A low-cost and easy-to-use water recirculation system for a condenser apparatus was designed and installed in an organic chemistry teaching laboratory. Relying on gravity and a small pump for water circulation, it supplies four stations simultaneously. The water recirculation system works very well with condensers used for distillation and reflux reactions, as well as with rotary evaporators. This innovative idea has led to an annual water savings of more than 14 400 L while running only 2 lab periods per week with up to 24 students per period. Its low cost and easy installation make it convenient and easily adoptable by any laboratory where the waste of water from condensers needs to be addressed, especially in places where water scarcity is already hindering such significant scientific activities.

中文翻译：

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使用低成本再循环系统的冷凝器设备减少有机化学实验室中的废水

设计了一种用于冷凝器设备的低成本，易于使用的水循环系统，并将其安装在有机化学教学实验室中。依靠重力和小型水循环泵，可同时为四个站供水。该水再循环系统与用于蒸馏和回流反应的冷凝器以及旋转蒸发器配合得很好。这一创新理念每年可节水14400升以上，而每周仅运行2个实验时段，每个周期最多可容纳24名学生。它的低成本和易于安装的特性使得它可以方便并容易地用于需要解决冷凝器废水浪费的任何实验室，尤其是在水资源短缺已经阻碍了此类重要科学活动的地方。