Patent · US Expired

Module for a reactor for anaerobic waste water treatment

US5338445A · kind A · utility

15Cited by

7References

9Claims

0Family size

Assignee

Passavant-Werke AG · DE

Inventors

Michael Zumbragel · Katzenelnbogen, DE
Volker Bach · Neustadt, DE

Key dates

Filing date	Jan 21, 1993
Grant date	Aug 16, 1994
Priority date	—
Expiry date	Jan 21, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W10/10
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A module for a UASB (upflow anaerobic sludge blanket) reactor for anaerobic waste water treatment comprises an overflow threshold for the treated waste water that determines the water level in the module. Several immersed collection domes are provided for the digester gas which are staggered over the entire module cross-section and possess a drain into a collection pipe and an upper evacuation line for the waste air collecting above the water level. All walls, covers and installation parts of the module are made of plastic, if necessary reinforced with steel profiles, and are welded to each other. Also, all drains end at a narrow side of the module where they are connected in a gas-tight manner with discharge ducts which have been installed there along several modules and which may be closed off in sections.

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