All About Water!
The brown water in this stream is indicative of high dissolved organic matter content.
Students learn about the differences between surface and ground water as well as the differences between streams, rivers and lakes. Then, they learn about dissolved organic matter (DOM) and the role it plays in identifying drinking water sources. Then students are introduced to conventional drinking water treatment processes by developing and implementing their own water filtration system through the associated activity. A student worksheet and answer key are provided.
Identifying safe and suitable drinking water sources is a common environmental engineering challenge. When identifying potential water sources, engineers must consider the amount of dissolved organic matter (DOM) that is present. DOM can be transformed into various dangerous chemicals when exposed to chlorine that is usually added during the water treatment process. Before water comes out of the tap, it goes through several treatment steps to make sure it is safe for human consumption. Civil, chemical and environmental engineers design these water treatment processes and facilities in cost-effective ways to meet the needs of communities.
After this lesson, students should be able to:
- Describe the differences between streams, rivers and lakes.
- Describe the differences between surface and groundwater.
- Describe the conventional drinking water treatment process.