Interpretation of radiotracer experiments in an industrial battery of desanders with simultaneous stochastic and non-stochastic flows.

Radiotracer experiments have been conducted in an industrial battery of twelve desanders located at the water treatment plant of Lima. The flow behavior is complex because it includes the superposition of a stochastic flow, which is intrinsic to the process itself, and of a non-stochastic flow induced by local strong currents at the surface. These currents are non-stochastic because they are different from one desander to another one even if all the desanders are identical.