| 摘要 |
<p>PURPOSE: A filtration system and a method thereof are provided to accomplish a high recovery rate of 96% or more with one filtration process using a water tank, and to effectively wash a filtration membrane while minimizing loss of the filtration process. CONSTITUTION: A filtration system includes a water tank(100) with an outlet(102) discharging the processed water and an inlet(101) receiving feed water to be processed and a plurality of filtration membrane cassettes(112) including a first filtration membrane cassette nearly located on the inlet and a second membrane cassette most closely located on the outlet. The filtration membrane cassette processes feed water including impurities of first concentration. The second filtration membrane cassette processes the raw water including impurities of second concentration.</p> |
