Title:
PROCESS AND APPARATUS FOR THE PURIFICATION OF CONTAMINATED WATER BY ACTIVATED OZONE
Document Type and Number:
WIPO Patent Application WO1990014312
Kind Code:
A3
Abstract:
A process is provided for the purification of water which is contaminated with environmentally undesirable components, such as halogenated hydrocarbons, wherein the contaminated water or the gaseous and/or liquid components present therein or derived therefrom are subjected to at least two of the following treatments: treatment with ozone, treatment with UV radiation, treatment with a solid catalyst. A combined treatment with ozone and a solid catalyst, such as activated carbon, is preferred. An apparatus for a cocurrent or countercurrent realisation of the purification process is also provided. The apparatus can comprise one or more purification reactors.
Inventors:
CAMPEN JAN PETER (NL)
MOSER JOHN-ANTOINE (NL)
MOSER JOHN-ANTOINE (NL)
Application Number:
PCT/NL1990/000075
Publication Date:
December 27, 1990
Filing Date:
May 23, 1990
Export Citation:
Assignee:
ECO PURIFICATION SYST (NL)
International Classes:
B01J21/08; B01J21/18; B01J38/04; B01J21/04; C02F1/28; C02F1/32; C02F1/72; C02F1/78; (IPC1-7): C02F1/78; C02F1/32; C02F1/28
Foreign References:
| DE2729760A1 | 1979-01-18 | |||
| NL296272A | ||||
| FR2291687A7 | 1976-06-11 | |||
| US3924139A | 1975-12-02 |
Other References:
Wasser Berlin '89, 10-16 April 1989, International Ozone Association, P.J. PISCAER et al.: "Use of Photozone/UV for Groundwater Treatment", pages I.4.1. - I.4.7., see page I.4.1., Abstract; page I.4.2., line 1 - page I.4.5
Rijkswaterstaat - Dienst Binnenwateren/RIZA, Report No. 88.028, August 1988, Grontmij NV De Bilt, (De Bilt, NL), "Nieuwe Grondwaterzuiveringstechnieken bij Bodemsanering", pages 69-73, see page 69, figures 6,7 - page 71, line 14
Wasser Berlin '89, 10-16 April 1989, International Ozone Association, T.K. UNDERBRINK et al.: "Removal of TCE, PCE and CTC from a Contaminated Groundwater using UV/Ozone", pages V-4-1 - V-4-10, see page V-4-1, Abstract; page V-4-2, line 1 - page V-4-5
DATABASE WPI Week 197723, Derwent World Patents Index; AN 1977-40575
PATENT ABSTRACTS OF JAPAN vol. 013, no. 293 (C - 615)<3641> 6 July 1989 (1989-07-06)
DATABASE WPI Week 198720, Derwent World Patents Index; AN 1987-140939
PATENT ABSTRACTS OF JAPAN vol. 002, no. 148 (C - 030) 9 December 1978 (1978-12-09)
Rijkswaterstaat - Dienst Binnenwateren/RIZA, Report No. 88.028, August 1988, Grontmij NV De Bilt, (De Bilt, NL), "Nieuwe Grondwaterzuiveringstechnieken bij Bodemsanering", pages 69-73, see page 69, figures 6,7 - page 71, line 14
Wasser Berlin '89, 10-16 April 1989, International Ozone Association, T.K. UNDERBRINK et al.: "Removal of TCE, PCE and CTC from a Contaminated Groundwater using UV/Ozone", pages V-4-1 - V-4-10, see page V-4-1, Abstract; page V-4-2, line 1 - page V-4-5
DATABASE WPI Week 197723, Derwent World Patents Index; AN 1977-40575
PATENT ABSTRACTS OF JAPAN vol. 013, no. 293 (C - 615)<3641> 6 July 1989 (1989-07-06)
DATABASE WPI Week 198720, Derwent World Patents Index; AN 1987-140939
PATENT ABSTRACTS OF JAPAN vol. 002, no. 148 (C - 030) 9 December 1978 (1978-12-09)
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