Question

Take an earthen pot (mutka), some pebbles and sand. Design a small-scale filtration plant that you could use to clean muddy water.

Answer 1

To design a small-scale filtration plant using an earthen pot (mutka), pebbles, and sand, follow these steps:

Materials Needed:

1. An earthen pot (mutka)
2. Pebbles
3. Sand
4. A piece of cloth or cotton

Steps to Create the Filtration Plant:

1. Prepare the Pot:

   • Take the earthen pot and ensure it is clean.
   • Place a piece of cloth or cotton at the bottom of the pot. This will act as the first layer of filtration, preventing sand and pebbles from passing through.

2. Add the Sand Layer:

   • Pour a layer of sand over the cloth inside the pot. The sand acts as the main filtration medium, trapping fine particles and impurities as water passes through it.

3. Add the Pebble Layer:

   • Add a layer of pebbles on top of the sand. The pebbles help trap larger particles and prevent the sand from being disturbed when water is poured in.

4. Filtration Process:

   • Pour the muddy water into the pot slowly. The water will pass through the pebbles and sand, which will filter out the mud and other impurities.
   • Collect the filtered water from the bottom of the pot or through a small outlet if the pot has one.

Explanation:

• The earthen pot itself is slightly porous, which allows the water to seep through slowly while holding back larger particles.
• The combination of pebbles and sand forms a natural filtration system, where pebbles block larger particles and sand filters out finer impurities.
• The result is cleaner water, though it may still need further treatment (like boiling) to ensure it is safe for drinking.