| 摘要 |
<p>The wastewater treatment unit comprises a first unit for separating solids contained in the wastewater (1), an aeration basin (2), a water membrane filtration unit (3) relative to the flowing direction of water in the unit, a unit for dehydrating sludge, a unit for overpressurizing the water in the aeration basin, and a unit for transferring dehydrated sludge. The membrane filtration unit is a cylindrical basin, in which membrane filtration modules are immersed in its vertical axis. The aeration basin is arranged in ring around the membrane filtration unit. The wastewater treatment unit comprises a first unit for separating solids contained in the wastewater (1), an aeration basin (2), a water membrane filtration unit (3) relative to the flowing direction of water in the unit, a unit for dehydrating sludge, a unit for overpressurizing the water in the aeration basin, and a unit for transferring dehydrated sludge. The membrane filtration unit is a cylindrical basin, in which membrane filtration modules are immersed in its vertical axis. The aeration basin is arranged in ring around the membrane filtration unit. The first unit for separating solids, the dehydrating sludge unit and overpressurizing unit are laid in the location adjacent to the aeration basin and externally to the membrane filtration basin. Lateral unit for the diffusion of air bubbles is immersed at the bottom of the aeration basin. A unit for moving water to be treated is placed close to the inlet of the waste water in the annular aeration basin. The lateral unit and the aeration unit are arranged diametrically opposite to the aeration basin to enhance the circulation of water in the basin. A storage medium of dehydrated sludge is placed outside juxtaposing the local, where the unit for dehydrating sludge is placed. A unit is arranged for measuring treated water flow exiting from the unit. The first separating unit comprises a sieve isolated from the rest of the unit during maintenance and/or malfunctioning, by the manually actuated valves. The membrane filtration modules comprise hollow woven fiber membranes arranged vertically and traversed upwards by the water to be treated. The overpressurizing unit is directly related to lateral unit for diffusion of bubbles and additionally the membrane filtration unit. A unit is arranged for controlling and monitoring the intermittent aeration in the aeration basin. A unit is arranged on a slab juxtaposed to the aeration basin for storing a chemical reagent to eliminate the phosphorus in the treated water leaving the unit.</p> |
