Total system concepts for municipal and governmental applications – water and wastewater treatment, methane gas recovery and central vacuum cleaning of schools, buses, administrative offices and other local public facilities.
Municipal water and wastewater aeration systems
For your water and wastewater aeration needs, look for systems rather than just blowers. And look for the most efficient package that will deliver air at the lowest net energy cost. You can save tens of thousands of dollars annually with Spencer systems that are process-optimized and technology-ready for the latest Biological Nutrient Removal (BNR) and Membrane Bioreactor (MBR) concepts.
Spencer’s aeration systems include energy-efficient multistage centrifugal blowers, variable frequency drives, dissolved oxygen controls, and in-house designed and built electrical control systems. Spencer has years of experience and hundreds of systems installed worldwide. We will design your entire system and accept responsibility for the integrated operation of all system components that we provide.
Grit collection tank aeration
Multistage centrifugal and regenerative blowers
|Headworks building aeration||Multistage centrifugal and regenerative blowers|
|Aeration building||Multistage centrifugal blowers|
|Channel aeration||Multistage centrifugal and regenerative blowers|
|Sludge/Digestion||Digester gas boosters|
|Compost building||Single stage and multistage centrifugal blowers|
|Sludge dewatering building||Multistage centrifugal and regenerative blowers|
Spencer’s total aeration system package
Power Mizer® high efficiency centrifugal blowers
Variable frequency drives
Dissolved oxygen control systems
Blower & motor protection panels
Motor control centers
Aeration system engineering
Electrical controls design expertise
Mechanical system components
Methane – noxious pollutant or potent energy source?
But first, you have to establish a stable supply at a boosted pressure. Our digester gas boosters are so effective at this, we have seen engineering specifications that read: “Sludge gas booster blowers shall be The Spencer Turbine Company, Model GH, or equal. Engineer knows of no equal.”
To deal with the highly corrosive and flammable gas, the gas booster is made of stainless steel with anodized aluminum fans and Inconel electrical connectors. An explosion-proof motor is located inside the gas booster housing, where it is cooled by the digester gas flow. Spencer’s completely hermetic design has zero leakage to the environment.
Spencer supplies its digester gas boosters as a complete turnkey module, skid-mounted and ready for utility hookups. Each package has its own control panel, hermetically sealed gas booster, isolation valves and other customized components such as a gas aftercooler/intercooler and stainless steel piping.
If your system has varying combustion fuel requirements, Spencer engineers can add a recirculation system with bypass piping. The bypass loop keeps gas flowing through the gas booster at all times for motor cooling, even when output flows are reduced.
Spencer digester gas booster advantages
- Multistage, continuous-duty gas booster
- Explosion-proof motor and controls
- Hermetically sealed for zero leakage
- Self-contained, prewired and prepiped
- Very high corrosion resistance
- Customized for new or retrofit installations
Natural gas dilution system when flow is low
Like Spencer’s digester gas booster, the natural gas dilution system is furnished as a skid-mounted package. All system components are mounted and interconnected on a common skid that is designed to fit the exact dimensions of a new or retrofit installation.
Landfill gas extraction – another Spencer innovation
The rest of the story – more municipal Spencer contributions
Water treatment plants
|Power Mizer blowers provide air for filter cleaning in air scour/filter backwash systems|
|Public schools||Central vacuum cleaning systems for indoor air quality improvement, facility-wide sanitation, liquid spills pickup, vacuum-assisted shop tools|
|Public transportation||Central vacuum systems with extra-long hoses to clean bus fleets and rail cars|
|Police and fire facilities||Central vacuum systems for quiet, thorough cleaning of Call Centers, protecting sensitive communications equipment from dust contamination|
|Theaters, public halls||
Central vacuum systems can be ideally configured for cleaning long rows of seats and carpeted or bare floors
Power Mizer® aeration blower for municipal wastewater treatment has a companion Spencer control system with PLCs, dissolved oxygen control logic, operator interface keyboards, modem software for factory communication and motor control centers.
Spencer central cleaning systems for schools turn classrooms into cleanrooms with their high-powered cleaning ability and specialized tools for carpeted floors and other surfaces.
Spencer natural gas dilution systems give municipalities the ability to utilize digester gas as their primary fuel, with natural gas as a supplementary backup when needed.
Digester gas boosters help municipalities develop a new fuel source from their sanitary landfills and wastewater treatment plants.
Complex Spencer control instrumentation was part of a $1 million municipal wastewater aeration system upgrade. All panels and circuitry were designed and built by Spencer.