Breakthrough analysis of continuous fixed-bed adsorption of sevoflurane using activated carbons

Ang, Teck Nam; Young, Brent R.; Taylor, Matthew; Burrell, Rob; Aroua, Mohamed Kheireddine; Baroutian, Saeid

doi:10.1016/j.chemosphere.2019.124839

Cited by 55 publications

(26 citation statements)

References 31 publications

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“…This is another confirmation that the sorbent is not fully saturated. Ang et al [96] observed close values for the saturation capacities in the case of the sorption of anesthetic gaseous agent on activated carbon when varying the flow rate. The rate coefficient k T (L mmol −1 h −1 ) linearly increases with the superficial velocity (between 0.32 and 2.390 L mmol −1 h −1 for LR; between 0.246 and 2.09 mmol −1 h −1 for NLR); consistently with the conclusions raised by Ang et al [96].…”

Section: Selectivity Studymentioning

confidence: 93%

“…Ang et al [96] observed close values for the saturation capacities in the case of the sorption of anesthetic gaseous agent on activated carbon when varying the flow rate. The rate coefficient k T (L mmol −1 h −1 ) linearly increases with the superficial velocity (between 0.32 and 2.390 L mmol −1 h −1 for LR; between 0.246 and 2.09 mmol −1 h −1 for NLR); consistently with the conclusions raised by Ang et al [96]. In the case of base metals using melamine-functionalized SBA-15 mesoporous silica, Shabazi et al [97] reported that a maximum sorption capacity was obtained at intermediary flow rate; the relevant sorption capacities were also lower than the corresponding sorption capacities obtained in batch mode.…”

Section: Selectivity Studymentioning

confidence: 93%

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Controlled bi-functionalization of silica microbeads through grafting of amidoxime/methacrylic acid for Sr(II) enhanced sorption

Wei

Rakhatkyzy

Salih

et al. 2020

Chemical Engineering Journal

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Section: Selectivity Studymentioning

confidence: 93%

Section: Selectivity Studymentioning

confidence: 93%

Controlled bi-functionalization of silica microbeads through grafting of amidoxime/methacrylic acid for Sr(II) enhanced sorption

Wei

Rakhatkyzy

Salih

et al. 2020

Chemical Engineering Journal

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“…Similar effects of inlet concentration are common in GAC systems and these have been included in several studies. Sotelo et al [47] reported an increase in the percentage of caffeine (from 77.71% to 91.74%) and diclofenac (from 58.75% to 71.54%) adsorption when the initial concentration of these compounds increased from 3 to 7 mg/L, while Ang et al [48] reported an increase in sevoflurane (an anesthetic) adsorption (from 536 ± 5 mg/g to 604 ± 9 mg/g and from 329 ± 5 to 368 ± 5 mg/g) when two different GACs (E-GAC and H-GAC, respectively) were used at inlet concentrations from 55.9 and 527.9 mg/L.…”

Section: • Inlet Cecs Concentration Effectsmentioning

confidence: 98%

WWTP Effluent Quality Improvement for Agricultural Reuse Using an Autonomous Prototype

Ponce-Robles

Masdemont-Hernández²,

Munuera-Pérez³

et al. 2020

Water

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Wastewater reuse presents a promising way to mitigate the risk to global water resources and achieve sustainability in water, especially in agricultural areas in the southeast of Spain, such as the Murcia region. However, the risks related to the presence of contaminants of emerging concern (CECs) or pathogenic microorganisms in wastewater treatment plant (WWTP) effluent suggest the need to implement effective and relatively low-cost tertiary treatments. With this aim, a self-sustainable pilot prototype based on three combined modules (disc-filtration, granular activated carbon (GAC) bed adsorption and UV disinfection) assisted by solar panels was installed as an alternative tertiary treatment in a conventional WWTP in the Murcia region. The obtained results clearly confirmed the efficiency of the proposed prototype for CECs removal, and showed optimal results at a workflow of 500 L/h. In all cases, high removal efficiency was obtained for the different indicator microorganisms described in the recently published Regulation (EU) 2020/741 (E. coli, F-specific coliphages, somatic coliphages, total coliphages, and Clostridium perfringens). The protection of the activated carbon by disc-filters and the energy autonomy and self-operation of the prototype resulted in an efficient and economically viable methodology for its implementation in both conventional WWTPs and in isolated areas attached to crops.

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“…Improving and investing in the development of scavenging systems could also mitigate the environmental effects of inhaled anesthetics. In recent years, new scavenging systems have been proposed to adsorb any waste gases on activated carbon or zeolite for subsequent reuse or destruction [35]. However, the safety and usability of these new systems, as well as the cost-effectiveness, have not yet been demonstrated [36].…”

Section: Suggestions For Mitigating the Impact Of Inhaled Anestheticsmentioning

confidence: 99%

Inhaled Anesthetics: Environmental Role, Occupational Risk, and Clinical Use

Costa

Kalmar

Struys

2021

JCM

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Inhaled anesthetics have been in clinical use for over 150 years and are still commonly used in daily practice. The initial view of inhaled anesthetics as indispensable for general anesthesia has evolved during the years and, currently, its general use has even been questioned. Beyond the traditional risks inherent to any drug in use, inhaled anesthetics are exceptionally strong greenhouse gases (GHG) and may pose considerable occupational risks. This emphasizes the importance of evaluating and considering its use in clinical practices. Despite the overwhelming scientific evidence of worsening climate changes, control measures are very slowly implemented. Therefore, it is the responsibility of all society sectors, including the health sector to maximally decrease GHG emissions where possible. Within the field of anesthesia, the potential to reduce GHG emissions can be briefly summarized as follows: Stop or avoid the use of nitrous oxide (N2O) and desflurane, consider the use of total intravenous or local-regional anesthesia, invest in the development of new technologies to minimize volatile anesthetics consumption, scavenging systems, and destruction of waste gas. The improved and sustained awareness of the medical community regarding the climate impact of inhaled anesthetics is mandatory to bring change in the current practice.

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Breakthrough analysis of continuous fixed-bed adsorption of sevoflurane using activated carbons

Cited by 55 publications

References 31 publications

Controlled bi-functionalization of silica microbeads through grafting of amidoxime/methacrylic acid for Sr(II) enhanced sorption

Controlled bi-functionalization of silica microbeads through grafting of amidoxime/methacrylic acid for Sr(II) enhanced sorption

WWTP Effluent Quality Improvement for Agricultural Reuse Using an Autonomous Prototype

Inhaled Anesthetics: Environmental Role, Occupational Risk, and Clinical Use

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