摘要 |
<p>To control a biological clarification stage of the aerobic activated sludge type, one or more of the micro-organisms most frequently present in the activated sludge are monitored continuously with respect to the amount present by, in a representative sample taken from the activated sludge and/or the feed, to the activated sludge basin binding these micro-organisms to fluorescence-labelled antibodies specific to the selected micro-organisms or by allowing these micro-organisms to convert fluorogenous substrate through a specific metabolic activity, determining the quantity of micro-organisms fluorescence-labelled in this way by through-flow cytometry and, at the same time, determining the total quantity of micro-organisms present by scattered light measurement and/or staining of the DSN and, dependent on the measurement values thus obtained, controlling the quantity of one or more of the micro-organisms determined and/or the growth conditions for these micro-organisms. …<IMAGE>… </p> |