Together with carbon and nitrogen, phosphate is a key nutrient for living organisms. Indeed, phosphate groups are part of the backbone of nucleic acids. Besides, phosphorous is an essential element in the formation of phospholipids, a major component of all cell membranes. Even in low concentrations, the presence of phosphate in feedwater is sufficient to trigger bacterial growth and biofilm formation (biofouling) in water treatment systems. Therefore, the presence of phosphate in feedwater, through biofouling, leads to a number of well-known operational issues during the process of water treatment.
Known negative effects of biofouling in water treatment systems are:
Another negative effect of phosphate in water is eutrophication of surface water. This problem is caused by the discharge of phosphate-rich water from Wastewater Treatment Plants (WWTP’s). Eutrophication can cause the excessive growth of algae and can deprive surface waters from oxygen, causing the death of water fauna and flora. To prevent eutrophication, WWTP’s must meet stringent phosphate discharge limits.
To prevent bacterial growth and biofilm formation during water treatment, it is important to deprive bacteria from possible nutrients. By reducing phosphate levels to below 1-2 ppb, bacterial growth is inhibited. However, state-of-the-art technologies (e.g. chemical precipitation, and adsorption) are not able to reach these sufficiently low levels of phosphate.
BiAqua Phosphate Removal Technology (PRT™) is the first solution that consistently achieves concentrations of phosphate in water below 1 ppb. Both laboratory tests and pilot tests have demonstrated that at such low levels, bacterial growth is almost completely halted. Therefore, BiAqua PRT™ is the ideal solution to prevent both eutrophication and the negative effects from biofouling.
Inspired by nature, BiAqua developed BiAqua PRT™, a range of bio-based, environmentally friendly materials that capture phosphate in water and allow its release in a controlled way. All our adsorbent materials are regenerable and can be retrofit in standard filtration units before membrane elements or as stand-alone solution in large water treatment plants.
Contact us for information about how BiAqua PRT™ can be applied to your specific needs and for an indication of the reduction in operational costs when you start using BiAqua PRT™.
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