The Situation Sara Lee operates a production facility in Florence, AL that operates 6 pork sausage cookers. The pork sausage cookers previously used electrostatic precipitators (ESP’s) to treat the grease and smoke-laden exhaust. Two ESP’s were handling all six cooker lines. The ESP’s were aging and losing effectiveness and ongoing maintenance and operating costs were high. Filter technology had proven to be ineffective, requiring fr

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