Abstract
The article summarizes the results of the second phase of a comprehensive study of energy efficient wastewater treatment processes in oxidation ditches. Dependence of the efficiency of simultaneous nitrification and denitrification at the change of oxygen regime have been determined at the second phase of the study. Results of the phase confirm the fundamental possibility of the withdrawal of biomass in energy-efficient mode with high quality of wastewater treatment.
Highlights
Biochemical and physical modelling of wastewater treatment is an important practice for the design and operation of wastewater treatment plants
Activated sludge for inoculation was delivered from the existing wastewater treatment plant
An experimental system has been launched on well-aerated nitrifying activated sludge, before does not need to adapt to low-DO operating conditions
Summary
Biochemical and physical modelling of wastewater treatment is an important practice for the design and operation of wastewater treatment plants. The base process in these studies is Simultaneous Nitrification and Denitrification (SND) and the key experimental construction is oxidation ditch. Simultaneous nitrification and denitrification – is one of the most economical methods for nitrogen removal. Both biochemical reactions (nitrification and denitrification) occur concurrently under identical operating conditions in the same reactor without separation into aerobic and anoxic macrozones in this process.
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