Patent · US Expired

Method and apparatus for purification of waste water

US4265767A · kind A · utility

5Cited by

5References

8Claims

0Family size

Assignee

Bergwerksverband GmbH · DE

Inventors

Gunther Gappa · Gelsenkirchen, DE
Harald Juntgen · Essen, DE
Jurgen Klein · Essen, DE

Key dates

Filing date	Jun 11, 1979
Grant date	May 5, 1981
Priority date	—
Expiry date	Jun 11, 1999

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D15/1892
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for purification of waste water includes an upright adsorber filled with inorganic granular adsorption material flowing in downward direction through the adsorber while waste water is fed in upward direction therethrough. The adsorber has a frustoconical outlet portion in which an inlet cone, having a perforated upwardly tapering wall, is provided into which the waste water is fed to assure a substantially even distribution of the waste water in the column of granular adsorption material during the upward flow of the waste water through the adsorber.

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