Patent · US Expired

Continuous polymer feed system for a waste water treatment plant

US4470907A · kind A · utility

50Cited by
6References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 16, 1982
Grant dateSep 11, 1984
Priority date
Expiry dateJul 16, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC02F1/5227
  • WIPO fieldEnvironmental technology
  • WIPO sectorChemistry

Abstract

A continuous polyelectrolyte feed system is disclosed. The system comprises means for providing a metered stream of dilution water, means for adding metered quantity of polyelectrolyte to the dilution water stream, means for flash mixing the polyelectrolyte in the dilution water stream, a plug flow reactor for aging the polyelectrolyte solution so as to allow the polyelectrolyte sufficient time to become active, and means for flash diluting the polyelectrolyte before injection into the waste water.

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