A new type of bioreactor
Biower’s innovative wastewater treatment technology is based on a Clewer Rotating Bed (RB) bioreactor, fitted with carrier elements for the specialised bacteria used to decompose chemicals and other impurities. The carrier elements are rotated continuously to maintain a steady oxygen supply and keep them clean at all times. After passing through a sedimentation tank to remove phosphorus, effluent enters an initial bioreactor, which uses oxygen-free denitrification to release chemically bound nitrogen. A second bioreactor removes carbon compounds and converts them into water and CO2 and initiates the oxygenation of nitrogen compounds, which continues in a third bioreactor. A mechanical clarifier concludes the process.
Compared to moving beds, RB bioreactors offer unbeatable efficiency and use as little as 10% of the energy conventional technology needs. Space use is also very efficient, as RB reactors take up a fraction of the space required by activated sludge and carrierbased processes.