HYBRID BIOLOGICAL MEMBRANE REACTOR FOR THE TREATMENT OF URBAN AND INDUSTRIAL WASTE WATER
| Application number: |  PCT/ES2003/000057 (31.01.2003)
E03734736 (31.01.2003)
| | Priority number: | ES20020000244 (01.02.2002)
| | Applicant: | UNIVERSIDADE DE SANTIAGO DE COMPOSTELA (ES)
CITT - EDIFICIO CACTUS, CAMPUS SUR, 15782 SANTIAGO DE COMPOSTELA | | Inventor/s: | GARRIDO FERNANDEZ, Juan Manuel (ES);
Mendez Pampen Ramon (ES);
OYANDELL BASEEZ, Vinka (ES);
| | IPC previous to 2006.01: | C02F3/30, C02F3/12 | | Abstract: |  The invention relates to a hybrid biological membrane reactor which is used to treat urban and industrial waste water with organic material and nitrogen and which combines micro-organisms in suspension and in a biofilm. The inventive reactor comprises three chambers: an anoxic chamber (1), an air-lift-type aerobic chamber (2) and a filtration chamber (3). The microbial sludge is in suspension in said three chambers, while a rough, granular plastic support is disposed in the aerobic chamber (2). A biofilm is grown on said plastic support with a high fraction of nitrifying micro-organisms and is kept fluidised through the application of an air current which is distributed through diffusers into the chamber. The aforementioned filtration chamber (3) comprises ultrafiltration membrane modules with hollow fibres which are used to separate the treated water from the biological sludge, by recirculating the sludge to the anoxic chamber with the purpose of maintaining a suitable microbial concentration.
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