Removal of selected pharmaceuticals from aqueous matrices with activated carbon under batch conditions

Varga, Margit; ELAbadsa, Mohammed; Tatár, Enikő; Mihucz, Victor G.

doi:10.1016/j.microc.2019.05.038

Cited by 29 publications

(4 citation statements)

References 32 publications

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“…The capability of AC to adsorb tetG was evaluated with the Freundlich isotherm model. The equation of this model is described as follows [32].…”

Section: Uptake Capacity Of Tetg On Acsmentioning

confidence: 99%

Fate and Behavior of Tetracycline Resistance Genes in Activated Carbon Adsorption

Anggreini,

Aurellya,

et al. 2024

JWARP

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The accessibility of tetracycline resistance gene (tetG) into the pores of activated carbon (AC), as well as the impact of the pore size distribution (PSD) of AC on the uptake capacity of tetG, were investigated using eight types of AC (four coal-based and four wood-based). AC showed the capability to admit tetG and the average reduction of tetG for coal-based and wood-based ACs at the AC dose of 1 g•L −1 was 3.12 log and 3.65 log, respectively. The uptake kinetic analysis showed that the uptake of the gene followed the pseudosecond-order kinetics reaction, and the uptake rate constant for the coalbased and wood-based ACs was in the range of 5.97 × 10 −12 -4.64 × 10 −9 and 7.02 × 10 −11 -1.59 × 10 −8 copies•mg −1 •min −1 , respectively. The uptake capacity analysis by fitting the obtained experiment data with the Freundlich isotherm model indicated that the uptake constant (K F ) values were 1.71 × 10 3 -8.00 × 10 9 (copies•g −1 ) 1−1/n for coal-based ACs and 7.00 × 10 8 -3.00 × 10 10 (copies•g −1 ) 1−1/n for wood-based ones. In addition, the correlation analysis between K F values and pore volume as well as pore surface at different pore size regions of ACs showed that relatively higher positive correlation was found for pores of 50 -100 Å, suggesting ACs with more pores in this size region can uptake more tetG. The findings of this study are valuable as reference for optimizing the adsorption process regarding antibiotic resistance-related concerns in drinking water treatment.

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“…The capability of AC to adsorb tetG was evaluated with the Freundlich isotherm model. The equation of this model is described as follows [32].…”

Section: Uptake Capacity Of Tetg On Acsmentioning

confidence: 99%

Fate and Behavior of Tetracycline Resistance Genes in Activated Carbon Adsorption

Anggreini,

Aurellya,

et al. 2024

JWARP

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“…The point of zero charge (PZC) of the different lignite samples was determined in 25 mL of 0.001, 0.01 and 0.1 mol/L NaCl solutions by applying the pH drift method cf. Varga et al (2019). Briefly, the pH of the samples was adjusted between 1 and 12 (n = 10) using proper amounts of NaOH or HCl solutions and the initial pH of the solutions was recorded.…”

Section: Determination Of Lignite Porosity and Point Of Zero Chargementioning

confidence: 99%

Optimization of Lignite Particle Size for Stabilization of Trivalent Chromium in Soils

Anemana

Óvári

Szegedi

et al. 2019

Soil and Sediment Contamination: An International Journal

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Stabilization capacity of 5% by weight lignite added in three particle size ranges (<0.5; 0.5-1.0 and 1.0-2.0 mm) to acidic (pH = 5.0) or calcareous (pH = 7.7) sandy soil samples of <2 mm grain size artificially contaminated with 375 mg/kg Cr(III) was assessed through fitfor-purpose leaching tests performed with CH 3 COOH, NH 2 OH·HCl and EDTA. About 90% and 60% of Cr(III) were immobilized in calcareous and acidic soils per se, respectively. Although the point of zero charge measurements (pH pZC ≈4.5) indicated that lignite could effectively bind positively charged Cr hydroxo complexes at the pH of the calcareous soil, the application of lignite is unnecessary due to the low solubility of these species. Although the acidic soil mobilizes Cr, the addition of lignite has been proven to stabilize it. The phytoavailable Cr fraction in the soils per se was about 10-25%. In spite of the mobilization of Cr by acidic soil, the phytoavailable Cr concentration decreased to about half when the lignite particle size was either 0.5-1.0 or 1.0-2.0 mm. Lignite was suitable for Cr stabilization in acidic soil in a close particle size range, ensuring the dispersibility needed to enhance efficient Cr transfer from the contaminated soil to the stabilizer.

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“…The aforementioned toxic contaminants are generally obstinate from being biodegraded in the conventional treatment plants, especially the pharmaceutical pollutants. As a result of their polarity and/or chemical persistence, they are able to easily bypass the wastewater treatment process and contaminate water reservoirs (Varga et al 2019). Antibiotics are among frequently detected pharmaceutical compounds even in surface water, which include ampicillin, chloramphenicol, quinolone, metronidazole, etc.…”

Section: Introductionmentioning

confidence: 99%

Chloramphenicol and methylene blue adsorption by modestly treated paper sewage sludge-based activated carbon

Aziz,

Hassan,

Ahmad

2023

Chem. Pap.

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Refractory and emerging contaminants have superfluously present in most Malaysia water bodies due to increasing trend of modern industrialized activities including textiles and pharmaceutical industries. These have impacted deleteriously on our environment and water systems. Hence, this study proposed a sustainable treatment method by using activated carbon prepared from freely available paper mills sewage sludge for removing chloramphenicol (CAP) drug and methylene blue (MB) dye. To the best of our knowledge, very limited study has been reported on this emerging chloramphenicol. Modest treatment of low-temperature carbonization assisted with short-activation time of microwave radiation had been used. Analysis of variance of central composite design (CCD) had resulted optimum conditions of 440W radiation power and 3 min activation time for optimum removals of 69.5% and 50.5% for CAP and MB dye, respectively. The surface area of paper mill sewage sludge activated carbon (PMSSAC) had dramatically improved from 1.14 to 412 m 2 /g. The SEM image had proven the effectiveness of microwave radiation treatment where more cavities and pores were observed on activated carbon for better adsorbate penetration. The Freundlich isotherm and Pseudo-second order appeared to best fit the kinetic data. Furthermore, high affinity of adsorbate towards the PMSSAC surface could be the plausible mechanism indicated by high amount of adsorption within initial stage of time. The high performance in CAP and MB removal by our PMSSAC system is promisingly anticipated to be good activated carbon treatment method for real application in industrialized wastewater system.

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Removal of selected pharmaceuticals from aqueous matrices with activated carbon under batch conditions

Cited by 29 publications

References 32 publications

Fate and Behavior of Tetracycline Resistance Genes in Activated Carbon Adsorption

Fate and Behavior of Tetracycline Resistance Genes in Activated Carbon Adsorption

Optimization of Lignite Particle Size for Stabilization of Trivalent Chromium in Soils

Chloramphenicol and methylene blue adsorption by modestly treated paper sewage sludge-based activated carbon

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