Competitive sorption affinity of sulfonamides and chloramphenicol antibiotics toward functionalized biochar for water and wastewater treatment

Ahmed, MB; Zhou, JL; Ngo, HH; Guo, W; Johir, MAH; Belhaj, D

Competitive sorption affinity of sulfonamides and chloramphenicol antibiotics toward functionalized biochar for water and wastewater treatment

Ahmed, MB

Zhou, JL

Ngo, HH

Guo, W

Johir, MAH

Belhaj, D

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2017, 238 pp. 306 - 312
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Ahmed, MB https://orcid.org/0000-0003-4756-595X	en_US
dc.contributor.author	Zhou, JL https://orcid.org/0000-0003-1393-1608	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Johir, MAH https://orcid.org/0000-0001-6222-6943	en_US
dc.contributor.author	Belhaj, D	en_US
dc.date.available	2020-05-25T19:09:11Z
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	Bioresource Technology, 2017, 238 pp. 306 - 312	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/93335
dc.description.abstract	© 2017 Elsevier Ltd Competitive sorption of sulfamethazine (SMT), sulfamethoxazole (SMX), sulfathiazole (STZ) and chloramphenicol (CP) toward functionalized biochar (fBC) was highly pH dependent with maximum sorption at pH ∼4.0–4.25. Equilibrium data were well represented by the Langmuir and Freundlich models in the order STZ > SMX > CP > SMT. Kinetics data were slightly better fitted by the pseudo second-order model than pseudo first-order and intra-particle-diffusion models. Maximum sorptive interactions occurred at pH 4.0–4.25 through H-bonds formations for neutral sulfonamides species and through negative charge assisted H-bond (CAHB) formation for CP, in addition to π-π electron-donor-acceptor (EDA) interactions. EDA was the main mechanism for the sorption of positive sulfonamides species and CP at pH < 2.0. Sorption of negative sulfonamides species and CP at pH > 7.0 was regulated by H-bond formation and proton exchange with water by forming CAHB, respectively. The results suggested fBC to be highly efficient in removing antibiotics mixture.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2017.04.042	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Charcoal	en_US
dc.subject.mesh	Water	en_US
dc.subject.mesh	Chloramphenicol	en_US
dc.subject.mesh	Sulfonamides	en_US
dc.subject.mesh	Anti-Bacterial Agents	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Kinetics	en_US
dc.subject.mesh	Adsorption	en_US
dc.subject.mesh	Hydrogen-Ion Concentration	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Competitive sorption affinity of sulfonamides and chloramphenicol antibiotics toward functionalized biochar for water and wastewater treatment	en_US
dc.type	Journal Article
utslib.citation.volume	238	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
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/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	238	en_US

Abstract:

© 2017 Elsevier Ltd Competitive sorption of sulfamethazine (SMT), sulfamethoxazole (SMX), sulfathiazole (STZ) and chloramphenicol (CP) toward functionalized biochar (fBC) was highly pH dependent with maximum sorption at pH ∼4.0–4.25. Equilibrium data were well represented by the Langmuir and Freundlich models in the order STZ > SMX > CP > SMT. Kinetics data were slightly better fitted by the pseudo second-order model than pseudo first-order and intra-particle-diffusion models. Maximum sorptive interactions occurred at pH 4.0–4.25 through H-bonds formations for neutral sulfonamides species and through negative charge assisted H-bond (CAHB) formation for CP, in addition to π-π electron-donor-acceptor (EDA) interactions. EDA was the main mechanism for the sorption of positive sulfonamides species and CP at pH < 2.0. Sorption of negative sulfonamides species and CP at pH > 7.0 was regulated by H-bond formation and proton exchange with water by forming CAHB, respectively. The results suggested fBC to be highly efficient in removing antibiotics mixture.

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http://hdl.handle.net/10453/93335