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Integrated Approach to Biosolids Management for a Utility with Multiple Small Facilities

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Abstract:

To assure that Polk County Utilities (PCU) is ready for coming changes in regulations and ever increasing solids production from ten treatment facilities geographically dispersed throughout the County, the County wanted to develop a proactive long term biosolids management plan that integrated residuals management approaches among the various treatment plants. Geographical dispersion and capacity diversity combined with a desire for an integrated long-term management plan gave rise to a number of possible alternatives to be included in the evaluation. The landfill disposal alternative investigated met PCU's objectives which were to identify a cost effective method for managing current and future biosolids generated at PCU's facilities that would represent a viable plan for the next twenty years. An agreement developed between PCU and Polk County's Solid Waste Division to mutually address disposal of leachate and biosolids resulted in significant cost savings for both these County agencies.

Keywords: Biosolids; Centrifuge; Dewatering

Document Type: Research Article

DOI: https://doi.org/10.2175/193864710798158733

Publication date: 2010-01-01

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