Journal article
An economic evaluation of phosphorus recovery as struvite from digester supernatant
Bioresource Technology, Vol.97(17), pp.2211-2216
2006
Abstract
Phosphorus can be recovered from wastewater through crystallisation of struvite, MgNH4PO4 · 6H2O. Approximately 1 kg of struvite can be crystallised from 100 m3 of wastewater. Crystallisation is profitable compared to chemical and biological removal of phosphorus due to savings from the reduction in (i) chemicals used for precipitation and sludge disposal; and (ii) downtime for cleaning unwanted struvite formed during chemical and biological removal. The struvite produced annually from a wastewater treatment plant that processed 100 m3/d, would be sufficient to apply on 2.6 ha of arable land, as fertilizer. If struvite were to be recovered from wastewater treatment plants worldwide, 0.63 million tons of phosphorus (as P2O5) could be harvested annually, reducing phosphate rock mining by 1.6%. Therefore, this technology could provide opportunities to recover phosphorus sustainably from waste streams and preserve phosphorus reserves.
Details
- Title
- An economic evaluation of phosphorus recovery as struvite from digester supernatant
- Authors/Creators
- L. Shu (Author/Creator) - James Cook UniversityP. Schneider (Author/Creator) - James Cook UniversityV. Jegatheesan (Author/Creator) - James Cook UniversityJ. Johnson (Author/Creator) - Great Barrier Reef Marine Park Authority
- Publication Details
- Bioresource Technology, Vol.97(17), pp.2211-2216
- Publisher
- Elsevier BV
- Identifiers
- 991005545112107891
- Copyright
- © 2005 Elsevier Ltd.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.83 Bioengineering
- 3.83.2268 Struvite
- Web Of Science research areas
- Agricultural Engineering
- Biotechnology & Applied Microbiology
- Energy & Fuels
- ESI research areas
- Biology & Biochemistry