WaterGROUP 2Wiktoria Waniak – PolandPatrycja Orman- PolandZuzanna Pruchniak -PolandGloria Fernández Barbusano - SpainAlba García Gómez - SpainEduardo González Anelo - SpainAbraham González Guisado - SpainJanet González Rodríguez - SpainAdriana Mañero Santana - SpainPascal - Germany

Life-giving substance.

colorless,odorless,tasteless

and calorie-free It is essential for the

survival of all organisms on the

Earth.

No man, no animal, no plant would survive

without it.An elephant and a bacteria needs it;It is irreplaceable.

To be healthy, each person of six

billion people on Earth must

drink or eat (as a part of meal)

about two and a half liter of water.

If there is no water there would be no life on Earth.

A lack of water prevents the cultivation

of land and animal breeding.

Without water there is no food,

and when there is no food - there is no life!

The molecular structure of water.

Water is present on our planet in the three states of matter:

Solid Liquid Gaseous

Types of water depending on the purity and application

• RAW WATER•  salty water, eg. in a sea•  Spring water• Deep water•  Ground water

• surface water, for example a river•  precipitation water, e.g. rainwater

Water distilled

•  industrial•  drinking

•  water supply water

The presence of water in nature

• The water is very common on Earth. It occurs mainly in

the oceans which cover 70.8% of the Earth's

surface, but also in rivers, lakes and in the solid state

of matter in a form of a glacier. Part of the water is below the surface or in the atmosphere (clouds, water

vapor). Water that occurs in nature is a mixture of sal

and gas.

• In the cultural symbolism water is one of the elements.

• (Four in the European culture)• and is opposed to fire, earth and air.

WATERIt symbolizes life,

fertility and purification.

The water cycle in nature.

Sewage and pollution.

The wastewater.

Agricultural Pollution It consists of plant protection products (pesticides) which are

aimed at destroying harmful organisms,

but they also destroy beneficial organisms.

The fertilizers are also very important which are only partly

used by plants. Their excess is washed by rain and collects together with groundwater

in water reservoirs causing a build-up of

nutrients - which in turn leads to disruption

of ecological balance (eutrophication)

Industrial pollution• It is created:

• When raw materials are extracted,• in the course of the cooling of the machinery,

• filtration,• Distillation

 Their composition is highly variable and dependent on the type of production.

They are harmful to living organisms because can destroy the liver, gastrointestinal tract

and cardiovascular system.

Municipal pollution• The urban waste water mixture of household waste,

feces, hospital wastes, baths, laundries and industrial plants.

• A significant proportion of this kind of waste is present in suspension or dissolved organic compounds, in particular proteins, fats and

carbohydrates.• They also contain pathogenic microorganisms which

are the source of diseases such as typhoid, cholera, typhoid fever, poliomyelitis.

• Another important component of waste water are heavy metals, e.g. lead, mercury. These substances,

if penetrate animal organisms, including human beings, cause damage to the liver, blood vessels,

heart, nervous system and bones.

Water quality classes:• First - very good quality

• Second - good quality

• Third – satisfactory

• Fourth – unsatisfactory

• Fifth - bad quality

THE MOST TYPICAL WATER QUALITY CLASS IN POLAND IS THE FOURTH AND FIFTH ONE

The most important way by which you can influence water conservation is the building the sewage treatment plants. In our country, the modern sewage treatment plants begin to appear thanks to which it is possible to treat waste water and reuse it.

SEWAGE TREATMENT METHODS:• MECHANICAL (Grade I)• BIOLOGICAL (stage II)• CHEMICAL (stage III)

WAYS OF WATER SAVING

• There are many ways to improve the process of saving water. Each of us

should, however, save water to the great extent. One way to save water is to store the wastes in special tanks designated

for this purpose. Unfortunately, garbage like cans, wrappers and bottles can be

seen floating on the surface of our rivers. We must remember that we harm not

only the environment, but ourselves as well!

WHAT CAN YOU DO TO SAVE WATER?

• - Repair leaking faucets, gaskets regularly.• - When washing your teeth pour water into the cup.

• - Use water-saving cisterns.• - Collect "rainwater" for watering the plants.

• - Use the eco-friendly cleaning products (liquids, powders).• - Wash the dishes in a bowl.

• - Take a shower instead of a bath.• - Wash dirty clothes by setting the "eco" program in your washing

machine

• It is difficult to believe at the first sight that our

planet where most of its surface is water, suffer from its deficiency. However, 97% of the world's water is not

suitable for drinking or irrigation because of the

high salinity, and the rest of it is trapped in inaccessible

deep water resources, glaciers and ice sheets.

• Water is the most important  in the world

• We must all take care of it!

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