| 主权项 |
1. A system for cleaning and sterilizing a water flow, comprising:
a main treatment line, comprising an inlet with a pump to pump water from a water storage, through a main filter to a sterilizing station with one or more UV lamps to sterilize the water flow, and a system outlet, wherein the main filter is provided with a first filter element and a backflush member with a first backflush outlet to rinse the first filter element with backflush water, and a secondary treatment line, comprising an inlet being in fluid communication to the first backflush outlet, a backflush filter with a backflush filter element that has filter openings with a largest dimension between 50 micrometer and 20 micrometer to remove floating organisms or silt from the backflush water, and a secondary outlet being in fluid communication with the main treatment line, to lead filtered backflush water from the secondary treatment line to the main treatment line, wherein the backflush filter is designed such that a backflush pressure difference over the backflush filter element is less than 0.05 bar (5 kPa), and wherein the main filter is designed such that the pressure difference over the first filter element is at least 0.1 bar (10 kPa) or 0.2 bar (20 kPa). |
