A Miniature Wastewater Cleaning Plant to Demonstrate Primary Treatment in the Classroom

Autor/inn/en	Ne´el, Bastien; Cardoso, Catia; Perret, Didier; Bakker, Eric
Titel	A Miniature Wastewater Cleaning Plant to Demonstrate Primary Treatment in the Classroom
Quelle	In: Journal of Chemical Education, 92 (2015) 11, S.1889-1891 (3 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/acs.jchemed.5b00291
Schlagwörter	Water Quality; Chemistry; Science Instruction; Wastes; Secondary School Science; Science Experiments; High School Students; Sanitation; Demonstrations (Educational) + Suchen Sie Ihr Suchwort? Wasserqualität; Chemie; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Gargabe; Abfall; High school; High schools; Student; Students; Oberschule; Schüler; Schülerin; Studentin; Betriebshygiene; Demonstrationsexperiment; Demonstrationsmodell; Demonstrationsunterricht
Abstract	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) chloride and a cationic polyelectrolyte and lasted less than 10 s for 7 L of wastewater. This experiment is primarily targeted toward high school students to give a real world demonstration of solution and colloid chemistry, but is also useful for a more general audience. The demonstration has already been successfully presented to 700 visitors. (As Provided).
Anmerkungen	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: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01