Antibiotic removal by agricultural waste biochars with different forms of iron oxide

Chen, Yue; Shi, Jing; Du, Qingyang; Zhang, Haowen; Cui, Yixin Kelly

doi:10.1039/c9ra01271k

Cited by 55 publications

(34 citation statements)

References 53 publications

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“…Subsequently, large concentrations of TCs have J o u r n a l P r e -p r o o f J o u r n a l P r e -p r o o f enormous research focus, because of its advantages of originating from a wide range of raw materials, low-cost preparation, being environmentally friendly and having adsorption properties (Ahmad et al, 2014;Enders et al, 2012). To date, BC has been used to adsorb antibiotics from wastewater very efficiently (Chen et al, 2019;Dai et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Feasibility study on a new pomelo peel derived biochar for tetracycline antibiotics removal in swine wastewater

Cheng

Ngo

Guo

et al. 2020

Science of The Total Environment

183

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Removal of tetracycline antibiotics (TCs) by biochar adsorption is emerging as a costeffective and environmentally friendly strategy. This study developed a novel pomelo peel derived biochar, which was prepared at 400 °C (BC-400) and 600 °C (BC-600) under nitrogen conditions. To enhance the adsorption capacity, BC-400 was further activated by KOH at 600 °C with a KOH: BC-400 ratio of 4:1. The activated biochar (BC-KOH) displayed a much larger surface area (2457.37 m 2 /g) and total pore volume (1.14 cm 3 /g) than BC-400 and BC-600. High adsorption capacity of BC-KOH was achieved for removing tetracycline (476.19 mg/g), oxytetracycline (407.5 mg/g) and chlortetracycline (555.56 mg/g) simultaneously at 313.15 K, which was comparable with other biochars derived from agricultural wastes reported previously. The adsorption data could be fitted by the pseudosecond-order kinetic model and Langmuir isotherm model successfully. The initial solution pH indicated the potential influence of TCs adsorption capacity on BC-KOH. These results suggest that pore filling, electrostatic interaction and π-π interactions between the adsorbent and adsorbate may constitute the main adsorption mechanism. BC-KOH can be used as a potential adsorbent for removing TCs from swine wastewater effectively, cheaply and in an environmentally friendly way.

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Section: Introductionmentioning

confidence: 99%

Feasibility study on a new pomelo peel derived biochar for tetracycline antibiotics removal in swine wastewater

Cheng

Ngo

Guo

et al. 2020

Science of The Total Environment

183

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“…Adsorbed nanoparticles may have formed clusters on the solid. Besides silver nanoparticles, biochar was also used in the removal of other contaminants, e.g., heavy metals [ 28 , 32 , 33 ], dyes [ 34 , 35 ], gold nanoparticles [ 10 ], antibiotics [ 36 , 37 ], and PAH [ 38 , 39 ].…”

Section: Resultsmentioning

confidence: 99%

Purification of Aqueous Media by Biochars: Feedstock Type Effect on Silver Nanoparticles Removal

et al. 2020

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Due to the harmful effects of nanoparticles in the environment, their effective removal from aqueous media is of great importance. This paper described the research on the silver nanoparticles (Ag-NPs) sorption on biochars obtained from different feedstock types. The sorbents were produced through pyrolysis (double-barrel method) of the vineyard (BV), paulownia tree (BP), and tobacco (BT). BV exhibited the highest specific surface area, porosity, value of variable surface charge, and content of surface acidic functional groups among the used biochars. The pseudo-second order model best described the obtained adsorption kinetics, whereas the Freundlich model accounted for the registered adsorption data. The Ag-NPs removal was highly efficient in the case of BV, especially in the nanoparticle concentration range 50–500 mg/L. Thus, this biochar can be considered as an ecofriendly, effective, low-cost organic adsorbent, potentially used in the aqueous media purification.

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“…Chen et al [195] studied the effect of the type of synthesis of BC composites with iron oxides on their adsorption ability towards TC and levofloxacin (LEV). The synthesis of the BC composites involved impregnation of the feedstock with iron salt before pyrolysis (IP-BCFe)…”

Section: Biochar-metal Compositesmentioning

confidence: 99%

Engineered biochar – A sustainable solution for the removal of antibiotics from water

Krasucka

Pan

et al. 2021

Chemical Engineering Journal

254

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Antibiotic contamination and the spread of antimicrobial resistant bacteria are global environmental issues. Given the growing consumption of antibiotics, it is crucial to reduce their presence in the environment. Adsorption is one of the most efficient methods for removing contaminants from water and wastewater. For this process to be effective, it is of key importance to identify adsorption mechanisms that allow an efficient and selective adsorbent to be chosen.Carbon-based materials (including activated carbon, biochar and black carbon) are typically used for the adsorptive removal of antibiotics. To enhance the efficiency of adsorption of pharmaceuticals, engineered biochars (physically, chemically and biologically modified biochar) and their composites have attracted increasing interests. Biochar-based sorbents can be produced from various feedstocks, including waste products. The use of "green", low cost or sustainable biochar for contaminant sorption yields economic and environmental benefits.Moreover, this is in line with global trends in creating a circular economy and sustainable development. This paper collates the most recent data on the consumption of antibiotics, their related environmental contamination, and their removal using biochar-based materials. Special attention is paid to the newly emerging approaches of biochar modification and biochar composites in relation to the antibiotic removal from water.

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Antibiotic removal by agricultural waste biochars with different forms of iron oxide

Abstract: The possible adsorption mechanisms.

Cited by 55 publications

References 53 publications

Feasibility study on a new pomelo peel derived biochar for tetracycline antibiotics removal in swine wastewater

Feasibility study on a new pomelo peel derived biochar for tetracycline antibiotics removal in swine wastewater

Purification of Aqueous Media by Biochars: Feedstock Type Effect on Silver Nanoparticles Removal

Engineered biochar – A sustainable solution for the removal of antibiotics from water

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