RETHINKING DISSOLVED AIR FLOTATION (DAF) …

RETHINKING DISSOLVED AIR FLOTATION (DAF) DESIGN FOR INDUSTRIAL PRETREATMENTC harles C. Ross, M. Smith, Valentine, Treatment Systems, Box 94005 Atlanta, Georgia 30377 ABSTRACTD issolved air FLOTATION (DAF) has been used with increasing frequency in recent decades for thetreatment of industrial wastewater. Advances in the technology have expanded the range ofapplications for DAF; however, engineers and designers frequently use outdated and insufficientdesign data to design and specify DAF systems for industrial pretreatment. Discussions ofadvances in DAF design are discussed, including recycle pressurization, improved whitewatersystems, enhanced chemical programs, and expansion of manufacturers base of experience inindustrial applications. The need for treatability testing is also emphasized. A case studyillustrating these advances is presented, describing the application of DAF at a poultry air FLOTATION , DAF, industrial wastewater, industrial pretreatment, poultry renderingINTRODUCTIOND issolved air FLOTATION (DAF) has gained widespread usage over the last forty years for theremoval of suspended solids (TSS), oils and greases (O&G), and biochemical oxygen demand(BOD) from wastewater and other industrial process streams.

RETHINKING DISSOLVED AIR FLOTATION (DAF) DESIGN FOR INDUSTRIAL PRETREATMENT Charles C. Ross, P.E. Brandon M. Smith, E.I.T. G.E. Valentine, Jr. Environmental Treatment ...

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  Rethinking, Flotation, Dissolved, Rethinking dissolved air flotation

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