Author
Listed:
- Shefali Aktar
(Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
Department of Biochemistry and Molecular Biology, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh)
- Md Afzal Hossain
(Department of Fisheries Management, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh)
- Gabriel Gasco
(Department of Agricultural Production, Universidad Politécnica de Madrid, Ciudad Universitaria, 28040 Madrid, Spain)
- Ana Mendez
(Department of Geological and Mining Engineering, Universidad Politécnica de Madrid, 28040 Madrid, Spain)
- Cicero Celio de Figueiredo
(Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília 04508, DF, Brazil)
- Kalpit Shah
(Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia)
- Jorge Paz-Ferreiro
(Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia)
Abstract
Phosphorus (P) is an essential macronutrient for plants. The focus of this work is to recover P from biosolids and their derived biochar. The effect of three different pyrolysis temperatures (400 °C, 500 °C, and 600 °C) and two carrier gases (CO 2 and N 2 ) on P fractionation and the speciation of P on biochars produced from two biosolids were investigated. The Hedley chemical sequential extraction method and 31 P liquid NMR were used for P characterization and quantification. Higher pyrolysis temperatures increased P fixation and decreased short-term P bioavailability. Carrier gas had also significant effects on P fractionation in the biochars. Biochar produced in a CO 2 environment had slightly higher water-soluble P, NaHCO 3 -P i , NaOH-P i , and residual P than in biochar prepared in a N 2 environment, while HCl-P showed the opposite trend. Additionally, the predominant molecular configuration of P was present in the inorganic form identified by 31 P liquid NMR spectra, while organic P transformed into inorganic P with increasing pyrolysis temperature.
Suggested Citation
Shefali Aktar & Md Afzal Hossain & Gabriel Gasco & Ana Mendez & Cicero Celio de Figueiredo & Kalpit Shah & Jorge Paz-Ferreiro, 2024.
"Effects of Temperature and Carrier Gas on Phosphorus Transformation in Biosolids Biochar,"
Land, MDPI, vol. 13(12), pages 1-13, December.
Handle:
RePEc:gam:jlands:v:13:y:2024:i:12:p:2132-:d:1539548
Download full text from publisher
Corrections
All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jlands:v:13:y:2024:i:12:p:2132-:d:1539548. See general information about how to correct material in RePEc.
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
We have no bibliographic references for this item. You can help adding them by using this form .
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .
Please note that corrections may take a couple of weeks to filter through
the various RePEc services.