Newtown Creek WWTP Alternative Thickening Evaluation Study Client: NYCDEP Location: New York, NY With a goal to reduce operation & maintenance (O&M) requirements and address aging infrastructure and budget constraints, the New York City Department of Environmental Protection (NYCDEP) partnered with Hazen and Sawyer to evaluate the feasibility of numerous solids thickening alternatives to meet current and future thickening needs for the Newtown Creek WWTP. A desktop study that evaluated 20 existing and future operating scenarios identied gravity belt thickeners (GBTs) to be the most benecial thickening technology. Following the desktop evaluation, Hazen and NYCDEP closely collaborated on a one year, on- site, full-scale pilot study to rene the evaluation of GBT performance, O&M require

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