| 摘要 |
<p>Provided is a method for operating a water treatment system using a tubular membrane. The disclosed method for operating a water treatment system using a tubular membrane may comprise: a first step of setting and inputting values for the operating speed, the filtering flow rate, the rate of opening and closing a linear velocity control valve, the duration for which the rate of opening and closing the linear velocity control valve is maintained, the lowest linear velocity, and the duration for which the lowest linear velocity is maintained, and then operating the system; a second step of comparing a measured operating linear velocity to a value set in the first step so as to control the RPM of a hydraulic pump and comparing the measured filtering flow rate to a value set in the first step so as to control the rate of opening and closing the linear velocity control valve; a third step of measuring the rate of opening and closing the linear velocity control valve, the duration for which the rate of opening and closing the linear velocity control valve, and the filtering flow rate so as to compare the measurements to values set in the first step; a fourth step of comparing the measured filtering flow rate to a value set in the first step so as to control the RPM of the hydraulic valve; and a fifth step of returning to the second step when the measured operating speed is lower than the lowest linear velocity value set in the first step and greater than the duration for which the lowest linear velocity is maintained, which is set in the first step.</p> |
