Spidflow
The flotation is made possible with a white water production (air and water mix under 5-6 bars) capable to generate fine air bubbles which are released in the system to occur the low density particules flotation. The Spidflow® hydraulic design has been particularly optimized with the help of CFD (Computerized Fluids Dynamics) calculation simulations. Some hydraulic management devices, associated downstream to a coagulation/flocculation stage, allow Spidflow™ to reach high clarification rates in the range of 30 to 50 m/h.
Spidflow® is applied for :
- drinking water treatment,
- sea water treatment (upstream to RO treatment systems), really efficient in case of red tides events
- process water production (power plants...)ase of surface water containing low density particules, algae, floating matters (greases, oils...).
- Cagnes-sur-mer WWTP, France, 2019, primary wastewater, 2,100 m3/h
- Cenal Energy Power Plant, Turkey, 2016, sea water, 120 m3/h
- Trégat DWTP, Brittany, France, 2016, dam water, 420 m3/h
- Oman Sur expansion, Sultanate of Oman, 2016, sea water, 5,417 m3/h
- Port Albert BWRO plant, Eastern Cape, Republic of South Africa, 2016, delta brackish water, 475 m3/h
- Sadara Chemical Complex, Kingdom of Saudi Arabia, 2016, sea water, 20,304 m3/h
- Narva DWTP, Estonia, 2015, surface water, 833 m3/h
- Al Zawrah 2, Ajman site, UAE, 2013, sea water, 4,974 m3/h
- Al Zawrah 1, Ajman site, UAE, 2013, sea water 2,984 m3/h
- Kermorvan DWTP, Brittany, France, 2013, surface water, 300 m3/h
- RWE Power plant, Netherlands, 2013, delta brackish water, 1,800 m3/h
- Fujairah 2, UAE, 2010, sea water, 15,375 m3/h
- Toulon La Valette DWTP, PACA, France, 2009, surface water, 2,823 m3/h
- Annet sur Marne, Ile de France, France, 2009, surface water, 103 m3/h
- Oman Sur, Sultanate of Oman, 2009, sea water, 2,224 m3/h
CHEMICALS
Usually, Spidflow® doesn`t need polymer for the flocculation step, only in case of cold water; which is an advantage to produce very nice SDI (Silt Density Index) water quality in case of membranes uses downstream.
It`s also possible to use PAC (Powdered Activated Carbon) continuously or during shorts events, in the Spidflow®. This is helpful in case of algal toxins release in the water by blue algae type (Cyanobacteria). The PAC is then a security step, capable of removing by adsorption the released toxins.