Liquid treatment process with in-plant pressure monitoring of submerged diffusers
AssigneeITT Manufacturing Enterprises, Inc.
InventorsFrank L. Schmit, Lloyd Ewing, David T. Redmon
Life of this patent
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Abstract
The disclosure relates to obtaining dynamic wet pressure in a wastewater treatment plant. A difusser submerged in wastewater is connected to an air supply. This diffuser has an air flow regulator, a diffusion element to discharge the air into the wastewater, and a plenum situated between the element and the flow regulator. Pressure taps sense pressure in the pipe and the plenum. Manometers are used to determine hydrostatic head, pressure drop across the element, and pressure drop across the air flow regulator. Air flow regulator pressure drop and pressure/flow characteristics may be used, with other required information, to calculate dynamic wet pressure across the diffusion element.
Claims27
A process for treating a liquid medium comprising the steps of
- introducing treating gas into a gas distribution network having a submerged portion in said liquid medium in a plant for treating said liquid medium;
- passing treating gas through a plurality of diffusers having diffusion elements submerged in the medium, wherein foulants in the medium or treating gas may tend to form deposits in the elements or at their surfaces and cause a potential or actual increase in the dynamic wet pressure of the diffusion elements relative to a previous base condition of said elements;
- and
- measuring, at a submerged diffusion element in said plant, an operating parameter that is indicative of dynamic wet pressure across the diffusion element.
A process of treating a liquid medium comprising the steps of
- introducing treating gas into a gas distribution network having a submerged portion in said liquid medium in a plant for treating said liquid medium;
- passing treating gas through a plurality of diffusers comprising diffusion elements submerged in the medium, wherein foulants in the medium or treating gas tend to form deposits in the elements or at their surfaces, causing a potential or actual increase in the dynamic wet pressure of the diffusion elements relative to a previous base condition of said element;
- and
- measuring, at a submerged diffusion element in said plant, changes in operating parameters that indicate dynamic wet pressure changes across the diffusion element.
Dependencies are inferred from the claim text.