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Erschienen in:
2019 | OriginalPaper | Buchkapitel
24. From Rain Drain to Rain Gain
An IoT Solution to Address Cape Town’s Water Crisis Using Rainwater Harvesting
verfasst von : Natasha Zlobinsky, Inken Oldsen-thor Straten, Carolyn McGibbon
Erschienen in: Smart Cities/Smart Regions – Technische, wirtschaftliche und gesellschaftliche Innovationen
Verlag: Springer Fachmedien Wiesbaden
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Abstract
The City of Cape Town is affected by a critical water shortage. The most recent water restriction limited residents’ water consumption to 50 litres per person per day. Despite this measure, residents have not been able to reduce their consumption as much as required. Consequently, the demand for water from municipal pipelines is higher than the supply. In this context, we contend that the potential of rainwater harvesting is not fully exploited, although it has the potential to be an alternative solution by reducing the demand for water from municipal pipelines. This paper presents the concept and initial design of an integrated Internet of Things-based rainwater harvesting system. The system includes sensors to measure the inflow and outflow quantities of water into collection tanks, as well as water quality indicators, and integrates rain forecasts to allow users to estimate their potential rainwater harvesting gains. A mobile application is the main way users could interact with the system.