This filtration process was proved to be stable and economical in nearly two years operation.The optimal operation conditions of quartz sand filtration and its backwash were studied.

• 实验证明了陶瓷膜过滤食醋时前置石英砂预处理工序具有重要的经济价值，同时确定出石英砂过滤和反冲洗的最佳工艺条件。