What Are The Four Dissimilar Water Samples
Abstract:
The aim of the experimental investigation was to gather four dissimilar water samples and test them in several different methods to see which water sample had the best quality. The tests that were used were that of: A faecal coliforms test, phosphate test, nitrates test, pH test, dissolved oxygen test and a total dissolved solids test. It was thought out that filtered water would hold the highest standards, the most sanitary water samples was that of tap water, then followed by filtered, then tank (rain) water and creek water respectively. (The three water samples of tap, filtered and tank water were all relatively close to one another in relation to quality, whereas creek water was moderately distanced from the rest of …show more content…
The Bunsen Burner was set up and the glass spreader was applied with ethanol.
2. The glass spreader was flamed to sterilize it and remove any contaminating bacteria.
3. The pipette was used to place water on agar plate.
4. The glass spreader was used to spread the water sample over the agar plates.
5. The agar plates were closed and sealed with sticky tape.
6. The agar plates were placed in the incubator and left for 48 hours.
7. Once the plates had been incubated for 48 hours, they were observed and the FCU colony forming units were counted.
Phosphate Test:
1. 1. The cap was removed from the plastic vessel. The vessel was then rinsed with water.
2. A water sample was then added and filled up to the 10 mL mark.
3. 1 packet of HI 3833-0 Phosphate Reagent was then added to the water sample.
4. The cap was replaced and the solution was mixed until the solids had dissolved.
5. The cap was removed and the solution was transferred into the color comparator cube.
6. The sample was left to set for 1 minute in the comparator cube.
7. The color matching the sample within the tube was determined and the result was recorded.
8. This process was further repeated for the remaining water …show more content…
One calculation which set the two apart was that of the pH test. A reading of 7 when using the pH test indicates a very good water source for taste quality, the filtered sample gave a reading of 7.33 whereas the tap water sample gave a 6.87. Although the total values for both don’t seem to be that dissimilar, the values make a big difference. As pH levels for water most commonly fall between 6-9 (6 is softer water and partly acidic, whereas 9 is much harder). These figures won’t necessarily affect health issues, but usually a water sample that has a pH reading relatively close to 7 will have a greater
The aim of the experimental investigation was to gather four dissimilar water samples and test them in several different methods to see which water sample had the best quality. The tests that were used were that of: A faecal coliforms test, phosphate test, nitrates test, pH test, dissolved oxygen test and a total dissolved solids test. It was thought out that filtered water would hold the highest standards, the most sanitary water samples was that of tap water, then followed by filtered, then tank (rain) water and creek water respectively. (The three water samples of tap, filtered and tank water were all relatively close to one another in relation to quality, whereas creek water was moderately distanced from the rest of …show more content…
The Bunsen Burner was set up and the glass spreader was applied with ethanol.
2. The glass spreader was flamed to sterilize it and remove any contaminating bacteria.
3. The pipette was used to place water on agar plate.
4. The glass spreader was used to spread the water sample over the agar plates.
5. The agar plates were closed and sealed with sticky tape.
6. The agar plates were placed in the incubator and left for 48 hours.
7. Once the plates had been incubated for 48 hours, they were observed and the FCU colony forming units were counted.
Phosphate Test:
1. 1. The cap was removed from the plastic vessel. The vessel was then rinsed with water.
2. A water sample was then added and filled up to the 10 mL mark.
3. 1 packet of HI 3833-0 Phosphate Reagent was then added to the water sample.
4. The cap was replaced and the solution was mixed until the solids had dissolved.
5. The cap was removed and the solution was transferred into the color comparator cube.
6. The sample was left to set for 1 minute in the comparator cube.
7. The color matching the sample within the tube was determined and the result was recorded.
8. This process was further repeated for the remaining water …show more content…
One calculation which set the two apart was that of the pH test. A reading of 7 when using the pH test indicates a very good water source for taste quality, the filtered sample gave a reading of 7.33 whereas the tap water sample gave a 6.87. Although the total values for both don’t seem to be that dissimilar, the values make a big difference. As pH levels for water most commonly fall between 6-9 (6 is softer water and partly acidic, whereas 9 is much harder). These figures won’t necessarily affect health issues, but usually a water sample that has a pH reading relatively close to 7 will have a greater