THE ACTIFLO(R) PROCESS - A HIGHLY COMPACT AND EFFICIENT PROCESS TO PREVENT WATER-POLLUTION BY STORMWATER FLOWS

Prevention of pollution due to stormwater flow is the new challenge in water pollution control. With a view to avoid heavy investments in buffering capacity, a new process called Actiflo(R) has been developed. This process allows an upflow velocity of 130 m/h over the lamella, which means a total area of only 0.03 m2 per m3/h of influent capacity. Under these conditions, a reduction of 80% of the TSS is achieved using about 60g/m3 of ferric chloride and 0.8 g/m3 of polyelectrolyte. High compactness and quick start up of the process allows one to set up the Actiflo(R) in any place where prevention of stormwater flow is suitable, with low operating and investment costs compared to conventional solutions.