2014 年 47 巻 p. 105-110
Students are instructed reserve of the waste liquid to the waste reservoir according to the kind in the student experiments. However, they occasionally poured waste liquid into the different kind of waste reservoir. That have led to the environmental problems, safety problems and increase in processing costs. It is what the lack of knowledge of the hazardous substance in waste liquid. Therefore we tried an attempt for education of waste liquid in the student experiments.