DAF issues and chemicals that reduce BOD, TSS, FOG

| February 22, 2015

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The following video is of a dissolved air floatation system (also known as a DAF) at a major food processing customer. The customer contacted Bond to evaluate and reduce the amount of TSS, FOG and BOD in their processed effluent in hopes of lowering their surcharges and getting back in favor with the local POTW. After an evaluation of the plant operations, wastewater stream strengths, treatment equipment and treatment chemistry a plan was initiated. Our major challenge is the DAF is undersized from an influent water flow and strength standpoint. The “air to solids ratio” is too low to properly float the solids with acid cracking chemistry and results in carryover.

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Amrep Inc.

Amrep Inc. is a wholly-owned subsidiary of Zep inc. (NYSE: ZEP), a leading producer and marketer of a wide range of high-efficacy commercial cleaning products and maintenance solutions for industrial, institutional, and consumer end markets. The breadth of the Zep’s commercial cleaning product portfolio provides customized, superior solutions to a broad customer base that includes manufacturers, food processors and preparers, restaurants, hospitals, schools, municipalities, government agencies, hotels and car washes.

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