A simple algorithm for on-line prediction of BOD(5) by a microprocessor-based system.
A novel algorithm for predicting BOD(5) from the dissolved oxygen (DO) concentration after a relatively short incubation period is presented and evaluated experimentally. Test runs on synthetic and experimentally derived raw data suggest that BOD(5) can be predicted to within 15% ca. 36 h. The method can be improved by filtering out, via a digital filter, noise from the raw data. The suggested algorithm does not require elaborate computations or large data storage and can therefore be implemented on a low-cost microcomputer for fast on-line determination of BOD(5).
Department of Electrical and Computer Engineering, Ben Gurion University of the Negev, Beer Sheva, Israel.
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Raviv
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Ben-Yaakov