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Schoeddert, Alex; Babooram, Keshwaree; Pelletier, Sarah – Journal of Chemical Education, 2019
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…
Descriptors: Organic Chemistry, Water, Sanitation, Science Laboratories
Arrebola, José Carlos; Rodríguez-Fernández, Nuria; Caballero, Álvaro – Journal of Chemical Education, 2020
Safe and high-quality water is essential from both the health and environmental perspectives. Water quality is so important that the United Nations has included water in the 17 Sustainable Development Goals of the 2030 Agenda for Sustainable Development. Thus, the adequate control and treatment of water are necessities. These tasks must be…
Descriptors: Water Pollution, Water Quality, Sanitation, Sustainable Development
Xiong, Qing; Luo, Mingliang; Bao, Xiaoming; Deng, Yurong; Qin, Song; Pu, Xuemei – Journal of Chemical Education, 2018
This experiment is dedicated to second-year and above undergraduates who are in their experimental session of the analytical chemistry course. Grouped students are required to use a TiO[subscript 2] photocatalytic oxidation process to treat the methanol-containing wastewater that resulted from their previous HPLC experiments. Students learn to…
Descriptors: Chemistry, College Science, Science Instruction, Science Experiments
Ne´el, Bastien; Cardoso, Catia; Perret, Didier; Bakker, Eric – Journal of Chemical Education, 2015
A small-scale wastewater cleaning plant is described that includes the key physical pretreatment steps followed by the chemical treatment of mud by flocculation. Water, clay particles, and riverside deposits mimicked odorless wastewater. After a demonstration of the optimization step, the flocculation process was carried out with iron(III)…
Descriptors: Water Quality, Chemistry, Science Instruction, Wastes