Tampa Bay Seawater Desalination Plant, Florida, USA
Key Data:
Location
Southern Hillsborough County, Florida
Plant type
Seawater Reverse Osmosis (SWRO)
Production (at initial full capacity)
95,000m³/day
Future expanded production
132,000m³/day
Maximum design potential
190,000m³/day
Water price (projected 30-year average)
$0.659/m³
Water price with co-funding
$0.497/m³
Project cost
$150 million
Membrane facility footprint
2,750m²
Filtration systems
Two-stage sand filtration (intake); 5 micron cartridge (RO train)
Pump types
800hp vertical turbine (transfer); 2,250hp horizontal split case high pressure (RO feed pump)
Number of RO treatment trains
7
Minimum rated production
16,000m³/day per membrane battery
Component pressure vessels
168 per battery
Membrane elements
Eight per vessel
Feed pressure
Variable 625psi to 1,050psi
ERT energy recovery
1,000hp (max)
Lime contactor average retention time
3 minutes
Water Data:
Raw water source
Power station cooling water
Intake volume (at initial full capacity)
166,000m³/day
Intake salinity
18ppt to 32ppt
Average intake water TDS
26,000mg/l
Post-filtration SDI
>5
Product water minimum hardness
50mg/l of calcium
Average concentrate discharge dilution
70:1
Project Timeline:
Initial call for proposals
October 1996
Pre-qualification
1997
Final proposals
February 1999
Contract awarded
July 1999
Permitting began
November 1999
Approvals gained
Spring 2001
Construction commenced
August 2001
Final operating permits obtained
November 2002
Construction completed
Spring 2003
First water production (20,000m³/day)
March 2003
First acceptance test
May 2003
Plant placed in standby mode
February 19, 2004
Proposals sought for plant remediation
March 2004
Remediation contractor selected
November 2004
Large-scale pilot testing begins
January 31, 2005
NPDES minor permit modification application submitted
June 2005
Plant remediation design completed
September 2005
Remediation commenced
October 2005
Plant remediation completion
Spring 2007
Acceptance test concluded
November 2007
Plant fully operational
End of 2007
Key Players:
Client
Tampa Bay Water
Remediation contractor/final operator
American Water-Pridesa
Remediation design engineering
Hatch Mott MacDonald
Client’s consultants
R. W. Beck
Project Engineer
King Engineering
Original lead contractor
S&W Water (Stone and Webster - Poseidon Resources JVC)
Later lead contractors
Poseidon Resources with Covanta Energy (2000-1); then with Covanta Tampa Construction (2001-2); finally Covanta Tampa Construction alone
Transmission main construction
Garney
Ductile iron pipe and fittings
American Cast Iron Pipe
Other contractors
The Industrial Company; Ogden Water Systems
