Effect of Flocculation on Activated Sludge Settling Behavior

by George A. Farnsworth, Envir. Engr.; Brauer and Assocs., Eden Prairie, MN; formerly, Grad. Student, Univ. of Illinois, Urbana, IL,
Richard I. Dick, (M.ASCE), Prof. of Civ. Engrg.; Univ. of Delaware, Newark, DE; formerly, Prof. of Civ. Engrg., Univ. of Illinois, Urbana, IL,

Serial Information: Journal of the Sanitary Engineering Division, 1972, Vol. 98, Issue 5, Pg. 812-817

Document Type: Journal Paper


If close control and economical design of the activated sludge process are to be achieved, settling tank design practices must be based on a clear understanding of the mechanisms of sludge settling. The work reported herein was undertaken to evaluate the manner in which the degree of agglomeration of activated sludge solids influences setting characteristics.

Subject Headings: Flocculation | Activated sludge | Economic factors | Sedimentation tanks | Wastewater treatment | Solid mechanics

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