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Educational scientific diagram in French detailing a three-step emergency water purification method using capillary filtration, sand filtration, and chlorine disinfection.

faire ce schema écrit en français **« Grand schéma éducatif en trois étapes, mélange harmonieux de deux présentations. À gauche : un bac rectangulaire de 2 litres d’eau très sale, avec sédiments visibles. Sept cordes épaisses en fibres naturelles (coton ou chanvre), diamètre 10 mm, longueur 40 cm, montent vers un bac de filtration placé plus haut. Flèches bleues montrant la capillarité ascendante. Texte court : “Capillarité – préfiltration naturelle”. Au centre : un bac de filtration en coupe, dimensions réalistes, avec trois couches bien visibles : – Charbon actif (5 cm) – Sable filtrant (5 cm) – Gravier (5 cm) Un plateau perforé répartit l’eau. Sous le filtre, un récipient de 2 litres reçoit l’eau clarifiée. Flèches bleues verticales montrant la filtration par gravité. Texte court : “Filtration mécanique + adsorption”. À droite : étape de désinfection. Petite bouteille de Javel 2,6 %, compte‑gouttes, tableau simple : 1 L = 2 gouttes 2 L = 4 gouttes 5 L = 10 gouttes Texte : “Attendre 30 minutes avant consommation”. Inclure une zone de sécurité : “Ne jamais boire l’eau clarifiée sans désinfection.” “Méthode d’urgence.” Style scientifique, propre, clair, inspiré des deux schémas d’origine, avec flèches bleues, titres simples, couleurs douces. »** Voir plus

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