超滤和微滤的可行性在很大程度上取决于达到的净通量。直接处理地表水通常会导致净通量低和清洗频率高。这在很大程度上取决于给水的质量以及决定膜污染和污染速率的机理。控制并最好地降低污垢的速率是一项重大挑战。为了在经济可行的净流量下实现稳定运行，已经开展了减少污垢的研究。本研究旨在通过动态过滤器，即增强型预涂层工程（EPCE），降低悬浮物和胶体物质的膜接触面积。使用不同的水源和不同的预处理条件，确定了这种新方法的普遍适用性及其对膜性能的影响- 涂层材料。预涂层最初会导致更高的污染率，但在几个过滤循环后，这种污染率会稳定下来。稳定是由反洗和强化反洗后更好地恢复渗透性引起的。从这项研究可以得出结论，EPCE是一种有希望提高膜性能的技术。长期影响、成本和全面实施需要得到证实。包括8个参考文献、表格、图表。

The feasibility of ultra and microfiltration depends strongly on the achieved net flux.Direct treatment of surface water frequently results in low net fluxes and high cleaningfrequencies. This is largely determined by the quality of the feed water and themechanisms that determine the fouling and the fouling rate of the membranes.Controlling and preferably reducing the rate of fouling is a major challenge. Researchhas been carried out to reduce fouling to achieve a stable operation at an economicalfeasible net flux. This research investigates decreasing the membrane contact area forsuspended and colloidal matter by a dynamic filter, i.e. Enhanced Pre-Coat Engineering(EPCE). The general applicability and the effects on the membrane performance of thisnew approach, have been determined using different water sources and with different pre-coat materials. Pre-coating results initially in a higher fouling rate, however this foulingrate stabilizes after several filtration cycles. The stabilization is caused by a betterrestoration of the permeability after a backwash and an enhanced backwash. From thisresearch it can be concluded that EPCE is a promising technique to increase membraneperformance. Long term effects, costs and full-scale implementation need to bedemonstrated. Includes 8 references, tables, figures.