| 摘要 |
<p>The installation for civil or industrial wastewater treatment, comprises a water filtration unit present in upstream of a vertical biological reactor, a biomass product flotation reservoir present in downstream of the reactor, and sedimentation and chlorination units. The reactor is in a tubular form surmounted by a homogenization reservoir receiving the treated water and provided with an agitation device for homogenizing the treated mass thus dividing it into two parts. The installation for civil or industrial wastewater treatment, comprises a water filtration unit present in upstream of a vertical biological reactor, a biomass product flotation reservoir present in downstream of the reactor, and sedimentation and chlorination units. The reactor is in a tubular form surmounted by a homogenization reservoir receiving the treated water and provided with an agitation device for homogenizing the treated mass thus dividing it into two parts. A part corresponding to upper third of the height of the reactor is delimited by a whole plastic material tubes disposed axially about the reactor axis. A part extends on the lower two third of the height of the reactor. The two parts are provided with air diffusers under pressure. A conduit is located at the interior of the reactor to allow the repression towards the top of the treated mass. Valves and conduits bring the treated mass towards the flotation reservoir. The reactor is provided with sensors in the two parts to measure the concentration of oxygen and to optimize while acting on the air supply through the diffusers. An opening means having a pre-denitrification reservoir is arranged. The homogenization reactor (7) is provided with aerator to transform ammoniated nitrogen present in the treated biomass into nitrate. The sedimentation unit transforms the nitrates into gas nitrogen. The conduit allows a residual nitrate part to return in the predenitrification reservoir, and push back a part of the biomass contained in the floatation reservoir towards the homogenization reservoir. An independent claim is included for a civil or industrial water treatment process.</p> |
