Methods for estimating drainage load and drainage treatment methods

Abstract

This invention provides a method for estimating drainage load that prevents sludge from adhering to a drainage contact-type measuring instrument and allows for stable measurement of water quality or operational management parameters of drainage, as well as a drainage treatment method that allows for stable drainage treatment. In the method for estimating the drainage load of a drainage treatment device, the device allows drainage from individual or multiple series to flow into a regulating tank, from which drainage is then transported. In the case of multiple series, located upstream of the regulating tank and downstream of the confluence of drainage from each series, a drainage contact-side measuring instrument is used to determine or estimate water quality or operational management parameters, and the drainage load is estimated based on the determined or estimated values.

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