Water purification systems can be made in your own home.
With a growing world population and increasing water scarcity, water purification methods are becoming ever more popular. There are two types of contamination, biological and chemical, and they require different treatment methods. This article highlights a method of removing biological contamination.
Instructions
Instructions
1. Using the saw cut 8 inches off the bottom of one water bottle (bottle A.)
2. Remove the bottle cap. Attach the filter paper to the outside of the bottle neck using the rubber bands to secure it in place. Make sure the paper is fixed tightly and securely with no gaps.
3. Cut 8 inches off the top of the second water bottle (bottle B).
4. Invert bottle A so the neck is pointing toward the floor. Insert it into bottle B. Ensure the bottles fit tightly into each other and that there are no gaps. Bottle A will become the filter and bottle B the collection point.
5. Pour the gravel into bottle A. The filter paper should prevent the gravel falling into bottle B. Add the coarse sand on top of the gravel and then pour the fine sand on top of the coarse sand. Spread the carbon on top of the fine sand. A layered effect should be created.
6. Pour three liters of clean tap water into bottle B. This is needed to clean the filter. The filter is complete.
7. To test the effectiveness of the filter, pour two liters of contaminated water into the filter. The water collected in bottle B should be clear.
Tags: into bottle, bottle bottle, bottle neck, coarse sand, filter paper, fine sand, water bottle