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conversion drom dual to single stream recycling

Conversion from Dual to Single-Stream Recycling

Background

The Waste Commission of Scott County, IA, operated a dual-stream recycling material recov­ery facility in Davenport, Iowa since 1996. Foth assisted the Commission to evaluate the feasibility of convert­ing the dual-stream collection and processing recycling system to single-stream, which included:

  • collection improvements
  • volume of recycling material
  • projected composition
  • projected market value of processed recyclables
  • sources of additional material
  • financial model for the system to identify costs, revenues and volumes that would create a viable single-stream system
  • concepts for conversion of the existing facility
  • methods for single-stream cart procurement

Approach

Foth developed and managed parallel processes for the design-bid-construction of building and site improvements and the Commission’s procurement of processing equipment. The net change orders for the construction contracts for facility and equipment totaled approximately 2% of the total construction cost.

Results

The parallel approach saved the Commission approximately $300,000 and reduced the project’s duration from design to start-up to approximately 13 months.  Material volumes being received during the first six months of operation exceeded the initial predictive modeling used in the financial feasibility analysis.

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