Lifelong Learning Programme

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Title of the Experience
Development and implementation of a water-purification
Name of the teacher
Amparo Ponce Polo
Country where it took place
School typology
High Secondary School
Thematic Area
Experience typology
Type of contact
Description of the Experience
This experience allows students to study the main physical, chemical and biological processes taking place in a water treatment plant.

To experiment we need 3 plastic bottles that we will cut in a half and we keep 5 containers (3 of top of the bottle and 2 of the bottom of the bottle). The assembly is available if we put all the containers in decreasing heights to allow the water to go from one container to another by gravity.
• In the first container (without cap) we put a filter consisting of a metal net to eliminate suspended matter (physical treatment: mechanical filtration).
• In the second container (with cap) a decantation will be made, only by gravity. It is important that the communication conduit to the third container is placed in the upper part, so that in this way the cleaner water will go to the next container.
• In the third container (with cap), the flocculation process will take place, it is added drop wise to aluminium sulphate until the flocks are formed, which will be falling to the bottom. It is important to place the communication channel with the next container on the top of the container.
• In the fourth container (also with cap), the last filtration process is done through filters made with sand in the bottom and on the top gravel. Instead of plug it will be a gauze filter serving also to prevent sand from falling.
• The circulating water will fall into the last vessel (without cap), wherein the biological treatment is performed. Few drops of bleach be poured, in order to much of the microorganisms.
NOTE: The purpose of the container with cap is to allow funds to be cleaned, , as in the treatment plants.

The experiment allows them to understand the operation of a water-purification plant and may encourage responsible consumption and reject behaviour that reduces water quality.

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Dissemination Seminar in Florence

31 October 2015 The seminar has been held in ITIS “A. Meucci” one of the schools involved within Goerudio project activities. Its main aim was to promote the results of the project toward a broad sample of stakeholders even overcrossing the number of people directly involved in the production of project outcomes. This purpose has been totally achieved especially thanks to the participation of students and teachers coming from different schools or from other classes instead of those ones directly involved within the project activities.