American Council of Engineering Companies
2005 Engineering Excellence Merit Award
CATEGORY C - ENVIRONMENTAL
WASTEWATER TREATMENT FACILITY UPGRADE
SPRINGFIELD, VERMONT
PROJECT HIGHLIGHTS
FUNDING
- Assisted in getting special legislation to provide
one-time $2.1M Phosphorus Grant.
- Unique combination of funding resulted in only $1.8M
of loans for $11M total project cost.
- Completed on time and $2.2M below budget.
INNOVATION
- New headworks building with vortex grit removal system, mechanical
fine screen and influent flow meter.
- New septage receiving facility with peristaltic pump for controlled
septage feeding.
- New anaerobic selector tank with submersible mixers to optimize
biological phosphorus removal and significantly reduce chemical use and sludge
disposal costs.
- New aeration tank with high efficiency fine bubble aeration
system and aeration blowers with variable frequency drives.
- New secondary clarifies with spiral rake blades, stamford baffles,
and algae sweep automation.
- New ultraviolet (UV) open channel disinfection with low intensity
horizontal lamps with flow proportional controls to save energy.
ECONOMIC
GROWTH
- Additional flow and solids handling capacity allows for economic
growth throughout the community including $27M correctional facility, future
industrial park and other businesses at I-91 interchange.
COMPLEXITY
- Defined significant and complex sequencing to allow new construction
to proceed in an efficient and practical manner, while maintaining existing
treatment functions on very tight site.
TECHNOLOGY
- New state-of-the-art Programmable Logic Controller (PLC) controls
entire treatment process, replacing antiquated analog controls.
- New Supervisory Control And Data Acquisition (SCADA) system
monitors all treatment processes and includes telemetry to transmit remote
alarms for all critical treatment units to the operator that is on call.
Also includes remote control software and a laptop computer for operator
access from home to acknowledge alarms and to monitor and control process
elements to minimize overtime site visits.
Photo
and award plaque
