5 research outputs found

    Application de l'impression 3D à l'élaboration de filtres en céramique pouvant servir au traitement de l'eau au point d'utilisation

    No full text
    International audienceWater is an indispensable resource for the survival of every human being; it’s essential for the health and a fundamental human right. So, in order to provide enough quality water to populations whatever the context, researchers are now further focusing on innovative procedures of easy and cheap exploitation allowing access to enough quality water at the user end. Therefore, one of the innovative techniques used in various area in science is three-dimensional (3D) printing. Thus for this study, a 3D printer, “Ultimaker 1”, initially designed for plastic printing has been tailored for the confection of ceramic filters. These filters can treat the water to be consumed at the user end. From this experience we can notice that this innovative concept, could very soon become a reliable alternative in the provision of enough and quality water in developing countries.L’eau est une ressource indispensable Ă  la survie de tout ĂȘtre vivant, essentiel pour la santĂ©, et constitue un droit fondamental pour tout homme. Ainsi, afin de fournir de l’eau de qualitĂ© en quantitĂ© suffisante aux populations quels que soient les contextes, les recherches scientifiques s’orientent actuellement vers le dĂ©veloppement de procĂ©dĂ©s novateurs, d’exploitation facile et peu coĂ»teux. L’objectif Ă©tant de permettre l’accĂšs Ă  de l’eau de qualitĂ© en quantitĂ© suffisante au point d’utilisation. À cet effet, une des techniques novatrices qui aujourd’hui retrouve son application dans divers domaines de la science est l’impression tridimensionnelle (3D). Ainsi au cours de cette Ă©tude une imprimante 3D, l’ «Ultimaker 1» destinĂ©e initialement Ă  l’impression Ă  base de matiĂšre plastique a Ă©tĂ© adaptĂ©e afin de servir Ă  la fabrication de filtres en cĂ©ramiques. Ces filtres pourront retrouver des applications en traitement de l’eau destinĂ©e Ă  la consommation au point d’utilisation. Il ressort de cette expĂ©rience que ce concept novateur, pourrait devenir dans un avenir proche, une alternative viable Ă  la fourniture d’eau potable en quantitĂ© et qualitĂ© suffisante dans les Pays en DĂ©veloppement

    Application de l'impression 3D à l'élaboration de filtres en céramique pouvant servir au traitement de l'eau au point d'utilisation

    No full text
    International audienceWater is an indispensable resource for the survival of every human being; it’s essential for the health and a fundamental human right. So, in order to provide enough quality water to populations whatever the context, researchers are now further focusing on innovative procedures of easy and cheap exploitation allowing access to enough quality water at the user end. Therefore, one of the innovative techniques used in various area in science is three-dimensional (3D) printing. Thus for this study, a 3D printer, “Ultimaker 1”, initially designed for plastic printing has been tailored for the confection of ceramic filters. These filters can treat the water to be consumed at the user end. From this experience we can notice that this innovative concept, could very soon become a reliable alternative in the provision of enough and quality water in developing countries.L’eau est une ressource indispensable Ă  la survie de tout ĂȘtre vivant, essentiel pour la santĂ©, et constitue un droit fondamental pour tout homme. Ainsi, afin de fournir de l’eau de qualitĂ© en quantitĂ© suffisante aux populations quels que soient les contextes, les recherches scientifiques s’orientent actuellement vers le dĂ©veloppement de procĂ©dĂ©s novateurs, d’exploitation facile et peu coĂ»teux. L’objectif Ă©tant de permettre l’accĂšs Ă  de l’eau de qualitĂ© en quantitĂ© suffisante au point d’utilisation. À cet effet, une des techniques novatrices qui aujourd’hui retrouve son application dans divers domaines de la science est l’impression tridimensionnelle (3D). Ainsi au cours de cette Ă©tude une imprimante 3D, l’ «Ultimaker 1» destinĂ©e initialement Ă  l’impression Ă  base de matiĂšre plastique a Ă©tĂ© adaptĂ©e afin de servir Ă  la fabrication de filtres en cĂ©ramiques. Ces filtres pourront retrouver des applications en traitement de l’eau destinĂ©e Ă  la consommation au point d’utilisation. Il ressort de cette expĂ©rience que ce concept novateur, pourrait devenir dans un avenir proche, une alternative viable Ă  la fourniture d’eau potable en quantitĂ© et qualitĂ© suffisante dans les Pays en DĂ©veloppement

    The combined effect of three floating macrophytes in domestic wastewater treatment

    No full text
    We conducted this study to assess the efficiency of the combination of three floating macrophytes (Eichhornia crassipes (water hyacinth), Pistia stratiotes L. (water lettuce), and Lemna minor L. (duckweed)) for the treatment of domestic wastewater. The experiments were performed on a pilot scale consisting of four basins aligned in series: one anaerobic pond, two facultative ponds (containing water hyacinth and water lettuce respectively), and one maturation pond (containing duckweed). The study showed that combining the different macrophytes studied led to significantly reduced pollution in domestic wastewater. Based on inlet pollution loads, water hyacinth pond better eliminate carbon pollution. The water lettuce pond was good at removing nitrogen pollution, and the duckweed pond better-eliminated phosphorus. The overall yield for TSS, COD, BOD5, TKN, and PO43− was 92%, 98%, 98%, 87%, and 80% respectively. Based on the results, combining different floating macrophytes in a domestic wastewater treatment plant could improve its overall treatment performance
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