Research Article
Aug 1970
Mixed Liquor Solids Separation by Flotation
Publication: Journal of the Sanitary Engineering Division
Volume 96, Issue 4
Abstract
A full-scale dissolved air flotation unit, designed for solids-liquid separation of an activated sludge mixed liquor, was evaluated in a field investigation. The data indicate that conventional design parameters do not predict flotation performance in terms of effluent suspended solids. A new parameter was developed and is proposed as a rational design guideline. Performance of the unit is discussed in terms of float detention time and process design. Cost-quality comparisons of flotation versus gravity sedimentation with waste sludge thickening indicate that overall plant performance could have been improved for a substantial economic savings.
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Information
Published In
Journal of the Sanitary Engineering Division
Volume 96 • Issue 4 • August 1970
Pages: 861 - 871
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Aug 1970
Published online: Feb 12, 2021
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Authors
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Michael C. Mulbarger
Engr.-In-Charge, Manassas Field Station, Municipal Treatment Research Program, Advanced Waste Treatment Research Lab., Federal Water Quality Admin., U.S. Dept. of the Interior, Manassas, Va.
Donald D. Huffman, AM.ASCE
Civ. Engr.-Plant Superintendent, Greater Manassas Sanitary District, Prince William County, Va.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.