Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chicago Bridge and Iron Co
Original Assignee
Chicago Bridge and Iron Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/986,423external-prioritypatent/US5958249A/en
Application filed by Chicago Bridge and Iron CofiledCriticalChicago Bridge and Iron Co
Publication of CA2247641A1publicationCriticalpatent/CA2247641A1/en
Application grantedgrantedCritical
Publication of CA2247641CpublicationCriticalpatent/CA2247641C/en
Physical Or Chemical Processes And Apparatus
(AREA)
Aeration Devices For Treatment Of Activated Polluted Sludge
(AREA)
Abstract
A method and apparatus are disclosed which provide enhanced solids-contacting vessel performance with a means for withdrawing effluent from the vessel from a variety of locations depending upon the flow characteristics of the liquid in the vessel. The apparatus may include a radial weir trough that can be moved vertically within the vessel.
CA 22476411997-12-081998-09-17Radial trough for withdrawing effluent from a solids-contacting vessel
Expired - Fee RelatedCA2247641C
(en)