The students will gain a basic understanding of the role of water treatment facilities. Students will learn about the importance of eliminating biological activity in drinking water. Students will learn about chlorination as a means of disinfecting water. Students will learn about the concept of dechlorinating water and one of the ways this can be done.
Students will expand their understanding of chlorine demand by participating in an experiment. Students will learn about the Guidelines for Canadian Drinking Water Quality guideline for total chlorine. Students will learn how to perform calculations involving concentration, volume and dilution factors.
Students will learn more about chemical reactions involved in the water treatment process by participating in an experiment examining these reactions. Students will collect and analyze experimental data on chemical reactions. Students will be able to demonstrate calculations involving concentrations, volumes and dilution factors.
Students will expand their knowledge of the problems caused by ammonia in drinking water sources. Students will investigate the quality of their local water and that of a number of samples from the surrounding area. Students will act to help any communities which are found to have improperly disinfected drinking water.
The students will learn about the problems associated with iron in drinking water. Students will learn about the chemical states of iron. Students will learn about removing iron from water using biological treatment processes. Students will gain an appreciation for the use of natural processes to perform tasks that would otherwise require chemicals.