使用助滤剂的目的：防止过滤介质孔道堵塞，或降低滤饼的过滤阻力。
Use filter aid agent purpose: to prevent the filter medium passes jams, or reduce the filter cake resistance.
膜过滤阻力分布测试结果表明滤饼层阻力是主要阻力。
The results showed that cake layer resistance was the major resistance.
对过滤速率、过滤阻力、滤饼空隙率进行了研究，分析了四种物料的滤饼可压缩性及其压缩性指数。
Filtration velocity, filtration resistance and porosity of cake were researched, and the condensability and its index were analyzed.
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