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RETHINKING DISSOLVED AIR FLOTATION (DAF) DESIGN FOR INDUSTRIAL PRETREATMENT

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Abstract:

Dissolved air flotation (DAF) has been used with increasing frequency in recent decades for the treatment of industrial wastewater. Advances in the technology have expanded the range of applications for DAF; however, engineers and designers frequently use outdated and insufficient design data to design and specify DAF systems for industrial pretreatment. Discussions of advances in DAF design are discussed, including recycle pressurization, improved whitewater systems, enhanced chemical programs, and expansion of manufacturers' base of experience in industrial applications. The need for treatability testing is also emphasized. A case study illustrating these advances is presented, describing the application of DAF at a poultry rendering facility.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864700785155795

Publication date: 2000-01-01

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