shows effluent concentrations and removal efficiencies of the different
treatment stages of Alto Seveso WWTP (i.e., effluent after the
biological compartment, effluent after the coagulationflocculation-
clarification stage and final effluent after ozone
treatment). While influent and effluent concentrations of the
full-scale plant are measured for the daily 24-h flowproportional
composite samples, concentrations after the
biological compartment and after coagulationeflocculationclarification
are determined for instantaneous grab samples