Research Article
Oct 1976
Trickling Filter-Activated Sludge Combinations
Authors: Robert F. Roskopf, M.ASCE, E. Robert Baumann, F.ASCE, and James C. Young, M.ASCEAuthor Affiliations
Publication: Journal of the Environmental Engineering Division
Volume 102, Issue 5
Abstract
Activated sludge processes were used on a pilot-plant scale as a means of upgrading trickling filter plants treating domestic wastewater. Parallel use of units provided increased hydraulic capacity and produced effluent BOD concentrations consistently below 25 mg/l. Series activated sludge-trickling filter or trickling filter-activated sludge processes produced effluent BOD consistently below l5 mg/l. This performance was maintained in all cases when operating at organic loadings up to about 50 lb BOD/day/1,000 cu ft (0.80 kg/day/m³) of treatment unit volume.
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Published In
Journal of the Environmental Engineering Division
Volume 102 • Issue 5 • October 1976
Pages: 1005 - 1018
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Oct 1976
Published online: Feb 11, 2021
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Authors
Affiliations
Robert F. Roskopf, M.ASCE
San. Engr., Rieke Carroll Muller Assocs., Inc., Hopkins, Minn.
E. Robert Baumann, F.ASCE
Prof., Dept. of Civ. Engrg. and Engrg. Research Inst., Iowa State Univ., Ames, Iowa
James C. Young, M.ASCE
Assoc. Prof., Dept. of Civ. Engrg. and Engrg. Research Inst., Iowa State Univ., Ames, Iowa
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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.
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