Patent · US Expired

Fluid clarifying assembly

US4710290A · kind A · utility

29Cited by
9References
26Claims
0Family size

Assignees

Inventor

Key dates

Filing dateAug 22, 1985
Grant dateDec 1, 1987
Priority date
Expiry dateAug 22, 2005

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01F27/112
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Chemicals are added to a fluid such as sewage to flocculate and precipitate solids therefrom which are deflected downwardly and sink by gravity to the base of an elongated chamber so that the substantially clarified fluid flows over a weir at one end of the chamber with the flocculated and precipitated material forming a sludge in the base thereof whereafter it may be removed either through a fluid lock device or pressurizing the system to stratify the flow and provide still areas for the sludge to settle through the fluid and be removed as required.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.