Device for decanting a supernatant received in a clarifier
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United States of America Patent
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Mar 7, 2017
Grant Date -
Apr 30, 2015
app pub date -
Mar 20, 2013
filing date -
Apr 27, 2012
priority date (Note) -
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Abstract
A device for decanting a supernatant includes a decanter which is pivotally attached to a clarifier and which includes a decanter head that has a water inlet opening, a pivoting device which is connected to the decanter via an actuator with an adjustable length for raising and lowering the water inlet opening relative to a floor of the clarifier, a first measuring device for measuring a fill level of the wastewater received in the clarifier, a device for determining a length of the actuator, an evaluating device with which a distance of the water inlet opening of the decanter to the floor of the clarifier can be determined from the length of the actuator, and a controller for controlling the pivoting device such that a water inlet opening immersion depth, which results from the difference between the fill level and the distance, is kept in a specified range.
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