Newtown Creek Alternative Thickening Evaluation Named ACEC NY Diamond Award Winner
(NEW YORK, NY – November 5, 2015) – The Newtown Creek Alternative Thickening Evaluation project has been named an ACEC-NY Engineering Excellence Diamond Award winner.
The New York City Bureau of Wastewater Treatment partnered with the project team, including prime consultant Hazen and Sawyer, to evaluate the feasibility of numerous biosolids thickening alternatives, focusing on operation and maintenance (O&M) impacts and potential cost savings. Broad and ambitious in scope, this comprehensive study involved review of the life cycle costs associated with existing operations and all alternatives. A matrix was used to compile the 20 alternatives and evaluate each using 40 quantitative parameters to facilitate direct, unbiased comparisons. Capital and O&M costs were used to calculate 20-year net present values (NPVs) and payback periods.
The study phase of this project determined that Gravity Belt Thickeners (GBTs) could offer significant benefits compared to the existing centrifuges. Projections indicate that GBTs could potentially reduce annual O&M costs by $3 M by improving performance, simplifying operations, reducing maintenance, and decreasing energy consumption. Those savings could generate a 20-year NPV savings of $21.5 M. Consequently, the capital investment in GBTs could pay for itself in 10 years.
The winners will be honored at the 49th Annual Engineering Excellence Awards (EEA) Gala, which will take place at the Waldorf Astoria in New York City on March 19, 2016. The winner of the Empire Award — an award given to the highest rated project in New York State — will be announced at the EEA Gala. All Diamond Award projects designed and built in New York State are in contention for the Empire Award.