问题
问答题 简答题
试分析提高过滤速率的因素？
答案
参考答案：
过滤速率为dv/Adθ=△P/rμL推动力/阻力提高过滤速率的方法有：
（1）提高推动力△P，即增加液柱压力；增大悬浮液上面压力；在过滤介质下面抽真空。
（2）降低阻力，即提高温度使粘度下降；适当控制滤渣厚度；必要时可加助滤剂。
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试分析提高过滤速率的因素？
参考答案：
过滤速率为dv/Adθ=△P/rμL推动力/阻力提高过滤速率的方法有：
（1）提高推动力△P，即增加液柱压力；增大悬浮液上面压力；在过滤介质下面抽真空。
（2）降低阻力，即提高温度使粘度下降；适当控制滤渣厚度；必要时可加助滤剂。
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| Zhou Hua and Liao Lan come from China. Now they are studying in London. Yesterday moming they 1._____ at six o'clock. They 2._____ at six thirty. Then they 3._____ at seven fifteen. School started 4._____ o'clock. They 5._____at twelve. At one o'clock in theaftemoon they 6._____. They did sports 7._____ in the afternoon. They played tennis for two hours. At six thirty they 8._____. They 9._____ at seven thirty in the evening. They went to bed at ten thirty. They 10._____ very busy all day. |