Lesson 6: Environmental Engineering
Environmental engineers solve some of the world's most important problems: clean water, clean air, renewable energy, and waste reduction. Technology and engineering are our most powerful tools for protecting the planet.
Key Concepts
Water Treatment
Clean water does not just happen — it is engineered. Water treatment plants filter out particles, remove bacteria with chlorine or UV light, and test water quality continuously. Engineering makes safe drinking water possible for billions of people.
Renewable Energy
Solar panels convert sunlight to electricity. Wind turbines convert wind to electricity. Both are now cheaper than coal per unit of energy produced. Engineers are designing better batteries to store this energy for when the sun is not shining and the wind is not blowing.
Reduce, Reuse, Recycle — Engineering Solutions
Landfills produce methane (a powerful greenhouse gas). Engineers design systems to capture that methane for energy. They design better recycling systems, biodegradable materials, and circular economy products where everything is designed to be reused.
🆕 Renewable Energy Simulator
Balance solar and wind power output against city demand!
✅ Check Your Understanding
1. What do water treatment plants do?
2. Which energy source is now cheaper than coal per unit of energy?
3. What problem do engineers solve with methane from landfills?