Clarification basin membrane

US7080828B2 · kind B2 · utility

Assignee

• Phoenix, LLC · DE

Inventors

• Ernst-August Meier · Bad Salzdetfurth, DE
• Giancarlo Gomez-Kerber · Harst, DE
• Janusz Muchorowski · Hamburg, DE
• Karl-Heinz Krause · Chemnitz, DE
• Gerhard Merkmann · Gotha, DE

Key dates

• Filing date: Dec 14, 2002
• Grant date: Jul 25, 2006
• Expiry date: Dec 14, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S261/70
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A clarification basin membrane made of a polymeric, in particular, elastomeric material, which is rendered gas-permeable by a perforation, whereby a permanent gas permeability is effected by mixing a wast water biologically active inhibitor with the polymeric material.