粉状イオン交換樹脂を濾過助材とするプリコ-ト式濾過器のプリコ-ト性の検討
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概要
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The characteristics of precoating for a precoat filter using powdered ion exchange resin as filter aid were investigated with 1.5 meters long filter elements.<BR>The characteristics of precoating (thickness and distribution of precoat layer) were evaluated at various operating conditions.<BR>The results showed that the factors controlling them were size of resin flock and ascending velocity of water in the filter vessel.<BR>The size of resin flock was affected by reflocculation of resin flock, and operating conditions causing reflocculation were investigated.<BR>Consequently, it seemed that reflocculation depended on the maximum value of resin concentration in the filter vessel.<BR>In addition, a relation between sedimentation rate of resin flock and ascending velocity in the filter vessel was noticed by simulation of distribution of ascending velocity and effects on characteristics of precoating were evaluated.
- 公益社団法人 化学工学会の論文