Method and apparatus for recovering water from a sewer main

US5910249A · kind A · utility

Assignee

• CRC for Waste Management and Pollution Control, Limited · AU

Inventors

• Clinton V. Kopp · Bismarck, US
• Warren Johnson · Richmond, AU
• Anthony James Day · Drammen, NO
• Antony MacCormick · Chatswood, AU
• Tomasz Markiewicz · Parramatta, AU
• Gary William Stollery · Melbourne, AU
• Mark Arthur THOMPSON · Sydney, AU
• Brett Alexander · Sydney, AU
• Neil Wende · Perth, AU

Key dates

• Filing date: Sep 9, 1996
• Grant date: Jun 8, 1999
• Expiry date: Sep 9, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W10/10
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process and apparaus for recovery water from raw sewage extracted directly from the sewer including a screen(2) operable to obtain from raw sewage a screened effluent having a maximum particle size of no more than 900 microns. The apparatus also comprises a first membrane separator(5) which is operable to filter the suspended solids from some or all of the screened effluent. The process also includes a second membrane separator preferably in the form of reverse osmosis filter(8).