Cleartec® BioCurlz is used as a completely submerged fixed bed in the biological stage of a wastewater Treatment Plant. The 3-dimensional lace structure provides growth surface for the active micro- organisms without flow restrictions. By using fine bubble aeration for supplying oxygen to the microorganisms a vertical flow be obtained.
The thickness of biofilm will be regulated by the velocity of the airstream by removing the old microorganism and forms a new active biofilm surfaces. The amount of active microorganisms is comparing with the 47 g suspended biomass per m BioCurlz under optimum operating conditions.
The activity of microorganisms depends on the sludge age and differs according to operating conditions of the WWTP. The basis for the installation of Cleartec® BioCurlz is the discharge of domestic water or compared to that at temperatures in the range of +5°C to +36°C (+41°F to + 97°F). The discharge of industrial waste water has been separately regulated. This also applies to other installations and fields of applications.