ERIC Number: EJ1175934
Record Type: Journal
Publication Date: 2018-Apr
Abstractor: As Provided
Quantifying Sucralose in a Water-Treatment Wetlands: Service-Learning in the Analytical Chemistry Laboratory
Heider, Emily C.; Valenti, Domenic; Long, Ruth L.; Garbou, Amel; Rex, Matthew; Harper, James K.
Journal of Chemical Education, v95 n4 p535-542 Apr 2018
Service-learning (SL) is an active learning approach that connects the knowledge a student acquires in the classroom to an application that benefits the community. Increasingly popular in the chemistry curriculum, service-learning is reported to provide student benefits including improved cognitive goals; increased academic, interpersonal, and leadership skills; increased ability to apply course concepts to real-world situations; and increased community engagement. For the work reported here, an analytical chemistry laboratory was modified to include a service-learning component with the goal of allowing students to apply their newly acquired analytical skills to relevant, real-world samples; to learn new analytical techniques; and to develop professional communication skills. Students implemented a study of the wastewater effluent at the Orlando Easterly Wetlands, an engineered water polishing facility that removes nutrients from treated wastewater. Students designed a sampling strategy, collected samples in the field, and performed standard analysis on the water, including pH, chloride, total dissolved solids, and phosphorus. Students also tested the water for the artificial sweetener, sucralose, and characterized the concentration throughout the flow path of the wetlands. Sucralose has been proposed as an indicator of contamination of natural waters by anthropogenic waste. This type of analysis has not been performed for this public utility until now, and the students shared the results in a public seminar. Student learning outcomes were compared to those in a conventional section, with SL students showing comparable subject mastery and improved self-efficacy.
Descriptors: Chemistry, Laboratory Experiments, Service Learning, Natural Resources, Water, Water Quality, Active Learning, Problem Based Learning, Undergraduate Students, Pretests Posttests, Teaching Methods, Scientific Concepts, Scientific Methodology, Scientific Principles
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: firstname.lastname@example.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Sponsor: National Science Foundation (NSF)
Authoring Institution: N/A
Identifiers - Location: Florida (Orlando)
Grant or Contract Numbers: CHE1455159