USE OF 131I TO INVESTIGATE THE HYDRODINAMIC IN AN AEROBIC WASTE WATER TREATMENT TANK

Resumo

In this study, the flow parameters of an industrial waste water treatment plant were investigated using radiotracer ¹³¹I on a large-scale rectangular tank filled with activated sludge. The radiotracer cloud movement was registered by six scintillator detectors: Five scintillator detectors were positioned within the tank, and one detector was positioned outside to register the output signal.In the first injection the results showed there was a channeling flow, and after changing the exit pumping system, another injection was done, and the result showed that the channeling problem did not occur anymore.