硅藻土过滤除铁研究

根据以硅藻土过滤（以下简称ＤＥＦ）方法去除水中铁质的实验研究，重点分析了在不同预涂剂、附加剂和起始滤速下，铁的去除效果和过滤水头损失及滤速的变化，并对ＤＥＦ除铁机理作了初步探讨，结果表明，ＤＥＦ技术是一种有效的除铁方法，实验所用硅藻土由宁波染化厂生产。

Study on Diatomaceous Earth Filtration (DEF) for Removal of Iron in Water

Based on the experimental studies of DEF for removal of iron in water,this paper analyzes mainly the removal efficieney of iron and variations of head loss through filter cake and filtering rate under different kinds of prccoat diatomaceous earth, body feeds and initial filtering rates. In this paper, the mechanism of DEF for removal of iron in water is also discussed. The results indicate that DEF is an effective iron removal method. The diatomaceous earth filter aids used for the experiments are produced in Ning Bo, China.