Patent · US Expired

Sludge dewatering system and method

US6101738A · kind A · utility

3Cited by
19References
8Claims
0Family size

Inventor

Key dates

Filing dateJul 27, 1998
Grant dateAug 15, 2000
Priority date
Expiry dateJul 27, 2018

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF26B17/30
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A process and system for treating sludge are provided. Sludge is dewatered by introducing pressurized air to the sludge, while the sludge is being moved continuously. The air strips the sludge of its water, thus increasing total solids captured with respect to time. The throughput of the system is therefore also increased. In addition, the pressurized air passing through the sludge support purges contaminants from the pores of the support, thus keeping them clean without the necessity to backwash same.

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