremely resilient due to their complex structure and commonly used biocides only penetrate a few microns within the biofilm. This makes biocides ineffective and leaves most of the biofilm intact and the micro-organisms within, largely unharmed. Should this be a concern? Yes!
Are you sure you’re in control of your cooling system?
Biofilms are extremely insulating (at least 4 times more than scale), affecting heat transfer, which significantly increases operational and production costs.
Bacteria that produce acid as a metabolic by-product will cause Microbiological Influenced Corrosion (MIC) underneath deposits and biofilm. This can be up to 1000 times faster than conventional corrosion, severely reducing equipment life.
Some microorganisms within biofilm can be serious pathogens (the most notorious examples being Legionella or Pseudomonas), putting at risk the health and safety of people in proximity with the system.
Make sure you stay in control of your cooling system with the right water treatment programme for your facility from Chem-Aqua.
Ground breaking technology in the fight against biofilm
Using Chem-Aqua’s unique patented bioeXile, in combination with traditional cleaning and disinfection procedures, we can tackle the problem of biofilm. At a customer site that showed no sign of microbiological problems, a bioeXile application prior to the system cleaning and chlorination revealed the presence of two types of bacteria commonly associated with problems caused by biofilm: Pseudomonas and Sulfate Reducing Bacteria (SRBs).
SRBs live in the oxygen deficient, anaerobic conditions (found under biofilms) and are responsible for MIC. An SRB test run at the end of the bioclean with bioeXile was negative, showing that they had been eliminated. Hidden pathogens are released by bioeXile and subsequently killed by biocide.
During the cold season there is less strain on your cooling system as parts of it become out of use. This does however put your system at risk of water stagnation, sludge build up and increases the risk of biofilm formation, particularly in areas such as water basins, tower equalisation lines and dead legs.
These are just some of the results our customers are experiencing - You could too!
- In the case of stubborn Legionella positives, bioeXile allowed our customer to regain control
- Up to 60% reduction of dissolved iron observed after bioeXile clean
- 2°C improvement on ΔT across the cooling tower after bioeXile clean
- Heat transfer / condenser approach temperature restored back to design specification
Join the hundreds of successful applications across Europe, click here to find out how bioeXile can solve your biofilm problems
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Chem-Aqua has the Solution
To help protect your facility and the health of the people in your workplace, you may want to consider conducting a thorough cleaning and disinfection of your system whilst use is at a minimum. Use bioeXile to get your cooling system clean and keep it clean.