Engineering Scaling Removal Using Citric Acid
A pipe with scaling buildup.Copyright 2020 Saltworks Technologies, Inc., (CC BY-NC-ND) https://www.saltworkstech.com/wp-content/uploads/2018/02/Scaling-found-on-the-interior-surface-of-pipes-1280x720.jpg
Students take on the role of chemical engineers to find a safe way to remove surface scalants like calcium carbonate that is both effective and safe. With teacher guidance, students learn about the chemistry involved as they work to remove scaling in a pipe using natural substances. Along with exploring designs based in chemistry, they consider the safety and environmental impacts of their solutions.
Chemical engineers use principles of chemistry, biology and physics to transform processes, energy and materials. Some processes can be performed with natural materials and resources. However, others require strong and hazardous materials. Chemical engineers take a lot of time to consider the safety and environmental impacts of their solutions.
After this activity, students should be able to:
- Describe removal techniques for calcium buildup in a pipe.
- Outline a scientific and engineering design.
- Calculate percent change.