Whipsnade Wild Animal Park, Wastewater Treatment Upgrade, Dunstable, United Kingdom
Key Data:
Inflow type
Treatment type
Treatment type
Screening, package treatment plant and reed beds; attenuation ponds and holding tanks; treated water return re-circulation
Reed beds
Sequential terraced
Substrate hydraulic permeability (ideal)
10-3m/s to 10-4m/s
Minimum oxygen flux / influent BOD ratio
1.5:1
Discharge - BOD5
<20 mg/l
Discharge - N-NH3
<5 mg/l
Installed pumps
Wilo-Drain TP 40 S
Project cost
Approx. £750,000
Project Timeline:
Phase 1 commencement
May 2004
Phase 1 completion
September 2004
Phase 2 commencement
January 2005
Phase 2 reed bed planting
May/June 2005
Phase 2 completion
August 2005
Phase 3 anticipated commencement
Q4 2005
Phase 3 anticipated completion
Q1 2006
Key Players:
Client
Zoological Society of London
Regulatory body
Environment Agency
Main contractor
Alpheus Environmental
Civil engineers
Clarets
Consultants
RSK ENSR
Pumps
Wilo
Other contractors
Waterproofing Services; Merton Hall Pond
