Lab For Week 2 Essay

963 words - 4 pages

Water Quality and Contamination

Amye Cook

Dependence of Man on the Environment

Instructor: Rebecca Gillaspy

January 12, 2015

Lab 2 - Experiment 1: Effects of Groundwater Contamination
|Table 1: Water Observations (Smell, Color, Etc.) |
|Beaker |Observations |
|1 |Water is perfectly clear/No odor |
|2 ...view middle of the document...

Post-Lab Questions

1. Restate your hypothesis. Was it confirmed or denied? How do you know?
I would say that my hypothesis was correct as I thought that the three different contaminants would act differently in the water. Some would be easy to see some would only be identifiable by their odor.

2. What affects did each of the contaminants have on the water in the experiment? Which contaminant seemed to have the most potent effect on the water?
All of the three contaminates held on to the sediment from the soil, assuming to strip the soil of some of its natural properties. Regular water didn’t seem to have much effect on the soil, vinegar was only identifiable mostly by its smell, oil sat on top of the water and resumed that spot after a it settled after mixing, the detergent seemed to dissipate with no odor but carried the most sediment with it making it the most cloudy.

3. On a larger scale, what type of affects would these contaminants have on a town’s water source and the people who drank the water?
I would think that all of them could affect water is a towns as some would taste it in their water, others would probably be alarmed by its smell. It would be hard to say whether these contaminants would be able to naturally filter their way out before they got to a main underwater source.

4. What type of human activity would cause contaminants like oil, acid and detergents to flow into the water supply?

Oils can be spilt pretty easily when doing any type of work to motorized vehicles, acid I think would come from pollution and distributed into the ground during a rainfall, and detergents could possibly get to the water source by sewage from people as well as run off from farmers fields.

5. What other items within your house do you believe could contaminate the water supply if you were to dump them into the ground?

I think the ones that would be most detrimental are again sewage from using the dishwasher/clothes washer/ and using cleaning products that are flushed down the drains in our homes. Others things that I can think of would be different oil based products that I use in the garage; motor oil, gasoline, anti-freeze.

Lab 2 - Experiment 2: Water Treatment

Hypothesis:

Post-Lab Questions

1. Restate your hypothesis. Was it confirmed or denied? How do you know?

2. What are the differences between the “contaminated” water and the “treated” water (look at color, smell, visibility, etc.)?

The water was treated and mostly clear, no odor was there from the water being contaminated.

3. From the introduction to this lab, you know that there are typically five steps involved in the water treatment process. Identify the processes (e.g., coagulation) that were used in this lab and describe how they were performed.

The soil to separate from water

Time to allow contents to separate
The rock was use to separate large...

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