纤维长度和曝气量对渗透通量下降的影响， 介绍了恒压浸入式中空纤维。在没有曝气的情况下，初始速率 在相对较低的温度下，较长纤维长度（1比0.7比0.3米）的通量下降幅度更大 膨润土颗粒的进料浓度（100 mg/L）。然而，同样的伪稳态 随着污垢的发展，观察到所有三种纤维长度的渗透通量状态。这个 通过对所有三种纤维长度进行曝气，污垢速率大大降低。然而，影响 随着纤维长度变短，纤维直径变大。 得出的结论是，曝气并非如此 有效去除纤维出口附近形成的污垢层，局部通量为 最长的纤维长度最高。渗透通量下降（无曝气）结束 通过使用小型平板试验中的特定滤饼阻力进行预测 中空纤维模型。这种解释可能涉及轴向压力梯度的影响 降低可压缩滤饼的局部比滤饼阻力。小规模的测试不能 解释这种轴向依赖。包括8个参考文献、图表。

The effects of fiber length and aeration rate on permeate flux decline in tests of a single, submerged hollow fiber at constant pressure are presented. Without aeration, the initial rate of flux decline was greater for a longer fiber length (1 vs. 0.7 vs. 0.3 m) at a relatively low feed concentration of bentonite particles (100 mg/L). However, the same pseudo-steady state in permeate flux was observed for all three fiber lengths as fouling progressed. The fouling rate was greatly reduced by aeration for all three fiber lengths. However, the effect was larger as fiber length became shorter. It was concluded that aeration was not as effective for removal of the fouling layer formed near the fiber outlet where the local flux is highest for the longest fiber length. Permeate flux decline (without aeration) was over predicted by using the specific cake resistance from a small-scale, flat sheet test in a hollow-fiber model. The explanation may involve the effect of axial gradient of pressure drop on local specific cake resistance for compressible cakes. Small-scale tests cannot account for this axial dependency. Includes 8 references, figures.