Patent · US Active

Regulating method for a water treatment installation using measured parameters and control of an ozonisation device

US10287182B2 · kind B2 · utility

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9Claims

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Assignee

Xylem IP Management S. à r.l. · LU

Inventors

Achim Ried · Bad Oeynhausen, DE
Arne Wieland · Minden, DE
Ivan Zhu · Shanghai, CN

Key dates

Filing date	May 12, 2015
Grant date	May 14, 2019
Priority date	—
Expiry date	Aug 2, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W10/10
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

Method for controlling a water treatment installation having a supply, an ozonization stage, a transfer stage, a biological filter and a discharge having the following steps: measuring a first parameter set in the supply, wherein, a measurement for a first concentration of micro-contaminations and/or a nitrite concentration is determined; controlling the ozonization stage in such a manner that an ozone supply is carried out in a preselected ratio to the measured first parameter set; measuring a second parameter set in the transfer stage, wherein, a measurement for a second concentration of micro-contaminations is determined; controlling the ozonization; measuring a third parameter set in the discharge, wherein, with reference to the third parameter set, a measurement of a third concentration of micro-contaminations is determined; if the measurement for the concentration of micro-contaminations exceeds a predetermined maximum value in the discharge, increasing the ozone supply.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.