How to Enhance Phosphorus Recovery from Urine as Struvite During Its Storage?

Nicolás Hernández-Alcayaga, Dafne Crutchik

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Phosphorus is a non-renewable and exhausted resource and urine is an ideal candidate for its sustainable recovery. This work investigates the recovery of phosphorus as struvite during the storage of urine using different volumetric ratios of fresh/hydrolyzed urine, and two magnesium sources, seawater and brine, to promote struvite crystallization. Results indicate that the addition of hydrolyzed urine to fresh urine would be a suitable strategy to improve urea hydrolysis, and consequently to reduce the storage time for phosphorus precipitation from urine when seawater was added, obtaining high efficiencies for its recovery. Up to 87% of phosphorus was recovered as struvite from urine when fresh urine is mixed with hydrolyzed urine and seawater was added.

Original languageEnglish
Title of host publicationInternational Conference on Wider-Uptake of Water Resource Recovery from Wastewater Treatment, ICWRR 2024
EditorsGiorgio Mannina, Alida Cosenza, Antonio Mineo
PublisherSpringer Science and Business Media Deutschland GmbH
Pages203-208
Number of pages6
ISBN (Print)9783031633522
DOIs
StatePublished - 2024
Externally publishedYes
EventInternational Conference on Wider-Uptake of Water Resource Recovery from Wastewater Treatment, ICWRR 2024 - Palermo, Italy
Duration: 18 Jun 202421 Jun 2024

Publication series

NameLecture Notes in Civil Engineering
Volume524 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

ConferenceInternational Conference on Wider-Uptake of Water Resource Recovery from Wastewater Treatment, ICWRR 2024
Country/TerritoryItaly
CityPalermo
Period18/06/2421/06/24

Keywords

  • Brine
  • Hydrolyzed urine
  • Magnesium sources
  • Seawater
  • Struvite

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