Foul Water Lab Report

June 18th, summer of 2013

Dr. Forman

Julia, Kourosh, Clemmy (Hydrogen) 

Foul Water Experiment 

Abstract: 

Durring our procedure we filtered foul water in 3 ways: oil water separation, sand flirtation, and charcoal adsorption and flirtation. Our group was able to purify the water successfully turing the brown water into clear water. Before we were not able to wash our hands in the water; however, at the end, we were able to. 

Procedure: 

1. Make a data table
2. Get 100 mL of foul water
3. Fill out the first row of data in the table 
4. Add oil to the water
5. Allow your sample to sit for one minute causing the oil to rise to the top
6. Remove the oil from the water
7. Add distilled water to the removed oil
8. Fill out the second row of data in the table 
9. Dispose of the liquid 
10. Poke holes in the bottom of a disposable cup 
11. Add 1cm of gravel then 2 cm of sand and then another cm of gravel 
12. Gently pour the sample into the cup
13. Catch the filtrate in a beaker as it pours through
14. Dispose of sand and gravel 
15. Place a moist folded piece of paper into the funnel 
16. Place the funnel into a clay triangle supported by a ring with a beaker underneath 
17. Place 1 teaspoon of charcoal into the flask; pour the water, then stir 
18. Gently pour the liquid through the paper allowing it to filter through
19. If your filtrate is dark then repeat step 18 
20. Then record your results

Results: 

Distillation: Salt water is heated in a test tube and the water evaporates, leaving only the salt. Then, the water vapor condenses and a pure liquid remains in the second test tube, while only salt remains in the first. 

Conductivity: When saltwater is placed under a conductivity test, the light bulb goes on. When distilled water is placed under a conductivity test, nothing happens. Therefore, even though both solutions "appear" to both be clear, they are actually different and have other minerals added. 

1. Percent Recovery: 82%. 
2. We lost 18 mL of foul water.
3. We lost 18% of foul water.