Name

Veolia's RTC system Hubgrade making significant energy reduction and operation efficiencies at Seafield WWTP

Speakers

Matthew Langdon, Louis Larsen

Authors

Matthew Langdon, Veolia Water Technologies, UK
Louis Larsen, Veolia Water Technologies, Denmark

Description

Veolia have implemented their real time control system at Seafield, Scotland's largest treatment works treating approx 300million litres of waste water daily. 

Key aims of the project were to reduce aeration energy by 15% and a 50% reduction in RAS pumping energy, whilst improving hydraulic capacity to reduce the need to use a 9th FST that is positioned away from the other 8 FSTs at site. 

Key features employed from the Hubgrade portfolio of developed modules included;
- DO control/set point determination
- Limiting nitrification 
- RAS control to reduce pumping costs
- Sludge Age Control

Each of these features brings operational & financial benefits to the site, but above and beyond that additional benefits such as reducing risk of nitrification, reducing risk of sludge escape, and adjusting the sludge blanket levels in the secondary in dry & wet weather conditions along with optimisation of the sludge balance between process tanks and secondary brings an improvement to hydraulic capacity and enhanced treatment capacity during storms. 

Improving the plants operational and environmental performance whilst also improving energy usage reducing the carbon footprint associated with the works. 

Baseline numbers are being calculated currently and we will have performance data for the 1st 3 months operation before the conference.

Time

3:33 PM - 3:45 PM

Location Name

Room 2

Track

14:05 - 15:45 Technology Showcase