Εκπαιδευτική επίσκεψη στο Τμήμα Μηχανικών Περιβάλλοντος του Πολυτεχνείου Κρήτης. Στο πλαίσιο του προγράμματος erasmus plus του ΓΕΛ Ακρωτηρίου (Φεβρουάριος 2019)

1. Educational Visit to the Technical
University of Crete
Erasmus Greece
2018-2019
 Laboratory Experiment
on Sea Water
“W.A.T.E.R.- World's Attitude to the Treasure - Environmentand Responsibility” Erasm
us+ 2018-1-LV01- KA229-046949_5 mobility C1.

2. About the VISIT
On Friday, 18/1/2019, some members of the Erasmus
team visited the Technical University of Crete, where
we participated in an investigation about the
pollution of the local sea water. There, we had the
chance to analyze the waters, and find out what micro
bacteria lurk inside...
To be more specific, we were looking for two kinds of
bacteria, Ecoli and Enterococcus.

3. Ecoli
Enterococcus

4. The process:
First of all, we used sterilized small circular boxes,
filled with nutritional “juices” for the small bacteria.
This will allow them to grow faster than normal and
allow us to have our test results quicker.
Meanwhile, we filtered the water through a special
machine. In this way, we made sure that nothing
would interfere with our results.

5. “special machine”
Circular boxes

6. The process:
Later, we inputted the filter inside the specific
circular box and sealed it.
We took 4 tests, 2 for each bacteria, to make sure the
results will be identical.
After that, we put the boxes with bacteria into an
oven for a day, in about 35 to 37 degrees Celsius, in
order for the bacteria to grow up rapidly.

7. The filter

8. The results:
After a long day, the Erasmus team got the results.
We found out that only 2 or 3 colonies made by
bacteria per box, which means that our sea water is
relatively safe.
Notification: according to EU standards, sea water is
labeled as “polluted” if it contains at least 8O or more
colonies of bacteria per 100 ml.

9. And here is a part of
our educational trip
in a video.

10. Teachers
Maragkoudaki
Maria
Paizi Elissavet
Microbiologist
Anteli Popi
Students
Papadimitriou Marios
Markantonakis Stratos x2
Tzanakaki Nefeli
Agianoglou Evdokia
Kandaraki Maria
Sparaki Aggeliki
Kiriakopoulou Anastasia
Tzilivaki Irini
Markezini Xara
Xristopoulou Analina
Papaeuthimiou Anestis
Gliniadaki Irini