Anaerobic reactor for wastewater treatment
AssigneeNational University of Ireland, Galway
InventorsVincent O'Flaherty, Dermot Hughes
Life of this patent
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Abstract
The present invention relates to an anaerobic reactor (10) for the treatment of industrial and other wastewaters at psychrophilic temperatures, the reactor comprising a mixing chamber (12) in which is located, during use, a granular sludge fluidized bed, the reactor further comprising a biofilm chamber (16) fed from the mixing chamber and housing a biofilm colonized pumice-based carrier material, and a separation chamber (18) in fluid communication with the biofilm chamber and in which treated effluent and biogas produced within the reactor are separated.
Claims23
An exclusively anaerobic single reactor for treating liquid effluent at psychrophilic temperatures, the reactor comprising an on releasing biofilm carrier material selected from the group consisting of hydroxyl, aluminium, manganese, sodium, potassium, calcium, iron and magnesium and colonized by an anaerobic bacteria for the biological attenuation of phosphate from the effluent through the formation of polyphosphate.
A method of exclusively anaerobic treatment of a liquid effluent at psychrophilic temperatures with a single reactor, the method comprising the step of introducing ions selected from the group consisting of hydroxyl, aluminium, manganese, sodium, potassium, calcium, iron and magnesium into the effluent to effect biologic attenuation of phosphate from the effluent through the formation of polyphosphate.
An exclusively anaerobic single reactor for treating liquid effluent at psychrophilic temperatures, the reactor comprising an ion releasing biofilm carrier material selected from the group consisting of hydroxyl, aluminium, manganese, sodium, potassium, calcium, iron and magnesium and colonized by an anaerobic bacteria for the biological attenuation of phosphate from the effluent through the formation of polyphosphate;
- the single reactor comprising four chambers comprising a mixing chamber;
- a biofilm chamber in fluid communication with the mixing chamber within which the biofilm carrier material is located;
- a separation chamber in fluid communication with the biofilm chamber;
- a recirculation chamber disposed between the mixing chamber and the biofilm chamber;
- and at least one recirculation line permitting the recirculation of effluent acid/or biogas from the separation chamber to the recirculation chamber.
Dependencies are inferred from the claim text.