Greening the global phosphorus cycle

How green chemistry can help achieve planetary P sustainability

Paul J A Withers, James Elser, Julian Hilton, Hisao Ohtake, Willem J. Schipper, Kimo C. Van Dijk

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

The sustainability of global phosphorus (P) use is emerging as a major societal goal to secure future food, energy, and water security for a growing population. Phosphate rock (PR) is a critical raw material whose inefficiency of use is leading to widespread eutrophication and uncertainties about supplies of affordable fertilizers. Green chemistry and green engineering can be applied to help close the global P cycle by addressing three sustainability challenges: (1) consume less PR and with greater efficiency, (2) minimise P losses and generation of waste P that can no longer be re-used, and (3) set economically, socially and environmentally acceptable P sustainability targets to lower P demand. Greater precision in P use by the agriculture sector (the main P flow) supported by smarter PR mining and processing technology could greatly improve global P use efficiency. Emerging bio-based and green chemical technologies could be more widely applied to enhance first- and second-generation valorization of low-grade PR ores, manures, by-products and residues to provide renewable secondary sources of P and other essential elements and compounds. All sectors of society have the potential to lower their P demands, and all production systems could be redesigned to facilitate recovery and recycling of P. Collectively these 'green engineering' actions at sector and regional level can help achieve planetary P sustainability.

Original languageEnglish (US)
Pages (from-to)2087-2099
Number of pages13
JournalGreen Chemistry
Volume17
Issue number4
DOIs
StatePublished - Apr 1 2015

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phosphorus cycle
phosphate rock
Phosphorus
Sustainable development
Phosphates
Rocks
sustainability
Strategic materials
engineering
Eutrophication
Manures
Fertilizers
production system
Agriculture
Ores
Byproducts
eutrophication
Recycling
manure
Raw materials

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution

Cite this

Withers, P. J. A., Elser, J., Hilton, J., Ohtake, H., Schipper, W. J., & Van Dijk, K. C. (2015). Greening the global phosphorus cycle: How green chemistry can help achieve planetary P sustainability. Green Chemistry, 17(4), 2087-2099. https://doi.org/10.1039/c4gc02445a

Greening the global phosphorus cycle : How green chemistry can help achieve planetary P sustainability. / Withers, Paul J A; Elser, James; Hilton, Julian; Ohtake, Hisao; Schipper, Willem J.; Van Dijk, Kimo C.

In: Green Chemistry, Vol. 17, No. 4, 01.04.2015, p. 2087-2099.

Research output: Contribution to journalArticle

Withers, PJA, Elser, J, Hilton, J, Ohtake, H, Schipper, WJ & Van Dijk, KC 2015, 'Greening the global phosphorus cycle: How green chemistry can help achieve planetary P sustainability', Green Chemistry, vol. 17, no. 4, pp. 2087-2099. https://doi.org/10.1039/c4gc02445a
Withers, Paul J A ; Elser, James ; Hilton, Julian ; Ohtake, Hisao ; Schipper, Willem J. ; Van Dijk, Kimo C. / Greening the global phosphorus cycle : How green chemistry can help achieve planetary P sustainability. In: Green Chemistry. 2015 ; Vol. 17, No. 4. pp. 2087-2099.
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