A biofilm is the slime layer that develops on wet surfaces as result of significant microbial growth. Biofilm formation takes place when microorganisms rapidly multiply on a surface due to a number of favorable conditions (e.g. nutrients, pH, temperature, and oxygen), and start excreting extracellular polymeric substances.
With regards to water treatment, biofilm formation is a common problem of heat exchangers (e.g. cooling towers) and water distribution networks. As a consequence of biofilm formation, rapid bio-corrosion takes place on surfaces that are in contact with water. Specifically in cooling towers, biofilms form an insulation layer, leading to poor heat transfer. Last but not least, biofilms also form a safe haven for pathogens such as legionella, raising severe health risks.
Once established, the slimy matrix provided by the biofilm offers an ideal protection to microorganisms against most disinfectants. This is why water disinfection is significantly less effective in the presence of biofilms. The same holds true for anticorrosion products, which are mostly ineffective once biofilms are involved. One common solution for biofilm removal is chlorine dioxide. However, chlorine dioxide has significant drawbacks as it has to be manufactured at the point of use and leaves an unpleasant odor, causing discomfort to people in the direct environment.
BiAqua has developed a game changing technology that approaches biofilm in the most effective way. That is, preventing biofilm formation rather than focusing on biofilm removal. BiAqua Phosphate Removal Technology (PRT™) is able to reduce phosphate in water to levels below 1 ppb. As phosphate is a key nutrient for bacteria, BiAqua PRT™ successfully inhibits bacterial growth and therefore prevents the attachment of bacteria to wet surfaces (preventing biofilm formation).
Our cost-effective BiAqua PRT™ solution is bio-based and is successful in protecting heat exchange systems and water distribution networks against performance loss and bio-corrosion. Furthermore, BiAqua PRT™ technology prevents outbreaks of waterborne diseases such as legionella and other infections that predominantly are transmitted through contact with or consumption of infected water. Contact us today and discover how BiAqua PRT™ can be suited to your specific needs.
28-05-2015 Vacancy: Process Field Engineer
14-10-2013 BiAqua will be present at Aquatech 2013
6-9-2013 BiAqua and WLN form partnership to develop PRT technology
13-9-2012 BiAqua in Artemis top 50!
1-7-2012 Visit BiAqua at the SIWW'2012
7-05-12 BiAqua presents at DSM Webinar on outsourcing development for industry ingredients
29-03-12 BiAqua founding father wins Lee Kuan Yew Water prize
15-03-11 Biaqua Ferritin validated for its adsorption capacity to remove > 99.95% of 32P (i.e. < 1 ppb)
31-08-09 Icos Capital invests in TU Delft water spin-off
31-08-09 Icos Capital investeert in watervinding TU Delft