WSSC Piscataway WRRF Bioenergy Project
Using green technology to create a regional biosolids facility.
- Location
- Accokeek, MD
- Delivery Method
- Design-Build
- Market
- Water / Wastewater
- Client
- WSSC Water
- Year Complete
- 2025
- Region
- Mid-Atlantic
Project Overview
This $271 million project, utilizing cutting-edge green technology, will transform the way WSSC handles biosolids from all five of their water resource recovery facilities, significantly reducing the volume and creating Class A biosolids. The process will reduce operating costs by more than $3 million per year and reduce greenhouse gas emissions by 15% by capturing and cleaning the digester gas to help power the facility through the CHP facility.
The project includes a cake receiving facility for imported sludge, Cambi thermal hydrolysis process (THP), a CHP facility, pre- and post-dewatering presses, two 1.5-million-gallon anaerobic digesters and associated control building, odor control, gas upgrading system, gas storage and flare, sidestream treatment and refurbished gravity thickeners.
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Recognition
- Washington Building Congress Craftmanship Award - Power Generation, Distribution and Switchgear
- Washington Building Congress Craftmanship Award - Special Systems
$3.4M
Annual Savings in Reduced Operating Costs
3M
Gallon Anaerobic Digestion Capacity
1,000
Cubic Yard Imported Cake Storage Capacity
