Removal of Antibiotics by Biochars: A Critical Review

Antibiotics are pharmaceuticals that are used to treat bacterial infections in humans and animals, and they are also used as growth promoters in livestock production. These activities lead to an alarming accumulation of antibiotics in aquatic environments, resulting in selection pressure for antibio...

Full description

Bibliographic Details
Main Authors: Umut Sen, Bruno Esteves, Terencio Aguiar, Helena Pereira
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/21/11963
_version_ 1797632121353797632
author Umut Sen
Bruno Esteves
Terencio Aguiar
Helena Pereira
author_facet Umut Sen
Bruno Esteves
Terencio Aguiar
Helena Pereira
author_sort Umut Sen
collection DOAJ
description Antibiotics are pharmaceuticals that are used to treat bacterial infections in humans and animals, and they are also used as growth promoters in livestock production. These activities lead to an alarming accumulation of antibiotics in aquatic environments, resulting in selection pressure for antibiotic resistance. Given that it is impractical to completely avoid the use of antibiotics, addressing the removal of antibiotics from the environment has become an important challenge. Adsorption methods and adsorbents have received particular attention because adsorption is highly efficient in the removal of low-concentration chemicals. Among the different adsorbents, biochars have shown promise for antibiotic removal, owing to their low cost and efficiency as well as their potential for modification to further increase their adsorption capacity. This review attempts to analyze the surface properties and ash contents of different biochars and to critically discuss the knowledge gaps in antibiotic adsorption. A total of 184 articles on antibiotic properties, adsorption of antibiotics, and biochar properties were reviewed, with a focus on the last 12 years. Antibiotic adsorption by pristine biochars and modified biochars was critically reviewed. Recommendations are provided for the adsorption of different antibiotic classes by biochars.
first_indexed 2024-03-11T11:33:24Z
format Article
id doaj.art-2b45b785f69d499f83c96297a52f7d0f
institution Directory Open Access Journal
issn 2076-3417
language English
last_indexed 2024-03-11T11:33:24Z
publishDate 2023-11-01
publisher MDPI AG
record_format Article
series Applied Sciences
spelling doaj.art-2b45b785f69d499f83c96297a52f7d0f2023-11-10T14:59:19ZengMDPI AGApplied Sciences2076-34172023-11-0113211196310.3390/app132111963Removal of Antibiotics by Biochars: A Critical ReviewUmut Sen0Bruno Esteves1Terencio Aguiar2Helena Pereira3Centro de Estudos Florestais, Laboratório Associado TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisbon, PortugalCERNAS Research Centre, Polytechnic Institute of Viseu, 3504-510 Viseu, PortugalPolytechnic School, Environmental Engineering Department, Federal University of Bahia (UFBA), Salvador 40210-630, Bahia, BrazilCentro de Estudos Florestais, Laboratório Associado TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisbon, PortugalAntibiotics are pharmaceuticals that are used to treat bacterial infections in humans and animals, and they are also used as growth promoters in livestock production. These activities lead to an alarming accumulation of antibiotics in aquatic environments, resulting in selection pressure for antibiotic resistance. Given that it is impractical to completely avoid the use of antibiotics, addressing the removal of antibiotics from the environment has become an important challenge. Adsorption methods and adsorbents have received particular attention because adsorption is highly efficient in the removal of low-concentration chemicals. Among the different adsorbents, biochars have shown promise for antibiotic removal, owing to their low cost and efficiency as well as their potential for modification to further increase their adsorption capacity. This review attempts to analyze the surface properties and ash contents of different biochars and to critically discuss the knowledge gaps in antibiotic adsorption. A total of 184 articles on antibiotic properties, adsorption of antibiotics, and biochar properties were reviewed, with a focus on the last 12 years. Antibiotic adsorption by pristine biochars and modified biochars was critically reviewed. Recommendations are provided for the adsorption of different antibiotic classes by biochars.https://www.mdpi.com/2076-3417/13/21/11963antibioticsbiochartetracyclinesurface areaash content
spellingShingle Umut Sen
Bruno Esteves
Terencio Aguiar
Helena Pereira
Removal of Antibiotics by Biochars: A Critical Review
Applied Sciences
antibiotics
biochar
tetracycline
surface area
ash content
title Removal of Antibiotics by Biochars: A Critical Review
title_full Removal of Antibiotics by Biochars: A Critical Review
title_fullStr Removal of Antibiotics by Biochars: A Critical Review
title_full_unstemmed Removal of Antibiotics by Biochars: A Critical Review
title_short Removal of Antibiotics by Biochars: A Critical Review
title_sort removal of antibiotics by biochars a critical review
topic antibiotics
biochar
tetracycline
surface area
ash content
url https://www.mdpi.com/2076-3417/13/21/11963
work_keys_str_mv AT umutsen removalofantibioticsbybiocharsacriticalreview
AT brunoesteves removalofantibioticsbybiocharsacriticalreview
AT terencioaguiar removalofantibioticsbybiocharsacriticalreview
AT helenapereira removalofantibioticsbybiocharsacriticalreview