water balance on earth
TRANSCRIPT
![Page 1: Water balance on earth](https://reader036.vdocuments.site/reader036/viewer/2022062418/555b4847d8b42af36d8b4deb/html5/thumbnails/1.jpg)
Water balance on Earth
![Page 2: Water balance on earth](https://reader036.vdocuments.site/reader036/viewer/2022062418/555b4847d8b42af36d8b4deb/html5/thumbnails/2.jpg)
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Janina – the artificial body of water in our area
• an artificial lake
• built at the turn of 40s and 50s
• surface – 1,4ha
• average depth – 1,2m
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Fitness trails.
Bike lanes.
Home for many species of animals.
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BREEDING
Good conditions to do sports.
It delivers industrial water for technological processes.
Jetties for fishermen.
RECREATION
Many bike lanes.
A source of drinking water for animals.
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Interview with retired miner
We asked many questions.
We were very curious.
Nothing escaped our attention.
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A survey with inhabitants of our estate
We found out how much people know about the body
of water called Janina.
We questioned 70 people, asking them 11 questions.
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Most of people know the body of water called Janina but they do not have enough knowledge about it.
They use bike lanes in the area of the body of water.
They do not fish there.
People know sources of pollution of the body of water.
Do all members of your family know the body of water Janina?
yes, all most of them nobody knows0
10
20
30
40
50
60 57
85
Num
ber o
f peo
ple
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A trip to Water Purification Plant
LecturesSightseeing
Work record
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Mechanical – biological – chemical water purification plant Gigablok: - based on the activated sludge method
- disposal of biogenes- grit chamber
- sludge higienisation facility- sludge digestion chambers
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Water quality testing
light orange colour
odour-free, not transparent
after filtration – the sediment was red
pH 10
high nitrate content – 10mg/l
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water polluted with heavy metals
water polluted with detergents
third class water quality
water eutrophication
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Conclusions
We have learnt creative and precise solutions for the local enviroment.
We have raised our sense of responsibility for this part of Earth where we live.
We have learnt how to improve the condition of the enviroment.
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We have made a poster which summarizes our work and written
an article to the locan newspaper
We have raised our sense of responsibility for the piece of
Earth we live on.
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Thanks for your
attention!