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Design of an Exploratory Experiment in Teaching for Engineering Education Accreditation: Fluoride Geochemical Simulation during Water–Rock Interactions under the Effect of Seawater Intrusion

Chen, Qiao, Wang, Xuewenyu, Yin, Huiyong, Feng, Jianguo·2023·Sustainability
DOI 10.3390/su151712910
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Abstract

Engineering education is critical for the creation of a more sustainable world, and engineering education accreditation has become the current trend for reform in higher education worldwide. Traditional replication experiment-based teaching cannot meet the standards of engineering education accreditation, and integrating the ideas of engineering education accreditation into experimental teaching is an important aspect of practical teaching. Taking fluoride evolution simulation during water–rock interactions under the effect of seawater intrusion as an example, an exploratory experiment was designed with the idea of engineering education accreditation. The experiment concluded that leached fluoride increases with increasing ratios of seawater and brine water, NaCl levels, and NaHCO3 levels, but with decreasing CaCl2 levels, which confirms that seawater intrusion deeply affects fluoride evolution. The saturation index and Fourier Transform Infrared analyses indicate that Ca2+ restriction and exchange of F with O–H and Si–O–Si are responsible for fluoride leaching. The experiment was characterized by deeper theory, logicality, and openness, and was also multi-schematic and exploratory. Therefore, it is an ideal subject matter to develop an exploratory experiment. A reasonable teaching link was designed to integrate the ideas of engineering education accreditation. Students were required to creatively and personally devise an experimental design and an expansion to the experiment based on the given databases and other relevant literature and to cooperate and discuss in groups. The experiment not only integrates basic knowledge of water–rock interactions, but also cultivates the awareness of and ability to analyze and solve problems, innovative thinking, scientific literacy, and teamwork. Meanwhile, the experiment effectively supports the graduate requirements of various subjects, including Design/Development Solutions, Research, Applying Modern Tools, Individual and Teams, and Communication.

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Cited by

Sorted by citations

Authors
Chen, Q., Wang, X., Yin, H., & Feng, J.
Affiliations
College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
ORCID
Chen, Qiao
Venue
Sustainability
Publisher
MDPI AG
Published
2023-08-26
Volume
15
Issue
17
Pages
12910
ISSN
2071-1050
DOI
10.3390/su151712910
Cited by
6
References
0
Language
en
Licence
creativecommons.org/licenses/by/4.0/ (vor)
Funders
  • National Natural Science Foundation of China (40901027, 220602645073841, Z2021304, QX2022ZD03, Yzlts2022030)
  • University–Industry Collaborative Education Program from the Ministry of Education of China (40901027, 220602645073841, Z2021304, QX2022ZD03, Yzlts2022030)
  • Key Projects for Undergraduate Teaching Reform Research from Shandong Provincial Department of Education (40901027, 220602645073841, Z2021304, QX2022ZD03, Yzlts2022030)
  • “Group Star Program” Key Projects for 2022 Teaching Research from Shandong University of Science and Technology (40901027, 220602645073841, Z2021304, QX2022ZD03, Yzlts2022030)
  • 2022 Quality Improvement Projects for Graduate Education from Shandong University of Science and Technology (40901027, 220602645073841, Z2021304, QX2022ZD03, Yzlts2022030)

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