Adsorption characteristics of selected pharmaceuticals and an endocrine disrupting compound—Naproxen, carbamazepine and nonylphenol—on activated carbon

Yu, Zirui; Peldszus, Sigrid; Huck, Peter M.

doi:10.1016/j.watres.2008.02.020

Cited by 328 publications

(160 citation statements)

References 28 publications

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“…It has been reported that hydrophobic partitioning is more relevant at higher log D values, while non-hydrophobic interactions govern in case of compounds with low log D (Yu et al, 2008;De Ridder et al, 2010;Dickenson and Drewes, 2010). All six compounds presented in Figure 3 were of low hydrophobicity and, as expected, no particular correlation between their log D and extent of breakthrough could be ascertained (Figure 3).…”

Section: [Figure 3]supporting

confidence: 55%

“…This observation is in line with that of Vieno et al (2007) who reported higher affinity of the neutral pharmaceutical carbamazepine when compared to an ionic compound -naproxen. Yu et al (2008) also observed a more severe reduction in adsorption capacity for the acidic compound naproxen, compared to the neutral compound carbamazepine.…”

Section: [Figure 3]mentioning

confidence: 82%

“…This however, is not surprising, given the fact that the single-solute isotherms were obtained in ultrapure water (Milli-Q), and for analytical reasons the isotherms were obtained at equilibrium concentrations higher than that applied to the GAC column (Section 2.3). In fact, inaccuracies arising from a mismatch between equilibrium concentration and actual loading (Yu et al, 2008) and the effect of competition with bulk organics (Deegan et al, 2011;Zhang et al, 2011) have been previously documented. The fact that the MBR permeate concentration (i.e., feed to the GAC column) was not completely stable for individual compounds, and varied within a few thousands of ng/L between the compounds (Figure 3), may have been also responsible for such deviation.…”

Section: [Table 3] [Figure 4]mentioning

confidence: 99%

“…Granular activated carbon (GAC) adsorption has routinely been used as a tertiary treatment process in the water industry. The potential of GAC for the removal of pesticides and other emerging trace organic contaminants in drinking water treatment has been widely demonstrated (Yu et al, 2008;Kim et al, 2010;Deegan et al, 2011;Behera et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Coupling granular activated carbon adsorption with membrane bioreactor treatment for trace organic contaminant removal: Breakthrough behaviour of persistent and hydrophilic compounds

Nguyen

Hai

Kang

et al. 2013

Journal of Environmental Management

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Nghiem, L. D. (2013). Coupling granular activated carbon adsorption with membrane bioreactor treatment for trace organic contaminant removal: Breakthrough behaviour of persistent and hydrophilic compounds. Journal of Environmental Management, 119 173-181.Coupling granular activated carbon adsorption with membrane bioreactor treatment for trace organic contaminant removal: Breakthrough behaviour of persistent and hydrophilic compounds AbstractThis study investigated the removal of trace organic contaminants by a combined membrane bioreactorgranular activated carbon (MBR-GAC) system over a period of 196 days. Of the 22 compounds investigated here, all six hydrophilic compounds with electron-withdrawing functional groups (i.e., metronidazole, carbamazepine, ketoprofen, naproxen, fenoprop and diclofenac) exhibited very low removal efficiency by MBR-only treatment. GAC post-treatment initially complemented MBR treatment very well; however, a compound-specific gradual deterioration of the removal of the above-mentioned problematic compounds was noted. While a 20% breakthrough of all four negatively charged compounds namely ketoprofen, naproxen, fenoprop and diclofenac occurred within 1000-3000 bed volumes (BV), the same level of breakthrough of the two neutral compounds metronidazole and carbamazepine did not occur until 11,000 BV. Single-solute isotherm parameters did not demonstrate any discernible correlation individually with any of the parameters that may govern adsorption onto GAC, such as log D, number of hydrogen-bond donor/acceptor groups, dipole moment or aromaticity ratio of the compounds. The isotherm data, however, could differentiate the breakthrough behaviour between negatively charged and neutral trace organic contaminants. © 2013 Elsevier Ltd. AbstractThis study investigated the removal of trace organic contaminants by a combined membrane bioreactor -granular activated carbon (MBR-GAC) system over a period of 196 days. Of the 22 compounds investigated here, all six hydrophilic compounds with electronwithdrawing functional groups (i.e., metronidazole, carbamazepine, ketoprofen, naproxen, fenoprop and diclofenac) exhibited very low removal efficiency by MBR-only treatment. GAC post-treatment initially complemented MBR treatment very well; however, a compoundspecific gradual deterioration of the removal of the above-mentioned problematic compounds was noted. While a 20% breakthrough of all four negatively charged compounds namely ketoprofen, naproxen, fenoprop and diclofenac occurred within 1,000 -3,000 bed volumes (BV), the same level of breakthrough of the two neutral compounds metronidazole and carbamazepine did not occur until 11,000 BV. Single-solute isotherm parameters did not demonstrate any discernible correlation individually with any of the parameters that may govern adsorption onto GAC, such as log D, number of hydrogen-bond donor/acceptor groups, dipole moment or aromaticity ratio of the compounds. The isotherm data, however, could differentiate the breakthrough behavior between negatively ...

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Section: [Figure 3]supporting

confidence: 55%

Section: [Figure 3]mentioning

confidence: 82%

Section: [Table 3] [Figure 4]mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Coupling granular activated carbon adsorption with membrane bioreactor treatment for trace organic contaminant removal: Breakthrough behaviour of persistent and hydrophilic compounds

Nguyen

Hai

Kang

et al. 2013

Journal of Environmental Management

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“…Table 1. Physicochemical and pharmacological properties of carbamazepine (modified after [16,17] potential detrimental impacts on aquatic life and human health [1,2]. Because a large proportion of PhACs ends up in sewage via bodily excretion and indiscriminate disposal of unwanted/expired pharmaceuticals, disposal of untreated or ineffectively treated wastewater is considered a major source of their occurrence in environmental systems [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Carbamazepine as a Possible Anthropogenic Marker in Water: Occurrences, Toxicological Effects, Regulations and Removal by Wastewater Treatment Technologies

Hai

Yang

Asif

et al. 2018

Water

150

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Carbamazepine (CBZ), a pharmaceutical compound, has been proposed as an anthropogenic marker to assess water quality due to its persistence in conventional treatment plants and widespread presence in water bodies. This paper presents a comprehensive literature review on sources and occurrences of CBZ in water bodies, as well as toxicological effects and regulations of the drug. Given the documented side effects of CBZ on the human body when taken medicinally, its careful monitoring in water is recommended. CBZ residues in drinking water may provide a pathway to embryos and infants via intrauterine exposure or breast-feeding, which may cause congenital malformations and/or neurodevelopmental problems over long term exposure. An in-depth technical assessment of the conventional and advanced treatment technologies revealed the inadequacy of the standalone technologies. Compared to conventional activated sludge and membrane bioreactor processes, effective removal of CBZ can be achieved by nanofiltration and reverse osmosis membranes. However, recent studies have revealed that harsh chemical cleaning, as required to mitigate membrane fouling, can often reduce the long-term removal efficiency. Furthermore, despite the efficient performance of activated carbon adsorption and advanced oxidation processes, a few challenges such as cost of chemicals and regeneration of activated carbon need to be carefully considered. The limitations of the individual technologies point to the advantages of combined and hybrid systems, namely, membrane bioreactor coupled with nanofiltration, adsorption or advanced oxidation process.

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2010

Wastewater Microbiology

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Adsorption characteristics of selected pharmaceuticals and an endocrine disrupting compound—Naproxen, carbamazepine and nonylphenol—on activated carbon

Cited by 328 publications

References 28 publications

Coupling granular activated carbon adsorption with membrane bioreactor treatment for trace organic contaminant removal: Breakthrough behaviour of persistent and hydrophilic compounds

Coupling granular activated carbon adsorption with membrane bioreactor treatment for trace organic contaminant removal: Breakthrough behaviour of persistent and hydrophilic compounds

Carbamazepine as a Possible Anthropogenic Marker in Water: Occurrences, Toxicological Effects, Regulations and Removal by Wastewater Treatment Technologies

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