PROJECT OF THE WEEK: GLOUCESTER COUNTY UTILITIES AUTHORITY WASTEWATER TREATMENT PLANT IMPROVEMENTS

The Gloucester County Utilities Authority (GCUA)recently completed stormwater improvements that are being funded with approximately $41.6 million in loans from the NJ Water Bank, a joint low-rate funding program of the DEP and the NJ I-Bank. Total savings for this project are estimated to be $20.6 million over the 30-year term of the loan or 50% of the total project cost. In addition, this project created an estimated 499 direct construction jobs.

The bio-solids handling facility converted the sludge handling process from sludge incineration to anaerobic digestion with combined heat and power generation. The project included the construction of an anaerobic digester, an egg-shaped digester, and a digested sludge storage tank. The existing grit removal system was replaced and the tanks were modified to accommodate the new equipment. The project also included the installation of clarifier equipment, an algae sweep system and upgrades to the GCUA's aeration system blowers which reduce energy consumption and perform more reliably with consistent dissolved oxygen control. As a result, the blowers mitigate potential upsets in the facility's biological process.

Robert M. Damminger, Freeholder of Gloucester County, commended the project, noting "This is a large project and a valuable undertaking for all of the 16 municipalities served by the GCUA. The generation of combined heat and power, in addition to other wastewater plant improvements, will enhance energy efficiency to better support the anaerobic digestion process. This project will greatly benefit our rate payers by providing efficient service and financial savings over time."

Paul Medany, Mayor of Deptford Township, one of the utility's customers, added "Using the byproducts of the GCUA to provide green energy for our citizens is a solution that is both environmentally friendly and cost effective, a big win for all of us."

This project was designed by Remington Vernick Engineers and constructed by CBI Services, Clyde N. Lattimer & Sons, and Pact Two, LLC.

Pictures courtesy of Remington Vernick.