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Advanced waste water treatment for water reuse

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Desinfix: An advanced chlorine-free wastewater disinfection concept as an alternative to chlorine-based disinfection methods. It has performic acid (PFA) as an active substance, which a highly efficient biocide. This innovative technology is developed to meet the required microbiological standards, for instance, in various water reuse applications (agricultural and landscape irrigation, recreational applications, industrial water reuse applications). Desinfix is a fully biodegradable solution that provides rapid, safe and very efficient disinfection at low doses and with low total disinfection costs. Technology has low carbon footprint.

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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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Slow Sand Filters to replace disinfection unit in remote villages

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Slow Sand Filters with low filtration rates (0.05 cubic meters/sq meter per hour) can be installed instead of a disinfection unit in remote villages, where chemical disinfectant like Chlorine may not be easily available.

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Innovative solar disinfection for low-cost and socially acceptable potable water supplies from rooftop harvested rainwater

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Rainwater harvesting (RWH) is gaining interest as a safe drinking water supply option to achieve Millennium Development Goals (MDG) in developing countries. The lack of scientific and engineering knowledge, such as uncertainty of microbial quality, unavailability of proper end of point treatment in developing countries, however, often prohibit the use of rainwater. Although simple Solar Disinfection (SODIS) by using a polyethylene terephthalate (PET) bottle was recommended by the World Health Organization (WHO), there is a limitation of this technology due to incomplete disinfection at moderate and weak weather conditions.

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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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