Name

Unlocking capacity in wastewater treatment: activated sludge dynamic filter - groundbreaking technology to enhance effluent quality and expand capacity in overloaded plants

Speakers

Jonny Newman, Mr Duncan Wildgoose

Authors

Duncan Wildgoose and Jonny Newman, Xylem, UK

Description

An activated sludge dynamic filter can be operated in parallel with or as a replacement for secondary clarifiers to produce high quality effluent and increase treatment capacity in a small footprint. At municipal wastewater treatment plants (WWTPs) in Germany, Sweden and the US, temporary rental activated sludge dynamic filters were operated in parallel with the existing secondary clarifiers. The rental systems demonstrated consistent effluent total suspended solids (TSS) concentrations over a wide range of flows, loads, and temperatures between 5 – 10 mg/l, important for achieving low TN and TP effluent standards. Furthermore, the higher effluent quality achieved with the activated sludge dynamic filter technology enabled reduced hydraulic load to be treated by the clarifiers improving the effluent quality from the clarifiers. Increasing the hydraulic and solids loading capacity of the clarifier system also allows the biological treatment to be uprated by running at higher MLSS to achieve improved nutrient removal effluent quality. Therefore, the low footprint activated sludge dynamic filters can be easily used to permanently upgrade existing plants without significant civil construction or as a temporary solution to reduce load to struggling clarifiers or systems requiring maintenance.

Time

2:43 PM - 2:55 PM

Location Name

Room 2

Track

11:50 - 14:55 Process Intensification