Webinar | March 19, 2020

Wastewater Treatment — More For Less!

WWTP Capacity Expansion For Under $2M: Advanced Modeling, Real-Time Control, And Granular Activated Sludge

Aarhus Water’s wastewater treatment plant (WWTP) in the district of Viby in the City of Aarhus, Denmark is faced with a growing problem — rapid urbanization and growth requiring immediate expansion of wastewater treatment utilities from 90,000 PE (Population Equivalent, or unit per capita loading) to 120,000 PE (6 MGD to 8 MGD). Additionally, the city plans to consolidate the plant in 10 years to a central treatment facility. With a low budget for the aging plant and strict total phosphorus and nitrogen targets for waterbodies in the area, the Viby WWTP needs to optimize the existing infrastructure to support new inhabitants and industries.

DHI Water & Environment developed plant-wide models using WEST simulation software to evaluate the capacity of the Viby WWTP under various process configuration and control strategies. To ensure solids retention during rain events and increase settling rates, DHI and Aarhus Water partnered with TechRas to implement a granular activated sludge selection system.

This webinar will discuss how Viby minimized cost of expansion while answering the following:

  • What role does modeling play in expanding wastewater treatment capacity?
  • How can real-time process controllers reduce OPEX and ensure compliance?
  • How does WEST software benefit control system design?
  • How can a utility assess risk and implement new process configurations?
  • What can utilities do with existing infrastructure?
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