Location

London

Event Website

http://www.csce2016.ca/

Description

The Vauxhall Pollution Control Plant (PCP) is one of the first Ontario municipal wastewater treatment plants to have implemented a wet weather strategy that involves chemically enhanced primary treatment (CEPT) and chemically enhanced secondary clarification processes and repurposes existing infrastructure.

Wet weather events were a major concern for the City of London (City). Prior to plant upgrade, when major wet weather flows occurred plant overflow would discharge directly into the Thames River. The solution designed by Dillon Consulting Limited treats wet weather flows of nearly ten times the rated average day plant capacity. The average and peak flow treatment capacity of the treatment plant is 20,900 m3/d and 34,640 m3/d, respectively. The wet weather operating strategy accommodates peak plant flows of about 200, 000 m3/d and includes:

  • New Headworks incorporating grit removal and fine screens sized to handle maximum wet weather flows
  • Chemically enhanced primary clarification to increase wet weather treatment capacity of existing primary clarifiers to 150, 000 m3/d
  • Increased biological treatment capacity of the existing system using chemically enhanced secondary clarification. The treatment capacity of the biological treatment process is increased to 50,000 m3/d


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Jun 1st, 12:00 AM Jun 4th, 12:00 AM

ENV-647: REPURPOSING EXISTING INFRASTRUCTURE FOR ENHANCED WET WEATHER FLOW TREATMENT FOR VAUXHALL PCP, CITY OF LONDON

London

The Vauxhall Pollution Control Plant (PCP) is one of the first Ontario municipal wastewater treatment plants to have implemented a wet weather strategy that involves chemically enhanced primary treatment (CEPT) and chemically enhanced secondary clarification processes and repurposes existing infrastructure.

Wet weather events were a major concern for the City of London (City). Prior to plant upgrade, when major wet weather flows occurred plant overflow would discharge directly into the Thames River. The solution designed by Dillon Consulting Limited treats wet weather flows of nearly ten times the rated average day plant capacity. The average and peak flow treatment capacity of the treatment plant is 20,900 m3/d and 34,640 m3/d, respectively. The wet weather operating strategy accommodates peak plant flows of about 200, 000 m3/d and includes:

  • New Headworks incorporating grit removal and fine screens sized to handle maximum wet weather flows
  • Chemically enhanced primary clarification to increase wet weather treatment capacity of existing primary clarifiers to 150, 000 m3/d
  • Increased biological treatment capacity of the existing system using chemically enhanced secondary clarification. The treatment capacity of the biological treatment process is increased to 50,000 m3/d

http://ir.lib.uwo.ca/csce2016/London/Environmental/27