Wastewater treatment

Ages

Introduction

Summary

This animation illustrates the main stages of the wastewater treatment process.
The treatment of wastewater is essential before the water is returned to nature. With more than 15,000  treatment plants, France collects and treats 70% of its wastewater.

The treatment cycle combines mechanical procedures (screening, clarification…) and physiochemical ones (biological treatment).  The net output of unpolluted water from these plants is estimated to be, on average, 75%.

Goals

• To illustrate the wastewater treatment process.
• To distinguish between mechanical and biological processes.

Features

Click and drag the to focus a specific stage.

Student sheet

You have to subscribe to access the student sheet!

Tags

wastewater treatment sewage water-cycle pollution Removal-of-pollution ecology sedimentation clarifier