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The sanitation and urban agriculture nexus: urine collection and application as fertilizer in São Paulo, Brazil

Cardoso Chrispim, Mariana LU ; A. Tarpeh, William ; Salinas, Delhi T. P. and Nolasco, Marcelo Antunes (2017) In Journal of Water, Sanitation and Hygiene for Development 7(3).
Abstract
Separately collected urine is an attractive potential fertilizer because of its high nutrient content, low cost, and inherent linkage of urban wastewater management and peri-urban agriculture. Urine from waterless urinals was applied to corn and lettuce plants to examine the impact of urine application rates and frequency on plant growth and soil parameters. In both corn and lettuce experiments, urine application significantly (p < 0.05) increased growth and leaf production relative to control plants. More frequent applications led to lower soil cation exchange capacities for corn and higher soil nitrogen content for both crops. Based on preliminary implementation calculations, waterless urinals at the University of São Paulo (USP),... (More)
Separately collected urine is an attractive potential fertilizer because of its high nutrient content, low cost, and inherent linkage of urban wastewater management and peri-urban agriculture. Urine from waterless urinals was applied to corn and lettuce plants to examine the impact of urine application rates and frequency on plant growth and soil parameters. In both corn and lettuce experiments, urine application significantly (p < 0.05) increased growth and leaf production relative to control plants. More frequent applications led to lower soil cation exchange capacities for corn and higher soil nitrogen content for both crops. Based on preliminary implementation calculations, waterless urinals at the University of São Paulo (USP), School of Arts, Sciences, and Humanities campus could lead to over 1,500 m3 of water saved and 360 m3 of urine produced on an annual basis. These experiments and modeling results are discussed in the context of scaling up urban urine collection, transport, and fertilization in São Paulo, Brazil. (Less)
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author
; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Water, Sanitation and Hygiene for Development
volume
7
issue
3
publisher
IWA Publishing
external identifiers
  • scopus:85029912698
ISSN
2043-9083
DOI
10.2166/washdev.2017.163
language
English
LU publication?
no
id
7a068c79-1785-4255-8210-999ed40c114d
date added to LUP
2019-08-20 13:01:44
date last changed
2022-02-15 23:06:28
@article{7a068c79-1785-4255-8210-999ed40c114d,
  abstract     = {{Separately collected urine is an attractive potential fertilizer because of its high nutrient content, low cost, and inherent linkage of urban wastewater management and peri-urban agriculture. Urine from waterless urinals was applied to corn and lettuce plants to examine the impact of urine application rates and frequency on plant growth and soil parameters. In both corn and lettuce experiments, urine application significantly (p &lt; 0.05) increased growth and leaf production relative to control plants. More frequent applications led to lower soil cation exchange capacities for corn and higher soil nitrogen content for both crops. Based on preliminary implementation calculations, waterless urinals at the University of São Paulo (USP), School of Arts, Sciences, and Humanities campus could lead to over 1,500 m3 of water saved and 360 m3 of urine produced on an annual basis. These experiments and modeling results are discussed in the context of scaling up urban urine collection, transport, and fertilization in São Paulo, Brazil.}},
  author       = {{Cardoso Chrispim, Mariana and A. Tarpeh, William and Salinas, Delhi T. P. and Nolasco, Marcelo Antunes}},
  issn         = {{2043-9083}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{IWA Publishing}},
  series       = {{Journal of Water, Sanitation and Hygiene for Development}},
  title        = {{The sanitation and urban agriculture nexus: urine collection and application as fertilizer in São Paulo, Brazil}},
  url          = {{http://dx.doi.org/10.2166/washdev.2017.163}},
  doi          = {{10.2166/washdev.2017.163}},
  volume       = {{7}},
  year         = {{2017}},
}