The United Nations have set the target to halve the share of those without access to adequate sanitation by 2015 as part of the Millennium Development Goals. Simplified sewerage is sometimes also referred to as conventional sewerage with appropriate standards, implying that most conventional sewers are overdesigned.Ĭurrently more than two billion people in developing countries do not have access to adequate sanitation. With simplified sewerage it is crucial to have management arrangements in place to remove blockages, which are more frequent than with conventional sewers. It is suitable for existing unplanned low-income areas, as well as new housing estates with a regular layout. Simplified sewers are laid in the front yard or under the pavement (sidewalk) or - if feasible - inside the back yard, rather than in the centre of the road as with conventional sewerage. Simplified sewerage is a low-cost sewer system that collects all household wastewater (WC wastes and sullage) in small-diameter pipes laid at fairly flat gradients.
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February 2023
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