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| EDENVIS |
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HIGH LEVEL EDUCATION IN ENVIRONMENTAL SCIENCES |
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| Water Quality Monitoring |
| Hardware: |
Benchtop pH Meter, manufactured by Thermo Orion (type 420 A), with analogue output (with the possibility to be coupled to the serial input of the computer) |
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Personal Computer |
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Calibration kit for the pH meter |
| Software: |
A special designed software (under Windows Visual Basic 6.0) makes possible data storage and management |
| Education: |
In order to measure the quality of the water, the pH of different waters (from lakes, rivers, or rain) can be monitorised. The students learn, using this system to set-up and to calibrate the pH – meter and to recognize the kinds of polluted waters. |
| Calibration |
| P1 |
pH=4.01
156.6mV 25.5C |
| P2 |
pH=7.00
-20.7mV 25.5C |
| P3 |
pH=10.01
-185.2mV 25.4C |
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SLP=96.2%
ISO=7.000
12:47 05-27-03 |
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Rain water Bucharest May 23 |
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pH =8.22
-86.4mV 23.5C
12:51 05-27-03 |
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River water Predeal May 15 |
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pH =6.87
-13.4mV 24.4C
12:56 05-27-03 |
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Drinking water Bucharest May 27 |
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pH =7.11
-27.3mV 23.6C
12:57 05-27-03 |
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