Evoqua Water Technologies Pte. Ltd.

Allen Lepak

Jeffrey P Germait

Donald J Thiel

Govardhan R Katta

A system for monitoring bearing wear in a circular clarifier drive is provided. The system includes a drive motor comprising at least one gear operatively coupled to at least a bridge platform, skimmer, and header of the circular clarifier drive. The at least one gear is rotatable within a housing of the circular clarifier drive on a plurality of bearings positioned therebetween. The system further includes at least one sensor constructed and arranged to measure a gap between at least one stop block of the housing and the at least one gear and determine if the measured gap is within a predetermined range. Methods of retrofitting a circular clarifier drive including a drive motor operatively coupled to at least one gear disposed within a housing and a plurality of bearings positioned between the at least one gear and the housing are also provided.

Bearing wear monitoring device for circular clarifier drive

An apparatus for wasting flocculant sludge from a clarifier is provided including a wasting pipe fluidly connectable to a waste conduit, a manifold fluidly connectable to the wasting pipe, an upper header for collecting the flocculant sludge fluidly connectable to the manifold, a return sludge pipe fluidly connectable to a return sludge well, a lower header for collecting settled sludge fluidly connectable to the return sludge pipe, and a drive mechanism for rotating the upper header and the lower header about a center axis. A wastewater treatment system is provided including the clarifier fluidly connectable to a source of a mixed liquor and the apparatus for wasting flocculant sludge. A method of separating settled sludge from a clarifier is provided including withdrawing flocculant sludge and withdrawing settled sludge. A method of retrofitting a clarifier is also provided including providing the manifold, the upper header, and the drive mechanism.

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Mukwonago, WI, United States of America

Allen Lepak