Iron-59 as Solids Tracer Aqueous Suspensions

by M. R. Scalf,
J. L. Witherow,
Charles P. Priesing,

Serial Information: Journal of the Sanitary Engineering Division, 1968, Vol. 94, Issue 6, Pg. 1195-1212

Document Type: Journal Paper


A radioactive tracer is introduced for following the movement of particulate matter in sewage treatment processes. By combining this radio-tracer with dye tracers, the hydraulic characteristics of several aeration tanks and final clarifiers were investigated. Particulate matter was found to travel through a sewage suspension faster than the liquid portion. Some center-feed radial flow type final clarifiers indicate appreciable short circuiting of mixed liquor to the return sludge outlet. Investigations of some aeration tanks designed for plug flow indicated that hydraulic conditions ranged from near plug flow to those approaching complete mixing.

Subject Headings: Iron compounds | Probe instruments | Turbidity | Particle pollution | Sewage | Aeration | Wastewater treatment | Clarifiers

Services: Buy this book/Buy this article


Return to search