两种实验废液在开放实验教学中综合利用的探索  

Exploration of Experimental Waste Liquid Comprehensive Utilization in the Open Experiment Teaching

作　　者：孟春霞[1] 毛丽莉[1] 高先池[1] MENG Chunxia;MAO Lili;GAO Xianchi(College of Chemistry and Chemical Engineering, Ocean Lniversitv of China, Qingdao 266071 , China)

机构地区：[1]中国海洋大学化学化工学院,山东青岛266071

出　　处：《实验科学与技术》2017年第6期159-162,共4页Experiment Science and Technology

基　　金：中央高校实验室研究基金(841551008)

摘　　要：实验废弃液的回收再利用,既能减少环境污染,又能节约实验教学经费。该文结合实验室现有条件,根据学生实验产生的含铬废液、含碘废液的特点,将其回收利用设计为本科生开放实验。详细分析了利用含铬废液制备重铬酸钾、利用含碘废液制备碘化钾的实验原理和实验步骤,总结了上述两种废液回收利用开放实验的实施、组织与考核,以及开放实验教学过程中应注意的问题。该开放实验的实施,有助于提高学生的动手能力以及运用所学分析方法解决实际问题的能力。The recycling of the waste liquid of the experiment can reduce the environmental pollution and save the funds of the ex-periment teaching. Based on the existing conditions of the laboratory, this paper designed two opening experiments for undergraduates according to the chromium and iodine containing wastewater produced in the experiments. It analyzed the preparation of potassium di-chromate by chromium containing wastewater, the experimental principle and procedure for preparing iodine with iodine containing waste in details. It summarized the implementation, organization and evaluation of the two kinds of waste liquid recycling experiments, as well as the problems that should be paid attention to in the course of opening experiment teaching. Generally speaking, these open experiments are helpful to improve students’ practical ability and the ability to solve practical problems by using the analytical method.

关 键 词：含铬废液 含碘废液 开放实验 综合利用 

分 类 号：G642.423[文化科学—高等教育学] O611[文化科学—教育学]