Abstract: The control systems and technique can regulate or control operations of a water treatment system in a primary control mode and, when appropriate, in a secondary or an alternate control mode. The primary control can represent a normal control mode during which the water treatment system is intended to operate. The alternate control mode can represent a second control or mode of operation. The systems can be operated to control or facilitate regulation, monitoring, and performance of one or more operating parameters of one or more water systems between, or to and from, a first mode, a second or alternate mode, and, in some cases, a third or even a fourth control mode. The change in control mode can be triggered by identifying one or more predetermined, pre-selected, and/or programmed conditions.
Type:
Grant
Filed:
March 28, 2008
Date of Patent:
January 11, 2011
Assignee:
Siemens Water Technologies Holding Corp.
Inventors:
Richard Dennis, II, Jeffrey Rhodes, Edward Thomas, James Marcukaitis
Abstract: In a tank for treating wastewater and including a first plurality of air diffuser elements and a second plurality of air diffuser elements, means for adjusting the relative height of the first diffuser elements with respect to the height of the second diffuser elements in response to changing operating conditions in the tank and changes in the characteristics of the diffusers.
Type:
Grant
Filed:
November 29, 2006
Date of Patent:
January 4, 2011
Assignee:
Siemens Water Technologies Corp.
Inventors:
John Lechner, Lawrence B. Ratzlow, Peter Petit