结果表明－纤维球滤料除铁滤速高，反冲洗耗水量小且耐磨损；石英砂滤料综合性能次之；锰砂虽然除铁效果较好，但反冲洗耗水量大。

• The results showed: fiber ball has the highest efficiency among the three, its water-consumption is small in backwash and it is more wear-resisting; the comprehensive property of quartz grain filter material is poorer; manganese grain has an effective removal of Fe(superscript 2+) and Mn(superscript 2+) but water-consnmption is big.