Patent · US Expired

Sludge dewatering apparatus

US4115275A · kind A · utility

8Cited by
5References
37Claims
0Family size

Inventor

Key dates

Filing dateApr 14, 1977
Grant dateSep 19, 1978
Priority date
Expiry dateApr 14, 1997

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S210/03
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Apparatus for dewatering sludge comprising a primary dewatering section in which the sludge is supported on a filter means sloped downwardly towards the center, and a secondary dewatering section which follows the primary dewatering section and through which the sludge is carried on a non-filtering support which is sloped downwardly towards the side, and means for applying pressure onto the top side of the sludge layer during passage through the primary and secondary dewatering sections.

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