From dirty to clean

• By Joó Rebeka, Fejes Réka, Tódor Márk and Kiss Gábor Hunor

The history of the sewage works

• Before 1898 just driver well• New pipeline and reservoir

pool

OLD NEW

The sewage works• Opened in 1964• Modernized 1975• Biological cleaning• Modern laboratory

Experiments

Sewage water (by Kiss Gábor Hunor)

• Proportion of ammonia (NH3)• Checking the five different

specimens of water• conclusione

Experiment

• Add 4 ml of two different substances

• Wait 1 hour

Proportion of NH3Proportion of

NH3Extintion

Tap water 0,007 mg/l 0,005E

Running out sewage

0,048mg/l 0,037E

Incoming sewage

0,649mg/l 0,501E

Ammonia solution

1,275mg/l 0,815E

Fresh water(by Tódor Márk)

• 7 bottles of water

Experiment

• Measure 40ml• Add 10ml of

reactants

Experiment

• Wait 1 hour• Quality is

great

Microbiology(by Girls)• Exercise:

looking for bacteriums which cause illness

• The examination easy, but complecated

Experiment

• First placed drain paper on the drain

• Placed the funnel

Experiment

• Poured water • Pumped it• Placed the

drainpaper into the cups

Experiment

• Wait 2 days• Counted yellow

colonies

Our blue gold