Method of controlling waste water purification plants using quality evaluation of measuring data
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United States of America Patent
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Aug 20, 1996
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N/A
app pub date -
Mar 22, 1994
filing date -
Oct 1, 1991
priority date (Note) -
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Abstract
A method of controlling a wastewater purification plant comprises the steps of measuring two or more of a number of parameters, automatically controlling the plant on the basis of the measurement values obtained using a mathematical model for the purification process, evaluating the quality of the measurement value for at least one parameter on the basis of a comparison of the said value with an expected, dynamic value interval calculated continuously on the basis of said mathematical model and a simultaneous and/or a previous measurement of one or several other parameters and/or a previous measurement of the same parameter, and controlling the plant on the basis of the quality evaluated measurement values.
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