The biosorptive uptake of enrofloxacin from synthetically produced contaminated water by tamarind seed derived activated carbon

Samanta, Sucharita; Chowdhury, Somnath; DasSharma, Debasis; Halder, Gopinath

doi:10.1039/c9ra08995k

Cited by 26 publications

(11 citation statements)

References 29 publications

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“…4), ACT had an adsorption capacity close to 800 cm 3 g −1 of nitrogen, while ACHT had a lower adsorption capacity, with a value close to 400 cm 3 g −1 . The surface area values were higher than those obtained by Jamion et al 71 and close to the values found by Samanta et al, 72 who reported surface areas of 594 and 962 m 2 g −1 , respectively, when producing activated carbon from raw tamarind seed bran using the same activating agent (phosphoric acid).…”

Section: Characterization Of the Carbonssupporting

confidence: 83%

Synthesis of activated carbon from hydrothermally carbonized tamarind seeds for lipase immobilization: characterization and application in aroma ester synthesis

Gonçalves

Gandolfi

Bonomo

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: This study aimed to evaluate the effect of hydrothermal carbonization on the activated carbons properties of tamarind seeds, which were used as a support in porcine pancreatic lipase (PPL) immobilization, and to evaluate the biocatalyst in the butyl butyrate synthesis. RESULTS:The activated carbon from hydrochar (ACHT) had oxygen functional groups content about 32.5% higher and a lower point of zero charge (4.42) when compared to those obtained from crude bran (ACT). Differences in textural properties were also observed, with an average pore diameter of 3.20 and 6.46 nm for ACHT and ACT, respectively. The optimal immobilization pH was 5.0, resulting in enzyme loading of 71.8 ± 1.42 mg.g 1 and 53.03 ± 0.31 mg•g −1 , and in a hydrolytic activity of 222.47 ± 2.80 U•g −1 and 257.18 ± 7.31 U•g −1 for ACT and ACHT, respectively. The addition of Triton X-100 0.025 w•v −1 to the immobilization buffer led to an increase in ∼7% of the hydrolytic activity. The PPL immobilized in pH 5.0 was used in the butyl butyrate synthesis, using a mixture of butanol (240 mmol L −1 ) and butyric acid (120 mmol L −1 ), with an esterification yield of ±83% after 4 h of reaction at 40 °C. CONCLUSION:The PPL immobilized on ACHT showed a small decrease in activity over time, with a residual esterification yield of 84% after 4 cycles of reuse. The present results suggest that the supported biocatalyst has the potential to be used in aqueous and organic media, such as hydrolytic lipid reactions and aroma synthesis mostly used in the food industry.

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Section: Characterization Of the Carbonssupporting

confidence: 83%

Synthesis of activated carbon from hydrothermally carbonized tamarind seeds for lipase immobilization: characterization and application in aroma ester synthesis

Gonçalves

Gandolfi

Bonomo

et al. 2021

J of Chemical Tech & Biotech

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Section: Resultsmentioning

confidence: 99%

“…While the isotherm analysis is important in defining the adsorption process and nature of the adsorbent, the kinetic analysis determines the rate of adsorbate that is adsorbed onto the PKSAC and their mechanistic behavior. Samanta et al 28 reported that the kinetic analysis is important to identify design information, such as process time per run and equipment sizing. Sarker et al 29 further elaborated that the adsorbent that has slow kinetics despite the fact that having a high adsorption capacity is not preferable to be applied at an industrial scale, since a long residence time in an adsorption column (i.e., fixed bed) will be required.…”

Section: Kinetic Analysismentioning

confidence: 99%

The insights of pet cokes/palm kernel shell activated carbon as CO₂ adsorbent: equilibrium, kinetics, thermodynamics, and regeneration performance

Rashidi

Yusup

2022

J of Chemical Tech & Biotech

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BACKGROUND: Over the years, activated carbon has been widely used for environmental applications, including liquid or gas phase applications. However, there are many hurdles for researchers in the activated carbon field to overcome when it comes to non-renewable materials, the utilization of individual precursors, and the complex multistep procedures of activated carbon synthesis. Therefore, in this study, the facile mechanochemical potassium carbonate (K 2 CO 3 ) activation of blended precursors palm kernel shell and petroleum cokewas investigated in terms of the activated carbon yield and carbon dioxide (CO 2 ) adsorption capacity. RESULTS:The optimum configuration of the activated carbon production was found at temperature of 680°C, holding time of 60 min, and impregnation ratio of 1.75:1. The CO 2 adsorption data at 25-120°C was best represented by the Sips model with R 2 > 0.9999, where maximum CO 2 adsorption capacity (q max ) was within the range of 2.24-4.32 mmol/g. The kinetic analysis was well-represented by the pseudo-second order model due to the high R 2 and low sum of square of errors (ERRSQ) value. In terms of thermodynamic analysis, it showed that the CO 2 adsorption process was physical, exothermic, and spontaneous at lower temperature. CONCLUSION: Overall, the integration of agricultural and industrial waste to value-added activated carbon was feasible not only in reducing waste disposal problems but also in facilitating CO 2 mitigation.

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“…The rapidity of adsorption found was higher at the starting due to existing of the open and active sites on sorbent surfaces, present in lower dose, brought about faster diffusion of ENX molecules to the adsorbing sites. 13 In this experiment, the other parameters were kept unchanged. time was recorded to reach 16 h (Figure 5f).…”

Section: Impact Of Biosorbent Dosagementioning

confidence: 99%

Elucidating facile biosorptive eradication of enrofloxacin: Equilibrium, kinetics, reusability, cost estimation, and safe disposal

Sharma

Show

Barman

et al. 2023

Env Prog and Sustain Energy

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In the current investigation, superheated steam activated green coconut shell (Cocos nucifera) biochar (PAGCSB) has been used in sorptive expulsion of the pharmaceutical micro‐pollutant enrofloxacin (ENX) from water. Through a number of progressive studies in batch sorption process, the influence of some crucial parameters are evaluated toward efficacious remediation of ENX laden aqueous media by PAGCSB. The parameters studied are: contact time (5–20 h); mixing intensity (100–190 rpm); pH (1–9); initial ENX concentration (5–35 mg/L); temperature (15–40°C); and biosorbent dosage (2–5 g/L). The maximum ENX removal is 91.92% by using ENX initial concentration 20 mg/L; pH 7; temperature 30°C; biosorbent dose 4 g/L; stirring speed 150 rpm; and contact period 16 h. The repeated usability of spent biochar has been assessed and found to be 69.91% even after the fifth cycle. The pseudo‐second order kinetic model provided the best fit to the kinetic data. The Langmuir model showed the finest suit to the isotherm data. Adsorption capacity of the biosorbent was observed to be 2.32 mg/g. The current study on biosorptive riddance of ENX revealed a good level of randomness in the thermodynamic process which is found to be exothermic in nature. A wide‐scale utilization of the developed biosorbent has been well‐substantiated by the cost estimation. Finally, the safe disposal of spent biosorbent has been studied in accordance with the World Health Organization safety guidelines. Hence, superheated steam activated green coconut shell derived biochar could be a cost‐effective and competent sorbent material for ENX eradication from contaminated water.

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The biosorptive uptake of enrofloxacin from synthetically produced contaminated water by tamarind seed derived activated carbon

Abstract: The veterinary antibiotic enrofloxacin (ENR), an emerging contaminant, poses great concern due to its ubiquitous nature.

Cited by 26 publications

References 29 publications

Synthesis of activated carbon from hydrothermally carbonized tamarind seeds for lipase immobilization: characterization and application in aroma ester synthesis

Synthesis of activated carbon from hydrothermally carbonized tamarind seeds for lipase immobilization: characterization and application in aroma ester synthesis

The insights of pet cokes/palm kernel shell activated carbon as CO₂ adsorbent: equilibrium, kinetics, thermodynamics, and regeneration performance

Elucidating facile biosorptive eradication of enrofloxacin: Equilibrium, kinetics, reusability, cost estimation, and safe disposal

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The biosorptive uptake of enrofloxacin from synthetically produced contaminated water by tamarind seed derived activated carbon

Abstract: The veterinary antibiotic enrofloxacin (ENR), an emerging contaminant, poses great concern due to its ubiquitous nature.

Cited by 26 publications

References 29 publications

Synthesis of activated carbon from hydrothermally carbonized tamarind seeds for lipase immobilization: characterization and application in aroma ester synthesis

Synthesis of activated carbon from hydrothermally carbonized tamarind seeds for lipase immobilization: characterization and application in aroma ester synthesis

The insights of pet cokes/palm kernel shell activated carbon as CO2 adsorbent: equilibrium, kinetics, thermodynamics, and regeneration performance

Elucidating facile biosorptive eradication of enrofloxacin: Equilibrium, kinetics, reusability, cost estimation, and safe disposal

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The insights of pet cokes/palm kernel shell activated carbon as CO₂ adsorbent: equilibrium, kinetics, thermodynamics, and regeneration performance