Title:
【発明の名称】帯電した化合物を含む水性媒体の処理
Document Type and Number:
Japanese Patent JP2003515450
Kind Code:
A
Abstract:
This invention provides a method of reducing the concentration of at least one electrically charged compound present in aqueous feedstock ( 5 ), such as water and waste water. The feedstock to be treated is continuously supplied to one surface of a selectively permeable, electrically charged membrane ( 2 ) contained within a module ( 1 ). Simultaneously an aqueous reaction medium, containing an active microbial culture, contacts with the opposite face of the membrane ( 2 ). The microbial culture, fed with selected nutrients and salts, is capable to convert at least one electrically charged compound, after it permeates through the wall of the membrane ( 2 ) to by-products. The membrane is substantially impermeable to electrically uncharged compounds. The ion-exchange properties of the membrane allow avoiding secondary pollution of the treated water by metabolic by-products and residual nutrients from the reaction medium. The membrane separates physically the polluted water stream ( 5 ) from the reaction medium, which assures that the treated water ( 6 ) does never directly contact with the microbial culture.
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Inventors:
Gourao Crespo, Joao Ps
Miranda Reis, Maria Dassensao Se F
Miranda Reis, Maria Dassensao Se F
Application Number:
JP2001541816A
Publication Date:
May 07, 2003
Filing Date:
December 04, 2000
Export Citation:
Assignee:
Institute de Viologia Esperimental y Technoka (Abeite)
International Classes:
B01D61/24; C02F1/44; C02F3/00; C02F3/10; (IPC1-7): C02F1/44; B01D61/24
Domestic Patent References:
| JPH02268899A | 1990-11-02 |
Attorney, Agent or Firm:
Soga Doteru (6 people outside)