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O echipă de chimişti de la Academia de Ştiinţe din China, coordonată de Jiaxing Li, a inventat cu ajutorul scrumului de ţigară un filtru de apă.
Cercetătorii au învelit scrumul în oxid de aluminiu, obţinând astfel un filtru cu care pot scoate foarte eficient arsenicul din apă.
Purificarea se realizează în procent de 96%, deci filtrul este suficient de performant pentru a îndeplini standardele de calitate impuse de Organizaţia Mondială a Sănătăţii pentru filtrele de arsenic.
Secretul este natura poroasă a scrumului de ţigară, care îl face ideal pentru a filtra apa. Filtrul astfel obţinut este ieftin şi poate fi o soluţie pentru cele peste 130 de milioane de oameni care suferă din cauza apei potabile contaminate cu arsenic.
Sursa: Gizmodo
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