Dairy Packaging Facility’s Wastewater Woes, MBBR-Activated Sludge Process Optimization, and Reduction of Sludge Production and Disposal Costs
Kan-Pak produces and packages dairy products, ice cream and coffee mixes, and nutritional beverages. Prior to July 2007, the facility did not pretreat its wastewater prior to sewer discharge. In 2007 authorities required the facility to install a pretreatment system to come into compliance with local ordinances and meet limits for biochemical oxygen demand (BOD), total suspended solids (TSS), and fats, oil and grease (FOG).
The facility segregated high-strength waste for off-site treatment, but with production increases; the facility was facing up to $1m in annual surcharges and up to $1m in high-strength waste hauling charges. The facility investigated several options for pretreatment.
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