Wendel was retained by the City of Dunkirk to perform complete engineering services to evaluate, design and construct various upgrades at the City’s 6 mgd Water Pollution Control Facility (WPCF). Wendel utilized NYSERDA’s FlexTech Program during the preliminary evaluation phase to identify energy operational efficiency measures that will assist the City in improving the energy and operational efficiency of the WPCF while simultaneously addressing the facilities upgrade needs. As part of the preliminary evaluation, multiple sludge stabilization and dewatering system alternatives were evaluated. The alternatives were compared based on capital and operating costs, ease of operation and maintenance, final product quality, reliability and energy usage.
As a result of the preliminary evaluation, the list of energy operational efficiency measures and facility upgrades that will be implemented at the WPCF include:Coarse and Fine Bar Screens ReplacementsEnhanced Grit Removal SystemAeration System Turbo Blowers UpgradesWendel also provided project funding assistance to the City including preparation and submission of applications and supporting documentation to the New York State Environmental Facilities Corporation Clean Water State Revolving Fund and Water Grants Program.
The improvements performed as part of the Dunkirk WPCF upgrade project included significant waterline and process water piping improvements. A new process waterline was provided as part of the new grit system, process piping was upgraded as part of the solids dewatering system upgrades, air supply piping was upgraded as part of the turbo blower and aeration diffuser upgrades and new process piping was installed as part of the grit system installation.