Iwugo & Winnicki


A Study of the mixing characteristics of sewage stabilization ponds using radioactive tracers, by K.O. Iwugo and R. Winnicki, Zambia Journal of Science & Technology, Vol.1, no.3, July 1976, Pg. 85-94


The performance of two sewage stabilization ponds was evaluated by measuring actual retention times of wastewaters in these ponds with radioactive tracers. The results of this investigation, together with some observed anomalies, are discussed. A comparative study of the use of tritium and Cr-51-EDTA complex for the measurement of residence time is presented.

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