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High shear crossflow filtration

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A filter annulus in a rotating disk gives good retention even at large pore size due to the shear lift effect, which causes suspended solids to skip over the filter.  The retained solids in the radial recirculation device are dewatered and cavitated at the periphery to extrude a disinfected paste.  Gases are continuously stripped out at the axis of rotation. 

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Cholera Competent Communities: Towards a Social Vaccine

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Communities think and act for themselves. Facilitators stimulate them to take action through an approach that appreciates strengths and fosters local ownership. This is the Community Life Competence Process. Constellations member organisation RDCCompétence in collaboration with UNICEF is adapting the successful Community Life Competence process to Cholera.

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Novel approaches to the treatment and disinfection of cholera treatment centre wastewaters

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The successful operation of Cholera Treatment Centres (CTC) under the challenging conditions of a cholera epidemic can significantly reduce human mortality rates. This has been the case in Haiti where MSF has operated five CTCs and has treated more than 180,000 patients.

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