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水厂用煤质颗粒活性炭的再生

发布时间:2020-07-22 14:56:59 编辑:ag真人在线

  水厂用煤质颗粒活性炭使用一段时间后,会吸附水中大量的吸附质,慢慢趋向饱和并丧失净化能力,这些煤质颗粒活性炭失去吸附能力后,需再生恢复其活性才能继续再循环使用。

  再生指的是在水厂用煤质颗粒活性炭本身的结构基本不发生变化的情况下,用某种方法将吸附质从它的微孔中除去,恢复其吸附能力的行为。再生可以节约煤质颗粒活性炭的运行费用、降低水厂的制水成本。

水厂用煤质颗粒活性炭

  使用煤质颗粒活性炭的水厂可自建再生系统,亦可将失效的煤质颗粒活性炭送往活性炭制造厂再生,自建再生系统的优点是有效避免了煤质颗粒活性炭在运输及装卸过程中的损耗,由制造厂再生的优点是水厂运行管理简便,可节省水厂用煤质颗粒活性炭再生的场地与相关设备。

  水厂用煤质颗粒活性炭的再生的过程大致分三个阶段:

  1、煤质颗粒活性炭附着水的蒸发;

  2、煤质颗粒活性炭吸附的有机物经焙烧后炭化;

  3、煤质颗粒活性炭内烧灼炭化物气化并恢复其活性。

上一篇:液相吸附用煤质活性炭的主要影响因素 下一篇: 水处理用煤质柱状活性炭的选择原则及评价指标

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