Journal metrics

Journal metrics

  • CiteScore value: indexed CiteScore indexed
  • SNIP value: indexed SNIP
    indexed
  • SJR value: indexed SJR
    indexed
  • IPP value: indexed IPP
    indexed
Proc. IAHS, 376, 83-86, 2018
https://doi.org/10.5194/piahs-376-83-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
 
01 Feb 2018
Socio-Hydrological Approach to the Evaluation of Global Fertilizer Substitution by Sustainable Struvite Precipitants from Wastewater
Dirk-Jan Daniel Kok1, Saket Pande1, Angela Renata Cordeiro Ortigara2, Hubert Savenije1, and Stefan Uhlenbrook1,2 1Department of Water Management, Delft University of Technology, Delft, the Netherlands
2World Water Assessment Programme, UNESCO, Perugia, Italy
Abstract. Despite Africa controlling the vast majority of the global phosphate it also faces the greatest food shortages – partially due to a lack of access to the fertilizer market. A more accessible source of phosphorus comes from wastewater flows, which is currently lost through the discharge to open surface waters. Analysing the potential phosphorus production of urban and livestock wastewater in meeting partial agricultural demand for phosphorus can improve food security, reduce consumption of unrenewable phosphorus, reduce pollution, and aid the transitioning to a circular economy. In this study, a global overview is provided where a selection of P-production and P-consumption sites have been determined using global spatial data. Distances, investment costs and associated carbon footprints are then considered in modelling a simple, alternative trade network of struvite phosphorus flows. The network reveals potential for increasing the phosphorus security through phosphorus recycling in particularly the South Africa, Lake Victoria and Nigeria regions. Given Africa's rapid urbanization, phosphorus recovery from wastewater will prove an important step in creating sustainable communities, protecting the environment while improving food security, and so contributing to the United Nations 2030 Agenda for Sustainable Development.

Citation: Kok, D.-J. D., Pande, S., Ortigara, A. R. C., Savenije, H., and Uhlenbrook, S.: Socio-Hydrological Approach to the Evaluation of Global Fertilizer Substitution by Sustainable Struvite Precipitants from Wastewater, Proc. IAHS, 376, 83-86, https://doi.org/10.5194/piahs-376-83-2018, 2018.
Publications Copernicus
Download
Short summary
Phosphorus is necessary for the development of crops and is therefore essential in safeguarding our food security. Several studies predict that our rock phosphate reserves, used to create synthetic, phosphatic fertilizers, may become depleted within this century. This study roughly approximates for which areas in Africa we can instead recover phosphorus from wastewater in order to reduce our dependancy on unsustainable rock phosphate.
Phosphorus is necessary for the development of crops and is therefore essential in safeguarding...
Share