Comparison study on the ammonium adsorption of the biochars derived from different kinds of fruit peel.

Hu, X; Zhang, X; Ngo, HH; Guo, W; Wen, H; Li, C; Zhang, Y; Ma, C

Comparison study on the ammonium adsorption of the biochars derived from different kinds of fruit peel.

Hu, X Zhang, X Ngo, HH Guo, W

Wen, H Li, C Zhang, Y Ma, C

Permalink

Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Science of the Total Environment, 2020, 707, pp. 135544-135544
Issue Date:: 2020-03-10

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

The embargo period expires on 1 Mar 2022

Adobe PDF

Download Accepted Manuscript VersionAdobe PDF (1.13 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Hu, X
dc.contributor.author	Zhang, X
dc.contributor.author	Ngo, HH
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858
dc.contributor.author	Wen, H
dc.contributor.author	Li, C
dc.contributor.author	Zhang, Y
dc.contributor.author	Ma, C
dc.date.accessioned	2020-11-09T23:49:18Z
dc.date.available	2019-11-14
dc.date.available	2020-11-09T23:49:18Z
dc.date.issued	2020-03-10
dc.identifier.citation	Science of the Total Environment, 2020, 707, pp. 135544-135544
dc.identifier.issn	0048-9697
dc.identifier.issn	1879-1026
dc.identifier.uri	http://hdl.handle.net/10453/143863
dc.description.abstract	Application of biochars to remove inorganic nitrogen (NH4+, NO2-, NH3, NO, NO2, N2O) from wastewater and agricultural fields has gained a significant interest. This study aims to investigate the relationship between ammonium sorption and physicochemical properties of biochars derived from different kinds of fruit peel. Biochars from three species of fruit peel (orange, pineapple and pitaya) were prepared at 300, 400, 500 and 600 °C with the residence time of 2 h and 4 h. Their characteristics and sorption for ammonium was evaluated. The results show a clear effect of pyrolysis conditions on physicochemical properties of biochars, including elemental composition, functional groups and pH. The maximum NH4+ adsorption capacities were associated with biochars of orange peel (4.71 mg/g) and pineapple peel (5.60 mg/g) produced at 300 °C for 2 h. The maximum NH4+ adsorption capacity of the pitaya peel biochar produced at 400 °C for 2 h was 2.65 mg/g. For all feedstocks, biochars produced at low temperatures showed better NH4+ adsorption capacity. It was found that biochars had better adsorption efficiency on ammonium at a pH of 9. Adsorption kinetics of ammonium on biochars followed the pseudo-second-order kinetic model while Langmuir isotherm model could well simulate the adsorption behavior of ammonium on biochars. The adsorption mechanism of ammonium on biochars predominantly involved surface complexation, cation exchange and electrostatic attraction. Conclusively, the fruit peel-derived biochars can be used as an alternative to conventional sorbents in water treatment.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier
dc.relation.ispartof	Science of the Total Environment
dc.relation.isbasedon	10.1016/j.scitotenv.2019.135544
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Fruit
dc.subject.mesh	Charcoal
dc.subject.mesh	Ammonium Compounds
dc.subject.mesh	Adsorption
dc.subject.mesh	Adsorption
dc.subject.mesh	Ammonium Compounds
dc.subject.mesh	Charcoal
dc.subject.mesh	Fruit
dc.title	Comparison study on the ammonium adsorption of the biochars derived from different kinds of fruit peel.
dc.type	Journal Article
utslib.citation.volume	707
utslib.location.activity	Netherlands
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
pubs.consider-herdc	true
utslib.copyright.embargo	2022-03-01T00:00:00+1000Z
dc.date.updated	2020-11-09T23:49:14Z
pubs.publication-status	Published
pubs.volume	707

Abstract:

Application of biochars to remove inorganic nitrogen (NH4+, NO2-, NH3, NO, NO2, N2O) from wastewater and agricultural fields has gained a significant interest. This study aims to investigate the relationship between ammonium sorption and physicochemical properties of biochars derived from different kinds of fruit peel. Biochars from three species of fruit peel (orange, pineapple and pitaya) were prepared at 300, 400, 500 and 600 °C with the residence time of 2 h and 4 h. Their characteristics and sorption for ammonium was evaluated. The results show a clear effect of pyrolysis conditions on physicochemical properties of biochars, including elemental composition, functional groups and pH. The maximum NH4+ adsorption capacities were associated with biochars of orange peel (4.71 mg/g) and pineapple peel (5.60 mg/g) produced at 300 °C for 2 h. The maximum NH4+ adsorption capacity of the pitaya peel biochar produced at 400 °C for 2 h was 2.65 mg/g. For all feedstocks, biochars produced at low temperatures showed better NH4+ adsorption capacity. It was found that biochars had better adsorption efficiency on ammonium at a pH of 9. Adsorption kinetics of ammonium on biochars followed the pseudo-second-order kinetic model while Langmuir isotherm model could well simulate the adsorption behavior of ammonium on biochars. The adsorption mechanism of ammonium on biochars predominantly involved surface complexation, cation exchange and electrostatic attraction. Conclusively, the fruit peel-derived biochars can be used as an alternative to conventional sorbents in water treatment.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/143863