Cleaning+the+Water+-+Group+5

Cooper Beaupre, Paige Griffin, Caleb Angus, Cameryn Moore.

Lists of Materials- Filter Paper, Alum, Sand, Charcoal, Funnel, Beakers, Strainers, Bleach.

Procedure- Step 1. Our first step was to brought everything over to our lab table. The original water was very disgusting. It was very cloudy, and it almost like a slime. There were bits of paper in the water, and there was dirt too. It smelled like vinegar, and it had a pH of 4. The water was a forest green color. Step 2. Our actual first step was adding a few sprinkles of Alum, and then we mixed it together. It turned the water less obscure, or less cloudy. Also, there were bubbles of viniger on the top. Step 3. We then filtered it out using a funnel, and nothing else. All most all of the pieces of paper were out of the water, but there was still one or two pieces of paper in the water. Also, some of the dirt caught on the paper, so there was a little less dirt in the water. Step 4. Now we filtered it out with filter paper. We had to use two sheets of filter paper because when we just used one, it would tare. Almost all of the dirt was out of the water, and all of the out. The water was still green, and it still smelt like vinegar. Step 5. We put a few drops of bleach in the water, and then we mixed it. the bleach removed the vinegar-like-smell from the water, and it also took the greenish color from the water. After we mixed it, it turned a sort of pinkish color. Step 6. Our group then tested the water's pH scale using the pH stick. We got a pH of 4 meaning that it was still an Acid and not neutral, so it could not be drank. Step 7. We ran the water through the sand. We had to put a piece of filter paper underneath the sand, or else it would fall through the funnel and into the water. All of the dirt was removed from the water and visible particles were out of the water. Also, the water seemed to smell less like vinegar and more like bleach. Step 8. We ran the water through gravel and the funnel. After this there seemed to be less of a water sample we had before. Step 9. We ran it through the charcoal, and afterwards we tested the pH. It was much clearer, less pinkish, and when we poured it through, the charcoal was sizzling. It still had a pH of four, and it had bits of charcoal in it. Step 10. We filtered out the charcoal bits and then we tested the pH scale. It took a great period of time to finish filtering, but when It was done, it looked almost like a glass of tap water. It still had the smallest pink tint to it though, and the pH of it was still four.

Questions-


 * 1) What were you not able to remove? We weren't able to get the pinkish tint out of the water from the bleach. Also, we weren't able to increase the pH number to a neutral number of seven.
 * 2) How might you be able to remove it from the sample? We might be able to remove the pink tint from the water by continuing to filter it over and over again. We might have been able to increase the pH scale by adding small amounts of a base.
 * 3) How was your treatment process like that of the Sweetwater plant? We based most of our steps on the treatment process of the Sweetwater plant.
 * 4) How was your treatment process different? We didn't have all of the materials that they have access too, such ass the large amounts of chemicals. Also, we had a smaller water sample then they do, and the stuff in it was a simulation of the things in the actual water that is treated.