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  1. 1. Comenius Water a vital element 3rd. Meeting Yozgat (Turkey) 25 th. Sept. – 1st. Oct.
  2. 2. Presentation <ul><li>We are from Calaf... </li></ul><ul><li>Domestic use of water </li></ul><ul><li>To save water </li></ul><ul><li>The use of biology to clean wasted water </li></ul>
  3. 3. We are from... Calaf <ul><li>Calaf is in the middle of Catalonia. It is in a district called Anoia and in the province of Barcelona. It has aproximately 3500 inhabitants. It is about 680 metres above sea level. It has got Mediterranean climate. </li></ul>
  4. 4. Calaf Barcelona Our situation E b r e r i v e r
  5. 5. The economy of Calaf <ul><li>The economy in Calaf is based on the dry agriculture, specially cereals. </li></ul><ul><li>There are four main factories that make building material. </li></ul><ul><li>The market is important, too, for the economy of the village. </li></ul>
  6. 6. The most important monuments <ul><li>The belfry of Calaf is the third tallest in Catalonia. </li></ul><ul><li>The market of Calaf is well-known in all the autonomous communities. In the past it was done on Saturday mornings in “Plaça gran” -> </li></ul>
  7. 7. Our school <ul><li>Our school has aproximately 280 students . </li></ul><ul><li>These students are from Calaf and other villages like: Torà, Sant Martí, Prats, la Molsosa, Castellfollit... </li></ul><ul><li>In our school there are about 30 teachers. </li></ul>
  8. 8. Domestic water in Calaf <ul><li>Running water arrived in Calaf in 1970. This was very late because they had to bring it from dams or rivers far away from here. </li></ul>
  9. 9. Domestic use of water
  10. 10. Domestic use of water <ul><li>Here we can see the domestic use of water in Catalonia. </li></ul>
  11. 11. The price of water in Catalonia <ul><li>The water in Catalonia is very expensive, but in the province of Barecelona it’s even more expensive. It costs 1,497 €/m3. </li></ul>Calaf
  12. 12. The water bill <ul><li>There are two parts: </li></ul><ul><li>1- Water service </li></ul><ul><li>Fixed water service </li></ul><ul><li>Consume </li></ul><ul><li>V.A.T </li></ul><ul><li>2- ACA ( Water Catalan Agency) </li></ul><ul><li>Water canon </li></ul><ul><li>V.A.T </li></ul>
  13. 13. The water bill <ul><li>Water service: </li></ul><ul><ul><li>Fixed quota service </li></ul></ul><ul><ul><li>1st. Block </li></ul></ul><ul><ul><li>V.A.T. </li></ul></ul><ul><li>Catalan agency of water: </li></ul><ul><ul><li>Water canon </li></ul></ul><ul><ul><li>V.A.T. </li></ul></ul>
  14. 14. Visiting a salt treatment plant <ul><li>We went to the salt treatment plant in El Prat de Llobregat. </li></ul><ul><li>Explaining our visit. </li></ul>
  15. 15. Visiting a salt treatment plant <ul><li>The different parts of the salt treatment plant. </li></ul><ul><li>The inverse osmosis treatment. </li></ul><ul><li>The 25% of Barcelona’s water can be produced here. </li></ul>
  16. 16. To save water <ul><li>Classical tap </li></ul><ul><li>Monocomandment tap </li></ul><ul><li>There are more classical taps than monocomandment taps in Calaf. </li></ul>
  17. 17. To save water <ul><li>Most people in Calaf have showers instead of having baths. </li></ul><ul><li>It saves more water. </li></ul>
  18. 18. To save water <ul><li>Most people in Calaf have C,D and E level household, because the most efficient household, A and B, are very expensive. </li></ul>
  19. 19. To save water (Other systems) <ul><li>Saving the raining water system. </li></ul><ul><li>Saving the grey waters system. </li></ul><ul><li>Swimming pools </li></ul><ul><li>There are just a few of these systems in Calaf. </li></ul>
  20. 20. The use of biology to clean wasted water <ul><li>Sometimes people can use the biology to clean the wasted water, for example some bacteries, which clean the water. </li></ul>
  21. 21. The use of biology to clean wasted water <ul><li>- Pretreatment </li></ul><ul><li>- Primary treatment </li></ul><ul><li>- Secondary treatment </li></ul>
  22. 22. Thank you very much for your attention