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Page 6 of 7
EDENVIS
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)
  Personal Computer
  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
  SLP=96.2%
ISO=7.000
12:47 05-27-03
  Rain water Bucharest May 23
  pH =8.22
-86.4mV 23.5C
12:51 05-27-03
  River water Predeal May 15
  pH =6.87
-13.4mV 24.4C
12:56 05-27-03
  Drinking water Bucharest May 27
  pH =7.11
-27.3mV 23.6C
12:57 05-27-03
 
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