EVALUATING SOLIDS HANDLING RECYCLE STREAM IMPACTS: A KEY COMPONENT OF BIOSOLIDS PLANNING
Abstract:The impact of solids handling recycle streams on overall solids production, process oxygen demand, and final effluent discharge limit compliance is an important consideration for biosolids planning. Recycle stream characteristics vary with alterative solids thickening, stabilization, conditioning, dewatering, and destruction processes. Recycled suspended solids can affect primary and secondary treatment process performance; however, recycled dissolved constituents resulting from a particular solids handling train can have an even greater impact. The impacts of BOD, nitrogen, and phosphorus in these recycle streams can be considered in the project planning stage using a structured modeling approach. This approach was used in the evaluation of the Zimpro wet air oxidation process at the Southerly Wastewater Treatment Center in Cleveland, OH.
Document Type: Research Article
Publication date: January 1, 2003
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