Title:
EFFLUENT TREATMENT COMBINING SOLID/LIQUID SEPARATION AND PULSED ELECTRIC FIELDS
Document Type and Number:
WIPO Patent Application WO2004005197
Kind Code:
A3
Abstract:
The invention concerns an effluent treatment wherein a flow of said effluents is subjected to a pulsed electric field producing a physico-chemical and biological modification of the medium, used during a decantation or membrane filtration type solid/liquid separation. The solid/liquid separation (13, 14, 15) and the pulsed electric field treatment (12) are operations carried out at different points of the flow of effluents. The pulsed electric field has voltage value, current value, pulse repeat frequency and voltage front form characteristics selected, depending on the points where are performed the membrane filtration and pulsed electric field treatment, to obtain the desired treatment for the effluents.
Inventors:
SCHRIVE LUC (FR)
NOUVEL PHILIP (FR)
GRASMICK ALAIN (FR)
NOUVEL PHILIP (FR)
GRASMICK ALAIN (FR)
Application Number:
PCT/FR2003/002055
Publication Date:
April 08, 2004
Filing Date:
July 02, 2003
Export Citation:
Assignee:
COMMISSARIAT ENERGIE ATOMIQUE (FR)
SCHRIVE LUC (FR)
NOUVEL PHILIP (FR)
GRASMICK ALAIN (FR)
SCHRIVE LUC (FR)
NOUVEL PHILIP (FR)
GRASMICK ALAIN (FR)
International Classes:
B01D21/00; B01D61/04; B01D61/16; B01D65/08; C02F1/44; C02F1/46; C02F1/463; C02F3/12; (IPC1-7): C02F1/48; C02F1/463
Domestic Patent References:
| WO1997017297A1 | 1997-05-15 | |||
| WO2002004356A1 | 2002-01-17 |
Foreign References:
| US4169029A | 1979-09-25 | |||
| DE4100799A1 | 1992-07-16 | |||
| US3933606A | 1976-01-20 | |||
| DE10050489A1 | 2001-07-26 | |||
| US3192142A | 1965-06-29 | |||
| FR2784979A1 | 2000-04-28 | |||
| US20020056634A1 | 2002-05-16 | |||
| US3480529A | 1969-11-25 | |||
| DE19752371A1 | 1998-06-10 | |||
| GB2149423A | 1985-06-12 |
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