Extended Aeration Process
is a type of activated sludge process with no primary settling and very long aerobic detention time to generate less excess sludge overall. It is ideal for smaller flow, modular applications that require low maintenance such as residential subdivisions. But the long HRT of Extended Aeration means larger basins, and when capacity growth outpaces available space, B K chemicals can be a good solution.Adding floating media to an Extended Aeration system will increase biomass and expand capacity, while still maintaining low sludge production and high resistance to shock loads and diurnal variability.Additionally, if stricter regulations require nutrient removal, B K Chemicals can help convert an Extended Aeration process into a staged Biological Nutrient Removal system.
Advantages and key features
- Simple, low-cost design
- Minimal sludge production, due to extended aeration times
- Constructed in either marine grade aluminum or epoxy-coated steel for long corrosion-free service
- Air operated pumps mean fewer electrical components
- Flexible process that can treat a wide range of wastewaters Photo-