In this video, we present a carbon purification working model that demonstrates how industrial air pollution — especially smoke with carbon and harmful particles — can be filtered and cleaned before being released into the environment. This hands-on project is perfect for school or college science exhibitions, science fairs, and classroom demonstrations.
Air pollution from factories is one of the major environmental challenges of our time. Burnt fuel, machine emissions, and smoke from chimneys release harmful gases like carbon monoxide, particulate matter, volatile organic compounds (VOCs), and carbon dioxide into the atmosphere. These pollutants affect human health, cause respiratory problems, contribute to climate change, and damage ecosystems. A key solution is to filter and purify exhaust gases using effective purification methods.
In this working model, we simulate a factory chimney and carbon purification chamber using simple materials like cardboard, transparent pipes, cotton or sponge filters, and a small fan to illustrate how air flows through the system. The main principle behind the model is carbon adsorption — activated carbon or carbon-like materials have a large surface area with tiny pores that trap pollutant particles and gases as air moves through them. This is very similar to how full-scale industrial filters and scrubbers capture toxins and prevent them from entering the atmosphere.
What This Model Shows:
- A simulated factory chimney where “polluted air” (smoke or incense stick smoke) enters.
- An air intake and purification chamber containing activated carbon, cotton, or graphite rods that adsorb pollutants.
- A fan system to draw polluted air through the filter, demonstrating how industrial systems use airflow to move gases through purification units.
- A clean-air outlet where filtered air exits with reduced pollutants.
📦 Materials Used (Easily Available):
- Cardboard box or acrylic sheet box (main structure)
- Transparent tube or straw (chimney)
- Cotton, sponge, or activated carbon filter material
- Small DC fan (12 V) or mini motor with fan blades
- Wires, switch, and battery / power supply
- LED indicator (optional)
- Smoke source (incense stick/charcoal) for demonstration
- Paints and markers for decoration
🚀 How It Works:
- We build a cardboard structure resembling a factory and chimney.
- At the base, we place a small fan to draw in the polluted air through the chimney.
- Inside the purification chamber, we fix carbon material (or cotton soaked with charcoal dust) that acts as the adsorbent.
- When smoke enters the chamber, the carbon traps pollutants and particles.
- Cleaner air, with fewer particles, exits through the outlet chimney.
💡 Learning Outcomes:
This model helps students understand real-world concepts such as air filtration, adsorption by carbon materials, industrial pollution control, and environmental engineering principles. It also shows how science and engineering can be used to design simple yet effective systems for reducing pollution and making our environment safer.