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WATER TREATMENT PLANT CONTROLLING METHOD AND CONTROLLING PROGRAM, AND WATER TREATMENT SYSTEM

  • US 20160362305A1
  • Filed: 11/25/2013
  • Published: 12/15/2016
  • Est. Priority Date: 11/25/2013
  • Status: Active Grant
First Claim
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1. A water treatment plant controlling method comprising:

  • a correlation determination step of determining whether or not there is a correlation, in water to be treated, between a water quality index and a concentration of a pollution component having no causal relationship with the water quality index, from a result of sample analysis of the water to be treated performed periodically;

    a first pollution component concentration estimation step of, on a condition that there is the correlation, statistically analyzing a distribution of measurement values of the water quality index in a previous certain period of the water to be treated, and based on a result of the statistical analysis and the correlation, estimating the concentration of the pollution component of the water to be treated;

    a second pollution component concentration estimation step of, on a condition that the correlation is absent, statistically analyzing a distribution of concentration of the pollution component in past sample analyses of the water to be treated, and based on a result of the statistical analysis, estimating the concentration of the pollution component of the water to be treated; and

    selecting one of the first pollution component concentration estimation step and the second pollution component concentration estimation step based on a determination of the correlation determination step, and determining an operating condition of a water treatment plant for treating the water to be treated based on the concentration of the pollution component of the water to be treated estimated by the selected estimation step.

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