Multi-Barrier Filtration (9-12)
Click the links to the right to view the online Teacher's Guide, Student Logbook, or visit WebQuest unit for this W.E.T. You can also download the Teacher's Guide and Student Logbook in either PDF or Word document format.
Multi-barrier separation describes a series of processes that work collectively to remove harmful contaminants from water. Because no single procedure or tool can eliminate all impurities present in our drinking water sources, multi-barrier techniques are used to increase the efficiency and success of available water purification methods. Multi-barrier separation processes also allows us to design purification methods that can produce water samples that will meet the specific needs of the systems for which they will be used. For example, the water used in aquariums cannot be used for tap water, and likewise, tap water is not safe for the animals living in aquariums. Therefore, the water in your fish tank is processed differently from the water coming out of your tap. With a multi-barrier approach, different processes can be excluded to give the preferred product.
In this experiment, students will use two systems (a column containing granular activated carbon and a membrane filter) to create a purified water sample.
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Teacher's Guide Word (769 KB) PDF (1.5 MB) ■ Student Logbook Word (645 KB) PDF (1.5 MB) ■ WebQuest HTML template Word template |
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National Science Education Standards Content A Content B Content C Content D Content E Content F Content G Teaching A Teaching B Teaching D Teaching E |
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Illinois Learning Standards - Science 11.A.4.a 11.A.4.b 11.A.4.c 11.A.4.f 13.A.4.c |
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