Introduction:
In this project, we will create a simple working model to demonstrate a four-step wastewater purification process using basic materials such as cardboard, paper cups, pipes, gravels, sand, and cotton. The model will showcase the steps of physical filtration and basic water treatment.
![](https://howtofunda.com/wp-content/uploads/2023/08/waste-water-management-working-model-water-purification-working-model-science-project-exhibition-diy-1024x576.png)
Materials Needed:
- Cardboard or foam board (for the base)
- Paper cups
- Plastic pipes or straws
- Gravel
- Sand
- Cotton or filter paper
- Water (to simulate wastewater)
- Food coloring (optional, for visibility)
Step-by-Step Explanation:
- Preparing the Base:
- Cut a piece of cardboard or foam board to create the base of the model.
- Creating Filtration Steps:Step 1: Coarse Filtration (Gravel)
- Place a paper cup with the bottom cut off onto the base. This will serve as the container for the gravel.
- Fill the cup with a layer of gravel. This step simulates the removal of large debris and particles.
- Place another paper cup on the base, adjacent to the first one.
- Fill this cup with a layer of sand. The sand will filter out smaller particles and impurities.
- Position a paper cup next to the sand-filled cup.
- Place a piece of cotton or filter paper at the bottom of this cup. This step further refines the filtration process.
- Place another paper cup beside the fine filtration cup to collect the purified water.
- Simulating Water Flow:
- Create a flow of water by pouring water (simulating wastewater) into the gravel-filled cup. Allow the water to pass through each filtration stage.
- As the water flows through the gravel, sand, and cotton, it will become progressively cleaner.
- Demonstrating Purified Water:
- Observe the water collected in the last cup. It should appear clearer and cleaner, demonstrating the effectiveness of the filtration process.
Understanding the Process:
This model demonstrates a simplified version of water purification commonly found in basic water treatment systems. The filtration stages remove larger and smaller particles, as well as some impurities, resulting in cleaner water.
Conclusion:
By creating the waste water purification working model, you’ve illustrated a basic process of physical filtration used in water treatment. This project showcases the importance of treating wastewater before it is released into the environment.