Aarhus University Seal / Aarhus Universitets segl

Mathias Neumann Andersen

Mechanism of orthophosphate (PO4-P) adsorption onto different biochars

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Mechanism of orthophosphate (PO4-P) adsorption onto different biochars. / Eduah, Joseph Osafo; Nartey, Eric Kwesi; Abekoe, Mark Kofi; Henriksen, Stephan Weck; Andersen, Mathias Neumann.

In: Environmental Technology and Innovation, Vol. 17, 100572, 2020.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Eduah, JO, Nartey, EK, Abekoe, MK, Henriksen, SW & Andersen, MN 2020, 'Mechanism of orthophosphate (PO4-P) adsorption onto different biochars', Environmental Technology and Innovation, vol. 17, 100572. https://doi.org/10.1016/j.eti.2019.100572

APA

Eduah, J. O., Nartey, E. K., Abekoe, M. K., Henriksen, S. W., & Andersen, M. N. (2020). Mechanism of orthophosphate (PO4-P) adsorption onto different biochars. Environmental Technology and Innovation, 17, [100572]. https://doi.org/10.1016/j.eti.2019.100572

CBE

Eduah JO, Nartey EK, Abekoe MK, Henriksen SW, Andersen MN. 2020. Mechanism of orthophosphate (PO4-P) adsorption onto different biochars. Environmental Technology and Innovation. 17:Article 100572. https://doi.org/10.1016/j.eti.2019.100572

MLA

Eduah, Joseph Osafo et al. "Mechanism of orthophosphate (PO4-P) adsorption onto different biochars". Environmental Technology and Innovation. 2020. 17. https://doi.org/10.1016/j.eti.2019.100572

Vancouver

Eduah JO, Nartey EK, Abekoe MK, Henriksen SW, Andersen MN. Mechanism of orthophosphate (PO4-P) adsorption onto different biochars. Environmental Technology and Innovation. 2020;17. 100572. https://doi.org/10.1016/j.eti.2019.100572

Author

Eduah, Joseph Osafo ; Nartey, Eric Kwesi ; Abekoe, Mark Kofi ; Henriksen, Stephan Weck ; Andersen, Mathias Neumann. / Mechanism of orthophosphate (PO4-P) adsorption onto different biochars. In: Environmental Technology and Innovation. 2020 ; Vol. 17.

Bibtex

@article{f659bf284c1d4e509cafc086ee7754a4,
title = "Mechanism of orthophosphate (PO4-P) adsorption onto different biochars",
abstract = "The adsorption mechanisms of phosphate (PO4-P) onto cocoa pod husk (CP), corn cob (CC), rice husk (RH) and palm kernel shell (PK) biochar pyrolyzed at 300 °C and 650 °C were investigated. A series of batch experiments were undertaken to assess the effects of contact time and pH. Results show that PO4-P adsorption equilibria for the biochar types was within 6–15 h, being rapid in the 300 °C-biochar types. The equilibrium pH for maximum PO4-P adsorption varied among biochar types, ranging from of 2.6 to 4.8 and increasing with decreasing PO4-P adsorption. Pseudo-second-order and Elovich models explained the adsorption data well indicating a chemisorption process on heterogeneous biochar surface. PO4-P adsorption was controlled initially by intraparticle diffusion and subsequently by chemisorption. Per the properties of the biochars (FTIR and elemental composition) and pH (equilibrium pH and ΔpH), PO4–P was adsorbed through electrostatic attraction, surface precipitation and ligand exchange, and the relative importance of these processes differed among the biochar types. Biochar types (PK300, PK650, CP300, CP650, RH650 and CC650) that adsorbed PO4-P through surface precipitation and ligand exchange reactions can be used to remove PO4-P from wastewater since PO4-P is strongly adsorbed, controlling PO4-P enrichment of water bodies.",
keywords = "Adsorption mechanism, Biochar, Models, Phosphate",
author = "Eduah, {Joseph Osafo} and Nartey, {Eric Kwesi} and Abekoe, {Mark Kofi} and Henriksen, {Stephan Weck} and Andersen, {Mathias Neumann}",
year = "2020",
doi = "10.1016/j.eti.2019.100572",
language = "English",
volume = "17",
journal = "Environmental Technology & Innovation",
issn = "2352-1864",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Mechanism of orthophosphate (PO4-P) adsorption onto different biochars

AU - Eduah, Joseph Osafo

AU - Nartey, Eric Kwesi

AU - Abekoe, Mark Kofi

AU - Henriksen, Stephan Weck

AU - Andersen, Mathias Neumann

PY - 2020

Y1 - 2020

N2 - The adsorption mechanisms of phosphate (PO4-P) onto cocoa pod husk (CP), corn cob (CC), rice husk (RH) and palm kernel shell (PK) biochar pyrolyzed at 300 °C and 650 °C were investigated. A series of batch experiments were undertaken to assess the effects of contact time and pH. Results show that PO4-P adsorption equilibria for the biochar types was within 6–15 h, being rapid in the 300 °C-biochar types. The equilibrium pH for maximum PO4-P adsorption varied among biochar types, ranging from of 2.6 to 4.8 and increasing with decreasing PO4-P adsorption. Pseudo-second-order and Elovich models explained the adsorption data well indicating a chemisorption process on heterogeneous biochar surface. PO4-P adsorption was controlled initially by intraparticle diffusion and subsequently by chemisorption. Per the properties of the biochars (FTIR and elemental composition) and pH (equilibrium pH and ΔpH), PO4–P was adsorbed through electrostatic attraction, surface precipitation and ligand exchange, and the relative importance of these processes differed among the biochar types. Biochar types (PK300, PK650, CP300, CP650, RH650 and CC650) that adsorbed PO4-P through surface precipitation and ligand exchange reactions can be used to remove PO4-P from wastewater since PO4-P is strongly adsorbed, controlling PO4-P enrichment of water bodies.

AB - The adsorption mechanisms of phosphate (PO4-P) onto cocoa pod husk (CP), corn cob (CC), rice husk (RH) and palm kernel shell (PK) biochar pyrolyzed at 300 °C and 650 °C were investigated. A series of batch experiments were undertaken to assess the effects of contact time and pH. Results show that PO4-P adsorption equilibria for the biochar types was within 6–15 h, being rapid in the 300 °C-biochar types. The equilibrium pH for maximum PO4-P adsorption varied among biochar types, ranging from of 2.6 to 4.8 and increasing with decreasing PO4-P adsorption. Pseudo-second-order and Elovich models explained the adsorption data well indicating a chemisorption process on heterogeneous biochar surface. PO4-P adsorption was controlled initially by intraparticle diffusion and subsequently by chemisorption. Per the properties of the biochars (FTIR and elemental composition) and pH (equilibrium pH and ΔpH), PO4–P was adsorbed through electrostatic attraction, surface precipitation and ligand exchange, and the relative importance of these processes differed among the biochar types. Biochar types (PK300, PK650, CP300, CP650, RH650 and CC650) that adsorbed PO4-P through surface precipitation and ligand exchange reactions can be used to remove PO4-P from wastewater since PO4-P is strongly adsorbed, controlling PO4-P enrichment of water bodies.

KW - Adsorption mechanism

KW - Biochar

KW - Models

KW - Phosphate

UR - http://www.scopus.com/inward/record.url?scp=85076361299&partnerID=8YFLogxK

U2 - 10.1016/j.eti.2019.100572

DO - 10.1016/j.eti.2019.100572

M3 - Journal article

AN - SCOPUS:85076361299

VL - 17

JO - Environmental Technology & Innovation

JF - Environmental Technology & Innovation

SN - 2352-1864

M1 - 100572

ER -