Method for thermal disposal of sewage sludge

US5190672A · kind A · utility

Assignee

• Passavant-Werke AG · DE

Inventors

• Hubert Coenen · Essen, DE
• Helmut Hubert · Wiesbaden, DE
• Friedhelm Bultmann · Katzenelnbogen, DE
• Matthias Brunner · Tauberbischofsheim, DE

Key dates

• Filing date: May 22, 1991
• Grant date: Mar 2, 1993
• Expiry date: May 22, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W10/40
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A method of thermal disposal of sewage sludge. The sludge is dried and incinerated. The flue gases from the incineration are washed. The flue gas dust resulting from the incineration and the sludge resulting from washing of the flue gases are treated together with high temperature combustion which includes melting of solids.