Aqueous benzene, toluene, ethylbenzene and xylene (BTEX) removal using core-shell structure activated carbon ball as a permeable reactive barrier material DOI Creative Commons
Minsung Kim,

Eunji Myung,

Hyunsoo Kim

et al.

Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102797 - 102797

Published: Aug. 28, 2024

Permeable reactive barriers (PRBs) are passive and sustainable treatment systems for remediating the diffusion of contaminant plumes in groundwater. Several conventional materials such as activated carbon (AC) have long been used media PRBs. AC, which is known its high adsorption capability cost-effectiveness, commonly to remove multiple pollutants from Unfortunately, among materials, AC can fill barrier pose practical problems, a pressure drop, solid losses during handling, safe disposal filled sorbents, because low particle strength. In this study, balls were prepared using zeolite core powdered quartz, calcite shell. ball with excellent mechanical strength permeability properties form core–shell layer good alternative materials. The characteristics benzene, toluene, ethylbenzene, p-xylene (BTEX) solutions investigated. equilibrium order X > E T B. capacity B (4.90 mg/g), (3.37 (1.16 mg/g) (0.46 observed at solution pH = 7. To validate proposed models, batch experiments indicated that pseudo-2nd-order (11.61 10.54 Langmuir models (8.81 5.27 most suitable describing kinetics benzene respectively. Regeneration performed chemical extraction (methanol) microwave (MW) heating. When was reused six times, removal efficiency maintained above 81 % methanol, whereas increased 91 MW. A series revealed considerable reusability. be effectively medium continuous flow system column sandbox. Based on these results, potential field-scale PRB remediation applications.

Language: Английский

Aqueous benzene, toluene, ethylbenzene and xylene (BTEX) removal using core-shell structure activated carbon ball as a permeable reactive barrier material DOI Creative Commons

Eunji Myung,

Hyunsoo Kim,

Nag‐Choul Choi

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 4, 2024

Abstract Permeable reactive barriers (PRBs) are passive and sustainable treatment systems for remediating the diffusion of contaminant plumes in groundwater. Several conventional materials such as activated carbon (AC) have long been used media PRBs. AC, which is known its high adsorption capability cost-effectiveness, commonly to remove multiple pollutants from Unfortunately, among materials, AC can fill barrier pose practical problems, a pressure drop, solid losses during handling, safe disposal filled sorbents, because low particle strength. In this study, balls were prepared using zeolite core powdered quartz, calcite shell. ball with excellent mechanical strength permeability properties form core–shell layer good alternative materials. The characteristics benzene, toluene, ethylbenzene, p-xylene (BTEX) solutions investigated. equilibrium order X > E T B. To validate proposed models, batch experiments indicated that pseudo-2nd-order Langmuir models most suitable describing kinetics benzene respectively. Regeneration performed chemical extraction (methanol) microwave (MW) heating. MW heating promising regeneration technique balls. A series (six adsorption–desorption cycles) revealed considerable reusability. Based on these results, potential medium field-scale PRB remediation applications.

Language: Английский

Citations

0
Aqueous benzene, toluene, ethylbenzene and xylene (BTEX) removal using core-shell structure activated carbon ball as a permeable reactive barrier material DOI Creative Commons
Minsung Kim,

Eunji Myung,

Hyunsoo Kim

et al.

Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102797 - 102797

Published: Aug. 28, 2024

Permeable reactive barriers (PRBs) are passive and sustainable treatment systems for remediating the diffusion of contaminant plumes in groundwater. Several conventional materials such as activated carbon (AC) have long been used media PRBs. AC, which is known its high adsorption capability cost-effectiveness, commonly to remove multiple pollutants from Unfortunately, among materials, AC can fill barrier pose practical problems, a pressure drop, solid losses during handling, safe disposal filled sorbents, because low particle strength. In this study, balls were prepared using zeolite core powdered quartz, calcite shell. ball with excellent mechanical strength permeability properties form core–shell layer good alternative materials. The characteristics benzene, toluene, ethylbenzene, p-xylene (BTEX) solutions investigated. equilibrium order X > E T B. capacity B (4.90 mg/g), (3.37 (1.16 mg/g) (0.46 observed at solution pH = 7. To validate proposed models, batch experiments indicated that pseudo-2nd-order (11.61 10.54 Langmuir models (8.81 5.27 most suitable describing kinetics benzene respectively. Regeneration performed chemical extraction (methanol) microwave (MW) heating. When was reused six times, removal efficiency maintained above 81 % methanol, whereas increased 91 MW. A series revealed considerable reusability. be effectively medium continuous flow system column sandbox. Based on these results, potential field-scale PRB remediation applications.

Language: Английский

Citations

0