The critical element
The Algae bio-film becomes saturated with oxygen during photosynthesis (the biological aeration process)
How the Process Works
Algae grow on rotating wheels, using light, CO2 and nutrients. Through co-evolution, algae and bacteria have developed an intricate relationship where the by-products of one group are the inputs for the other. Algae produce oxygen, consume carbon-dioxide, generate sugars, and nutrients. Bacteria consume the oxygen and sugars and produce carbon-dioxide, which is then used by the algae — completing the cycle.
When subjected to light, the algal biofilms become saturated with oxygen, enhancing BOD reduction and nitrification of ammonia.
Activated sludge systems depend on skilled control of the mixed liquor and aeration to maintain the treatment biology. By contrast, Algaewheel® requires no operational management, as nature’s balance of its diverse ecology and chemistry has been ‘expertly engineered’ over billions of years. Nature-based systems (especially fixed film) sustain their biology in periods of low flow and mitigate the effects of shock loadings.
This revolutionary system sustainably delivers the needs of the small-scale market by providing a stable and effective treatment which radically reduces energy and operator requirements.