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$2103-6750 /Piece/Pieces
Selling Units: | Piece/Pieces |
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污泥比是指单位质量的污泥在一定压力下向下游流过时,单位过滤面积所受到的正力。它代表污泥过滤特性的综合指标。可压缩滤饼恒压过滤工艺主要讨论污泥的平均比阻。其值可以通过用公式(第2章)进行恒压过滤实验并拟合相关直线来计算。污泥的平均比电阻越大,游饼阻力越大,滤饼渗透性越低,源性能越差。通常,在初始污泥中添加化学物质来对污泥进行改性。主要目的是降低污泥比阻。
过滤速率是指单位时间内通过单位过滤面积的流体体积。它是过滤操作强度的度量。影响过滤速度的主要因素有物料粘度、过滤面积、过滤压力等,料束粘度小,过滤面积小,过滤面积小。湖水压力高会导致过滤率增加。
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