| 摘要 |
<p>There are provided methods for improving performance of hollow fiber filtration membranes (12). Methods comprise a unique backwashing technique wherein the hollow fiber membranes (12) are pressurized with a gas on a feed side of the membranes (12) at specified times during the backwash, accomplished by introducing a gas through filtrate port (11), top feed port (9) or bottom feed port (10). Periodic use of backwashing effectively removes fouling components from the hollow fiber membranes (12), providing stable permeability and low trans-membrane pressures, which results in an efficient and economic filtration process. In addition, there are provided methods for cleaning hollow fiber membranes (12) and increasing filtrate flow rate through membranes (12).</p> |
