Title:
WASTE MANAGEMENT
Document Type and Number:
WIPO Patent Application WO/2010/058187
Kind Code:
A3
Abstract:
A self-contained system for treating and recycling waste water, particularly for a toilet cubicle in a railway carriage or the like. Waste water from a toilet pan (1) and wash basin (2) is treated in an aerated membrane bioreactor (6). The permeate from the bioreactor is exposed to ozone and ultraviolet light in a tank (27) from which a first stream is taken and reused for flushing the toilet. A second stream from the permeate tank is treated to a higher (potable) standard of purity by successive stages of reverse osmosis (45) and ion exchange (47) and reused for hand washing.
Inventors:
SMITH GEOFFREY CHARLES (GB)
Application Number:
PCT/GB2009/002739
Publication Date:
August 19, 2010
Filing Date:
November 23, 2009
Export Citation:
Assignee:
QINETIQ LTD (GB)
SMITH GEOFFREY CHARLES (GB)
SMITH GEOFFREY CHARLES (GB)
International Classes:
C02F1/42; B01D61/02; C02F1/44; C02F1/78; C02F3/12; C02F9/00; C02F103/00
Foreign References:
| EP1873120A1 | 2008-01-02 | |||
| US6531063B1 | 2003-03-11 | |||
| US7108782B1 | 2006-09-19 | |||
| US4871452A | 1989-10-03 | |||
| US20060169649A1 | 2006-08-03 | |||
| US5059317A | 1991-10-22 |
Other References:
L.J. KAVANAGH: "MODERN APPROACH FOR WATER RENEWAL IN SINGLE TOILET SYSTEMS USED ON TRAINS,BOATS, COACHES AND MOTOR HOMES", 2005, XP007912085, Retrieved from the Internet
Attorney, Agent or Firm:
OBEE, Robert, William (Intellectual PropertyMalvern Technology Centre,St Andrew Road, Malvern Worcestershire WR14 3PS, GB)
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