Existing Strategies Since 2007 – CARBON Team
Landfill Gas Recovery
Landfill Gas Recovery System Improvements at the Wilder's Grove Landfill
SWS Split Body Trucks
Reduced the number of trips to Central Business District by using split body
trucks to collect solid waste and recycling at same time
Pump Station Visitation
Reduction
Reduced the number of visits to wastewater pump stations through improved
reliability of telemetrics at the stations which remotely report to Operations
Reclaimed Water at Neuse
River WWTP
Using reuse water in toilets at the Neuse River WWTP and for odor control
scrubbers at wastewater pump stations
Reclaimed Water
Reduced wastewater effluent nitrogen discharged
Water Efficiency
Reduced potable water treatment and pumping costs; reduced wastewater flows
and effluent nitrogen discharged
Streetscapes Project
Public Works planted 5,000 trees along Fayetteville Rd as part of Streetscapes
Project
Native Seeds
Parks and Recreation is growing local sources of seeds for park properties,
including trees and landscape plants; reduced vehicle fuel use
Parks and Recreation
Greenhouse
Constructed a new energy efficient Parks and Recreation greenhouse;
reductions in energy usage for cooling and heating the facility
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Wilders Grove Landfill Yields
Green Energy & Revenues
The City of Raleigh captures the methane gas
produced by waste decaying in the landfill. This gas is
then used to produce steam to power manufacturing
operations at a local industry, Ajinomoto USA. The City
receives monthly royalties for the use of the landfill gas
and this potentially explosive gas is also removed from
its property.
Through the use of methane recovery Wilders Grove
Landfill has enabled the City to reduce its carbon
footprint by capturing and selling over 176 billion BTUs
annually, which earns approximately $90,000 per year.