WATER TREATMENT METHOD USING DEVICE FOR CONTROLLING CONCENTRATION OF FILTER AID WATER TREATMENT DEVICE AND DEVICE FOR CONTROLLING CONCENTRATION OF FILTER AID

摘要

This water treatment method is provided with a first step for: feeding a filter aid containing a magnetic material through a filter aid feed line from a filter aid storage tank for storing the filter aid onto a filter in a solid liquid separation device which includes the filter the filter having a surface that is at a level with the mounting surface and the interior space in the solid liquid separation device being divided vertically by the filter; and forming a pre coat layer comprising the filter aid. The water treatment method is also provided with: a second step for feeding water to be treated to the pre coat layer in the solid liquid separation device through a treated water feed line and causing the pre coat layer to capture and remove suspended matter in the treated water; and a third step for measuring the concentration of the filter aid by using a device for controlling the concentration of the filter aid the device for controlling the concentration of the filter aid being mounted on the filter aid storage tank.