RESULTS: the pore size and materials of membrane affected the total filtration resistance and its distribution in clarification.
结果：膜孔径和膜材料对过滤阻力及其分布有影响。
By depth filtration of suspended material in effluent after treatment using contact filtration process, the total Zn and Cd concentration in the effluent discharge can be dropped to 1.
通过接触过滤技术在冶金化工污水处理工艺中的应用，对处理后浓密废水所含悬浮物进行深度过滤，使处理后排放废水中的总锌、总镉浓度分别降到1。
The total filter efficacy is raised by developing and applying the new technic of double -velocity filtration in one and the same filter.
其特点是采用了板式层和管式层，首先开发和应用了在同一座滤池中以双级滤速过滤的新技术，使滤池的整体过滤效能获得提高。
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