| 摘要 |
<p>A method and device are provided that are for monitoring the slime-adhesion status of a water system, make it possible to accurately ascertain continuous changes in slime-adhesion status in real time, and are not influenced by factors other than slime, such as suspended solid components in water. Water sampled from a water system (raw water) is passed through a hollow fiber membrane using a cross-flow method, and a slime-adhesion status is monitored on the basis of changes in the pressure difference between the raw water inflow side and permeated water outflow side. Using a cross-flow method to cause the water sampled from the water system being monitored to pass through the hollow fiber membrane module makes it possible to ascertain changes in the slime-adhesion status continuously and relatively quickly on the basis of pressure changes before and after the membrane caused by slime adhering to the hollow fiber membrane surface. Additionally, unlike a dead-end filtration method, it is difficult for this method to be influenced by factors other than slime, such as suspended solid components in water.</p> |
