WSSC Piscataway WRRF Bio-Energy Project

Using green technology to create a regional biosolids facility.

Wastewater Treatment Facility
Location
Accokeek, MD
Delivery Method
Design-Build
Client
WSSC Water
Year Complete
2024

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.

READ MORE ABOUT THIS PROJECT

$3M

Annual Savings in Reduced Operating Costs

3M

Gallon Anaerobic Digestion Capacity

1,000

Cubic Yard Imported Cake Storage Capacity