Adsorption of steroid micropollutants on polymer-based spherical activated carbon (PBSAC)

Tagliavini, Matteo; Camargo, Fábio Engel de; Weidler, Peter G.; Scherer, Torsten; Schäfer, A.I.

doi:10.1016/j.jhazmat.2017.03.036

Cited by 75 publications

(22 citation statements)

References 42 publications

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“…Carbon-based adsorbents, such as activated carbon, carbon nanotubes, carbon black, carbon fiber, etc, are usually considered as the best adsorbents, which have been used for more than 2000 years in the adsorption process (Tagliavini et al 2017). Activated carbon is one of the most widely used materials due to its novel microporous structure and specific surface area.…”

Section: Introductionmentioning

confidence: 99%

Efficient removal of acetic acid by a regenerable resin-based spherical activated carbon

Sun

Zhao

et al. 2021

Water Science and Technology

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Carboxylic acids are the main pollutant of industrial wastewater during the Advanced Oxidation Process (AOPs). In this study, we here study a resin-based spherical activated carbon (RSAC, AF5) as an adsorbent and use acetic acid as a model substrate for adsorption investigation. The pH = 3, temperature = 298 K were fixed by batch technique. The pseudo-second-order kinetic model, the intraparticle and external models are fitted well, and it was found that the adsorption of acetic acid onto AF5 was controlled by liquid film diffusion. Freundlich model indicates the adsorption process is heterogeneous multi-molecular layer adsorption on the surface. AF5 shows good regenerative ability; the recovery rate of adsorption capacity is ∼88% after 5 cycles. And COD adsorption removal rate can be maintained 100% for over 35 h in an actual AOPs effluent, and it can be eluted for 100% after 8 h by 0.8wt% NaOH. The characterizations, including XRF, XRD, TG/DSC,FTIR, SEM and N2 adsorption, show that the excellent adsorption performance is mainly due to the microporous structure and large specific surface area (1,512.88 m2/g), the adsorption mechanism mainly including pore filling effect and electrostatic attraction. After five adsorption-recycles, AF5's pore characteristic does not change significantly. This study provided a scientific basis for the wastewater standard discharge process of AOPs coupled adsorption.

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Section: Introductionmentioning

confidence: 99%

Efficient removal of acetic acid by a regenerable resin-based spherical activated carbon

Sun

Zhao

et al. 2021

Water Science and Technology

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Section: Contemporary Techniques For the Removal Of Edcs From Various Water Sourcesmentioning

confidence: 99%

“…This signifies that higher adsorption energy and temperature is required, which is usually in the range between 200 and 400 kJ/mol [161]. Distinctly, single layer adsorbate occurs in chemisorption, and the mechanism is influenced by the aforementioned treatment factors [163]. Adsorption technique for the removal of EDCs from various water sources using AC has received extensive efforts, which have yielded considerable progress in the last two decades [164][165][166].…”

Section: Removal Of Endocrine-disrupting Compounds Via Adsorption Processmentioning

confidence: 99%

Contemporary Techniques for Remediating Endocrine-Disrupting Compounds in Various Water Sources: Advances in Treatment Methods and Their Limitations

et al. 2021

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Over the years, the persistent occurrence of superfluous endocrine-disrupting compounds (EDCs) (sub µg L−1) in water has led to serious health disorders in human and aquatic lives, as well as undermined the water quality. At present, there are no generally accepted regulatory discharge limits for the EDCs to avert their possible negative impacts. Moreover, the conventional treatment processes have reportedly failed to remove the persistent EDC pollutants, and this has led researchers to develop alternative treatment methods. Comprehensive information on the recent advances in the existing novel treatment processes and their peculiar limitations is still lacking. In this regard, the various treatment methods for the removal of EDCs are critically studied and reported in this paper. Initially, the occurrences of the EDCs and their attributed effects on humans, aquatic life, and wildlife are systematically reviewed, as well as the applied treatments. The most noticeable advances in the treatment methods include adsorption, catalytic degradation, ozonation, membrane separation, and advanced oxidation processes (AOP), as well as hybrid processes. The recent advances in the treatment technologies available for the elimination of EDCs from various water resources alongside with their associated drawbacks are discussed critically. Besides, the application of hybrid adsorption–membrane treatment using several novel nano-precursors is carefully reviewed. The operating factors influencing the EDCs’ remediations via adsorption is also briefly examined. Interestingly, research findings have indicated that some of the contemporary techniques could achieve more than 99% EDCs removal.

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“…The environmental deterioration, mainly due to global warming and waste discharge, is the highest priority issue for the modern society. [1][2][3] Global warming is namely due to the CO 2 release in the atmosphere. On the other side, the discharge of wastewater from the agriculture and medical industries pollute the surface and underground waters with antibiotics and other harmful chemicals which threaten animals, plants and human health through direct or indirect exposure.…”

Section: Introductionmentioning

confidence: 99%

“…28, 29 Tagliavini et al studied the mechanisms of steroid micropollutants removal with polymerbased spherical activated carbon; 2 and Zeng et al conducted water evaporation and oil sorption on hydrophobic hollow carbon beads by phase inversion method.…”

Section: Introductionmentioning

confidence: 99%

Carbon beads with a well-defined pore structure derived from ion-exchange resin beads

Haw

Yan

et al. 2019

J. Mater. Chem. A

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Adsorption of steroid micropollutants on polymer-based spherical activated carbon (PBSAC)

Cited by 75 publications

References 42 publications

Efficient removal of acetic acid by a regenerable resin-based spherical activated carbon

Efficient removal of acetic acid by a regenerable resin-based spherical activated carbon

Contemporary Techniques for Remediating Endocrine-Disrupting Compounds in Various Water Sources: Advances in Treatment Methods and Their Limitations

Carbon beads with a well-defined pore structure derived from ion-exchange resin beads

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