Installation for biological treatment of water for drinking, comprises biological reactor housing a membrane, water routing unit, unit for adding powdery material inside reactor, unit for recuperation of treated water, and agitation unit

摘要

The installation for biological treatment of water for drinking, comprises a biological reactor (7) housing a microfiltration-, an ultrafiltration- or a nanofiltration membrane (11), a unit (1) for routing the water inside the reactor, a unit (10) for adding a powdery material in suspension inside the reactor, a unit (12) for recuperating treated water, an agitation unit and/or mechanical and/or hydraulic sealing unit close to the membrane, a unit for injecting and mixing an oxidizing gas e.g. ozone in water, and a unit for counter-currently injecting treated water in the membrane. The installation for biological treatment of water for drinking, comprises a biological reactor (7) housing a microfiltration-, an ultrafiltration- or a nanofiltration membrane (11), a unit (1) for routing the water inside the reactor, a unit (10) for adding a powdery material in suspension inside the reactor, a unit (12) for recuperation of treated water, an agitation unit and/or mechanical and/or hydraulic sealing unit disposed near the membrane, a unit for injecting and mixing an oxidizing gas such as ozone in the water, a unit for counter-currently injecting treated water in the membrane, and a flocculation and/or coagulation unit and/or a clarification unit placed in upstream of the injecting and mixing unit. The powdery material is used as a support to a biomass. The injecting and mixing unit is placed in upstream of the biological reactor, and comprises a static mixer and a contact column. The agitation unit and/or mechanical and/or hydraulic sealing unit comprise an agitator with blades, and unit for recirculation of treated water. A unit is arranged for measuring the concentration of the pollutant contained in the water. The powdery material is activated carbon powder, zeolite, ion-exchanged resin and clay. An independent claim is included for a process for the treatment of drinking water.